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WO2008084100A2 - Device for keeping away insects from an outdoor area section - Google Patents

Device for keeping away insects from an outdoor area section

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Publication number
WO2008084100A2
WO2008084100A2 PCT/EP2008/050297 EP2008050297W WO2008084100A2 WO 2008084100 A2 WO2008084100 A2 WO 2008084100A2 EP 2008050297 W EP2008050297 W EP 2008050297W WO 2008084100 A2 WO2008084100 A2 WO 2008084100A2
Authority
WO
Grant status
Application
Patent type
Prior art keywords
device
insects
area
insecticide
member
Prior art date
Application number
PCT/EP2008/050297
Other languages
German (de)
French (fr)
Other versions
WO2008084100A3 (en )
Inventor
Burkhard Bauer
Peter-Henning Clausen
Original Assignee
Freie Universität Berlin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K3/00Pasturing equipment, e.g. tethering devices; Guiding corridors; Corrals, e.g. portable, collapsible; Grids for preventing cattle from straying; Electrified wire fencing
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING OR TRAPPING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00Stationary means for catching or killing insects
    • A01M1/20Poisoning, narcotising, or burning insects
    • A01M1/2022Poisoning or narcotising insects by vaporising an insecticide
    • A01M1/2027Poisoning or narcotising insects by vaporising an insecticide without heating
    • A01M1/2055Holders or dispensers for solid, gelified or impregnated insecticide, e.g. volatile blocks or impregnated pads
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING OR TRAPPING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00Stationary means for catching or killing insects
    • A01M1/24Arrangements connected with buildings, doors, windows, or the like

Abstract

The invention relates to a device for keeping away insects from an outdoor area section, comprising a shielding element (3), at least one part of said shielding element (3) comprising an insecticide that can be transmitted to insects touching the shielding element (3). According to the invention, the shielding element comprises a plurality of individual microcapsules (10) which contain the insecticide (13) in their respective interior (11), characterized in that the insecticide is enclosed by an envelope (12) surrounding the interior (11) of the individual microcapsules (10). Alternatively, the device is arranged in an outdoor area that is delimited by a fence device in which animals can move freely right to said fence device. Furthermore, the device can be configured as a mobile system so that it can be removed as a structural unit from its installation site to be put up at a new installation site. The invention also relates to the use of a corresponding device.

Description

A device for keeping insects from a portion of an outdoor area

description

The present invention relates to a device for keeping insects from a portion of an open air area according to the preambles of claims 1, 3 or 4. The invention further relates to a use of a corresponding device according to the preamble of claim 23 and a method according to the preamble of claim 27th

Sucking and biting insects result in a significant impairment of the animal health. In Europe, horses are attacked during the grazing, by braking and other nuisance insects and significantly disturbed in their well-being.

The group of nuisance insects include insects which seek a host animal to pierce blood or for recording to absorb body secretions. Insects from this group can also transmit pathogens to some extent. The following types or families are among the nuisance insects:

Nematocera (mosquitoes), in particular Culicidae (mosquitoes) and with Anophelinen Culicinen; Psychodidae (moth flies), Simuliidae (black flies) and Ceratopogonidae (biting midges) - Brachycera (flying) with Tabanidae (brakes), Glossinidae (tsetse flies)

Muscidae (true flies), Calliphoridae (blowflies) and Oestridae (Warbles).

By massive infestation by various Culicoides species (biting midges) occurs in horses to form the so-called summer eczema. The clinical prevalence of this disorder is estimated at 10% of the total horse population, which includes about 3 million individuals in Germany.

In the case of the occurrence of a feared climate change and the likelihood of transmission to date exotic pathogens will increase. Thus, the outbreak of the so-called blue tongue disease in sheep and cattle in several Central European countries could already be seen in this context. Bluetongue is transmitted by biting midges.

In the prior art, the defense and the fight against sucking and biting insects limited predominant as the use of insecticides directly on the animal and on the application of insecticides in the vicinity of the protected animals. In both cases, the effectiveness of the insecticides used only a few days holds, occasionally even a few hours. In horses furthermore additionally be used horse blankets to ward off biting midges. In areas with a high density of insects, the animals are held during the day in the barn and only at night looking to pasture.

From EP 1 41 1764 A1 a fence for preventing intrusion of low-flying insects in an outdoor area is known, surrounding the open air area completely or partly. It is particularly intended to completely surround a coupling or a pasture area as an open air area with the fence to the entire coupling or

to keep grazing area of ​​low flying insect free. In this way, the penetration of low-flying insects can be prevented in large areas. In this case, the insecticide is applied by impregnation and / or incorporation in a part of the fence.

From DE 10 2004 037 752 A1 fibers and textile fabrics are known which are provided for achieving a higher wearing comfort with particular cosmetic substances, some of which are microencapsulated applied to the fibers and fabric. In DE 10 2004 037 752 A1 also provides methods for producing microcapsules are described which can be used in the present invention.

Comparable applications for microcapsules are known from WO 03/093571 A1, the US Patent 6,355,263, EP 0436729 A1 and DE 2318336 OS known. The terms "microcapsule" or "nanocapsule" understood to be spherical aggregates with a diameter be in the range of about 0.0001 to about 5 mm, and preferably 0.005 to 0.5 mm from the skilled person, the (at least one solid or liquid core inside the microcapsule) containing, enclosed by at least one continuous membrane. More specifically, it is coated with film-forming polymers are finely dispersed liquid or solid phases in the production of which the polymers after emulsification and coacervation or interfacial reflected onto the material.

According to another method, molten waxes are absorbed in a matrix ( "microsponge"), which can be coated as microparticles with additional film-forming polymers according to a third method, particles are alternating with polyelectrolytes of different charge coated (,, layer-by-layer. "- process). The microscopically small capsules can be dried like powder.

Besides single-core microcapsules are also multiple-core aggregates, also known as microspheres known which contain two or more cores distributed in the continuous shell material. Single or multi-core microcapsules may be surrounded by an additional second, third etc. membrane. The shell may consist of natural, semisynthetic or synthetic materials.

Natural membrane materials are, for example, gum arabic, agar-agar, agarose, maltodextrin, alginic acid and salts thereof, for. , Sodium or calcium alginate, fats and fatty acids, cetyl alcohol, collagen, chitosan, lecithins, gelatin, albumin, shellac, polysaccharides, such as starch or dextran, polypeptides, protein hydrolyzates, sucrose and waxes.

Semisynthetic membrane materials are inter alia chemically modified celluloses, more particularly cellulose esters and ethers, eg. Cellulose acetate, ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose and carboxymethyl cellulose, and starch derivatives, more particularly starch ethers and esters.

Synthetic membrane materials are, for example, polymers such as polyacrylates, polyamides, polyvinyl alcohol or polyvinyl pyrrolidone. Examples of microcapsules of the prior art are the following commercial products (in

is given parenthesis the shell material) Hallcrest Microcapsules (gelatin,

Gum arabic), Coletica Thalaspheres (maritime collagen), Lipotec Millicapseln (alginic acid, agar agar), Induchem Unispheres (lactose, microcrystalline cellulose,

Hydroxypropyl methylcellulose); Unicerin C30 (lactose, microcrystalline cellulose,

Hydroxypropylmethyl cellulose), Kobo Glycospheres (modified starch, fatty acid esters,

Phospholipids), Softspheres (modified agar agar) and Kuh Probiol Nanospheres

(Phospholipids) and Primaspheres and Prima Sponges (chitosan, alginates) and Primasys (phospholipids).

The present invention is an object of the invention to provide a device that animals, especially grazing animals, provides protection against insects. In particular, an insecticide over a very long period of time on the device to be maintained. Preferably, the device may be as simple as possible set up simultaneously at different locations. The invention further has for its object, and to provide a suitable use for the device and to provide a method for manufacturing the device.

This object is achieved with a device for keeping insects from a portion of an open air area with the features of claim 1. Such a device comprises a to pitch at a site of the open air area shielding member, wherein at least a portion of the shielding member comprises an insecticide, contaminating the insects which come into contact with the shielding member, and is suitable for killing of nuisance insects, who want to attack in particular grazing livestock ,

According to the invention, it is contemplated that the shielding of the device has a multiplicity of individual microcapsules containing an insecticide in its interior, wherein a sheath surrounds the interior of the microcapsule. It is conceivable that more than one sheath surrounding the interior of the individual microcapsules. Likewise, the interior of the individual microcapsules must not consist of a single core, but may, as already mentioned above, comprise a plurality of cores. Preferably, the microcapsules are used as preparations in the form of aqueous dispersions having a solids content in the range of 5 to 50 weight percent, preferably 10 to 40 weight percent and in particular 15 to 30 weight percent. The object is also achieved with a device for keeping insects from a portion of an open air area with the features of claim. 3 Such a device comprises a to pitch at a site of the open air area shielding member, wherein at least a portion of the shielding member comprises an insecticide, contaminating the insects which come into contact with the shielding member, and is suitable for killing of nuisance insects, who want to attack in particular grazing livestock , According to the invention, it is provided to arrange the device within a by a fence device, in particular by a fence, the delimited open-air area, wherein animals - in particular grazing animals such as horses, cows, sheep, goats, etc. - freely within the confined outdoor area substantially to the enclosure device can move. It is also conceivable that the animals are tethered in confined outdoor area and their range of motion is correspondingly lower.

The object underlying the invention is also achieved with a device for keeping insects from a portion of an open air area with the features of claim. 4 After that, it is provided that the apparatus is configured mobile so that it can be removed as a structural unit from their site and set up at a new site. As a structural unit, the device as such is, if necessary, viewed in conjunction with other identically configured devices. By this mobility and flexibility, which can be achieved, for example, through the array of roller wheels or other moving members, the device can be flexible and easy to set up at different locations and removed again. A transport between the different sites because of this mobility is easy. Instead of certain moving elements, the device also feet or slightly anchored in the ground posts may have.

In a variant, the shield can each of the two last-mentioned devices have a multiplicity of individual microcapsules, the insecticide disposed within their respective inside and is surrounded by a the interior of the individual microcapsules surrounding sheath.

In a preferred embodiment of the invention, the interior of the microcapsule is designed surrounding sheath such that the insecticide is engageable with the respective surfaces of the individual microcapsules. The sheath preferably causes a prolonged release of the insecticide from the interior of the microcapsule to the surface of the sheath. This can be made possible, for example, by slow diffusion through the envelope. Because of these properties, it is possible that the insecticide over a considerably longer period is available on the shielding of the apparatus, as if it were applied directly to the shield.

In an alternative embodiment of the invention it is also conceivable that the sheath is impermeable for the insecticide and the insecticide is then released when the shell of the microcapsule is broken or destroyed (partial). Such destruction may be achieved, for example, by an increased mechanical stress or by the passage of time diminishing, for example by external influences stability of the shell.

In order to allow a good connection of the individual microcapsules to the shield and thus to ensure a lasting over a long period compound of the microcapsule to the shield member, the individual microcapsules are directly connected by means of its case or by means of an electrode disposed on the sheath binding substance to the shield member. When binding substances are, in particular, the following substances are: polymeric melamine compounds, polymeric glyoxal compounds, polymeric silicone compounds, epichlorohydrin crosslinked polyamidoamines, poly (meth) acrylates, polyalkylene glycols, and polymeric

Fluorocarbons.

Polymeric melamine compounds consisting of melamines, wherein melamine (synonym: 2,4,6-triamino-1, 3,5-triazine) is usually prepared by trimerization of dicyandiamide or by cyclization of urea with elimination of carbon dioxide and ammonia. For the purposes of the invention will be understood by oligomeric or polymeric melamines condensation products of melamine with formaldehyde, urea, phenol, or mixtures thereof.

Polymeric glyoxal compounds consisting of glyoxals, wherein glyoxal (synonym: oxaldehyde, ethanedial) is prepared by vapor phase oxidation of ethylene glycol with air in the presence of silver catalysts. For the purposes of the invention, the self-condensation products of glyoxal ( "polyglyoxals") are understood to be glyoxals.

Polymers, silicone compounds composed of suitable silicone compounds, which include, dimethyl polysiloxanes, methylphenyl polysiloxanes, cyclic silicones and amino-, fatty acid-, alcohol-, polyether-, epoxy-, fluorine-, glycoside- and / or alkyl-modified silicone compounds, which at room temperature is preferably fixed or are present in resin form, count. Also suitable are silicon methicone, in which are mixtures of dimethicones with an average chain length of 200 to 300 dimethylsiloxane units and hydrogenated silicates.

Epichlorohydrin crosslinked polyamidoamines, which are also referred to as "fibrabones" or "Wet strength resins", are well known in the textile and paper technology and can be produced by the processes described in the prior art manufacturing process.

The term poly (meth) acrylates are homo- and copolymerization products of acrylic acid, methacrylic acid and optionally their esters, especially the esters thereof with lower alcohols such. to be understood as methanol, ethanol, isopropanol, the isomeric butanols, cyclohexanol and the like, which are obtained in known manner, for example by free-radical polymerization under UV irradiation. Typically, the average molecular weight of the polymers between 100 and 10,000, preferably between 200 and 5000 and especially between 400 to 2000 daltons.

The term polyalkylene homo- and copolymerization of ethylene, propylene and optionally butylene oxide are to be understood. The condensation of alkylene oxides can be carried out in manner known per se in the presence of alkaline catalysts, although the acid catalysis is preferred. Be used, for example mixtures of ethylene oxide and propylene oxide, the polymers may have a block or random distribution. Typically, the average molecular weight of the polymers between 100 and 10,000, preferably between 200 and 5000 and especially between 400 to 2000 daltons.

The feed ratio between the microcapsules and binder substance may be from 90:10 to 10:90, preferably 75:25 to 25:75 and especially 60:40 to 40:60 parts by weight. Depending on the production and use ratio of microcapsules and binding substances Different forms of adhesion can be realized. Where a smaller

Amount of binding substance (for example, at a weight ratio between

Microcapsules and connective tissue of greater than or equal to 50:50) adhering the microcapsules in a layer of binding substance on the appropriate substrate (i.e., preferably on the shielding of the apparatus according to the invention), which leads to a direct contact to the shell of the microcapsule is possible. It is obvious that it ( "carrier type") may occur very quickly to a release of the active ingredient in this type liability due to mechanical friction.

On the other hand, a larger amount of binding material used (for example, at a weight ratio of microcapsules to binding substance of less than 50:50), then this is usually sufficient to bind the microcapsules not only on the ground, but the possibility to wrap or with to provide a coating ( "igloo type").

The walls of the microcapsules, which are arranged on a substrate, are not directly exposed, with the result that although the insecticides contained in them can be released in smaller quantities by the binding material layer is preferably, but are effective over a longer period.

The binding substance is preferably designed such that the insecticide, which passes therethrough from the interior of the microcapsule through the sheath to the surface of the microcapsule by the binder can pass therethrough (e.g., by diffusion). In an alternative embodiment of the invention, it may also be provided that the binder is impermeable for the insecticide and needs to be removed to the product derived from the interior of the microcapsule insecticide is so presented on the shielding member, it is transferred to an insect, which comes into contact with the shield of the device.

A with respect to the time within which an insecticide from the interior of the microcapsule is released, and to allow various possible populations of microcapsules with respect to the to-use insecticide, it is preferably provided that the microcapsules with regard to their shell and / or the insecticide, which in their

Inside is arranged different physical, mechanical and / or chemical

have properties. This makes it possible that the arranged in its interior insecticide release some microcapsules very quickly, while other microcapsules release the insecticide arranged in its interior only after a very long delay.

Further, it is possible in this way, the inventive apparatus with various

to treat insecticides simultaneously so different a better effect against

to achieve insect species, especially nuisance species of insects to be killed off by means of the inventive device. Preferably, the shielding member from other components (particularly, not of posts carrying the shielding member) of the device must be disconnected in order to transport the apparatus from one site to another site. The apparatus is preferably designed so that they can be degraded by a single person average age and average power without further aids, transported and rebuilt.

In particular, it is provided in a variant that the mobile device is configured such that it can be removed as a structural unit from their site and set up at a new site.

As a structural unit, the device as such is, if necessary, viewed in conjunction with other identically configured devices. By this mobility and flexibility, which can be achieved, for example, through the array of roller wheels or other moving members, the device can be flexible and easy to set up at different locations and removed again. A transport between the different sites because of this mobility is easy. Instead of certain moving elements, the device also feet or slightly anchored in the ground posts may have.

In a preferred embodiment of the invention, it is provided to arrange the device within a by a fence device, in particular by a fence, the delimited open-air area, wherein animals - in particular grazing animals such as horses, cows, sheep, goats, etc. - within the confined outdoor area substantially can move freely up to the enclosure device. It is also conceivable that the animals are tethered in confined outdoor area and their range of motion is correspondingly lower.

The site of the device is preferably a bottom portion of the open-air area, in which the device is set up.

To enable the best possible effect against flying insects, in particular nuisance insects, the shielding member preferably extends substantially perpendicular from the floor of the open air area or from the site away, so that the shielding member is a substantially perpendicularly oriented to the plane of the bottom barrier to insects , The shielding member preferably has a height which is suitable to prevent low-flying nuisance insects from entering into a horizontal side of the device portion of the open air area. while such nuisance insects are considered a low-flying nuisance insects, flying at a height of up to about 1, 5 meters, or approximately 1 meter above the ground. It has been found that many species of insects are among the most low-flying nuisance insects, which means that they fly no higher than 1, 5 meters above the ground.

In a preferred embodiment of the invention the shield has a height between 0.5 and 1, 5 meters and a total height of approximately 1, 1 to 1 m, 7 m above the ground (that is, it preferably does not lie directly on the floor but only begins at a distance of about 10 to 20 cm above the ground, in order to provide crawling insects through a slip). Thus it is not possible low flying insects to fly over the shielding of time. Thus, objects or living beings, which have a height greater than 1, 5 or 1, 7 meters and located downstream of the device, prior to low-flying insects themselves are protected, in order to jump to that living being or object, the device happen would , Particularly advantageous height for the shield next to an altitude of about 1, 5 meters, a height of about 1 meter has been found.

To be mounted with minimal effort or dismantled, the device extends substantially only along a straight line in the plane of the open air area on which the device is placed, or is placed. It is possible, a plurality of devices are added, if appropriate one after the other to be arranged such that an insect, In order to pass from a portion of the open-air area, which is before the devices to a portion located behind the apparatus, must pass through more than one device. It is also conceivable to construct a combination of two or more devices in which the respective devices are not parallel, but are arranged at an angle to each other. As a particularly advantageous embodiment of the invention is provided to combine two devices crosswise with each other.

One advantage of the device according to the invention is that they are not a complete

shall include open-air area in the form of a pasture or coupling, but that it is preferably arranged on an open-air area, that the device located behind the portion of the open-air area is small relative to the overall open-air area. Thus, a zone is formed inside the open-air area where the animals are protected before the test or penetration of (Lästlings-) insects. Compared with a large-scale arrangement of a fence or other Abhaltemittels for protection against insects, this embodiment of the invention has the advantage that it is made much cheaper and easier to assemble. A portion of an open-air area is particularly small compared to the whole outdoor area, if it is less than half, in particular less than one-tenth of the entire outdoor area.

Another advantage of the device according to the invention is that it protects animals especially against nuisance insects during non-target insects or worth protecting insect species remain essentially unaffected.

In order to achieve a good activity against insects and at the same time can have a high absorption capacity for insecticides, the shield member of the device is preferably a rigid or flexible (bendable) wall, a film, a perforated film, a woven fabric, a perforated composite material and / or a net. Also combinations of the above materials are also conceivable. A net or a sieve-like structure is particularly so advantageous because insects often do not perceive such a structure as an obstacle and fly right. Alternatively, the shield member could also have a color that for certain selected insects (Zielbzw. Nuisance insects) is attractive to attract certain insect species exactly this and to be brought into contact with the shielding member and so with the insecticide applied thereon.

Regardless of whether the shield is constructed as a perforated object or as a network or mesh-like structure, existing openings are preferably dimensioned so that its size is smaller than the size of insects by means of the shielding from reaching the other side of the shielding member in the shielding lying portion of the outdoor area is to be prevented.

To obtain a good durability of the shield at the same time easier to ensure processing, preferably, the shield member on with an insecticidal active ingredient treated polymer fibers. This can be achieved in particular by impregnation and / or incorporation of the insecticidal active ingredient on the surface or in the interior of the polymer fibers. Here, the insecticidal active substance and the material of the shielding element are matched to one another, that the insecticidal active substance gradually passes to the surface of the shielding member and is compensated by worn there insecticidal active ingredient by which continues to diffuse from the interior of the shielding insecticidal active ingredient.

For an advantageous insecticidal activity, preferably, the insecticidal active ingredient a pyrethroid, an organophosphorus compound and / or a carbamate. Further, it may consist of parts or completely of an insecticide with a sterilizing and / or growth regulating effect on insects. Particularly advantageous insecticides of the above classes are in particular the compounds in claim 12 and in paragraphs [0038] to [0043] European patent EP 1 41 1764 B1 mentioned, which are expressly incorporated into the present patent application by the above reference.

Thus, decomposition of the insecticide or the material from which the shielding member is formed is reduced by means of UV rays or prevents the shield from a to UV radiation resistant material is made or has alternatively or additionally, a protective against UV rays material on, which is in particular applied to the shield member.

Preferably the apparatus is arranged within a confined by a fence device outdoor region in which particular animals can move freely to the enclosure device. This ensures that the entire outdoor area, but only one from insects must be provided to be protected section of the open-air area with an inventive device. In this way, significant problems of environmental pollution, which can result from an over a large area was carried out arrangement of insecticide-treated fence be avoided. In particular, can be prevented in this manner that non-insect pests which are held by a large area shielded by means of a closed fence area, in an area in which only individual devices according to the invention are able to penetrate. Thus, for example, a fertilization of flowers and other plants, which are located within a space defined by a fence or other enclosure device region, facilitates that is no longer guaranteed when using a surrounding an open air area insecticide-treated fence. The total floral and faunal edge area of ​​a confined by a fence device outdoor area benefited if no insecticide-treated fence is used in this edge region. The object underlying the invention is also achieved by the use of an inventive device according to the features of claim 23rd

Accordingly, the apparatus is used for local and / or temporary protection of individual human beings, animals, tents and / or building, wherein as an insert for the protection of, in particular smaller groups of people, animals, tents and / or buildings, the invention provides. In this case, use of the device for the protection of horses on a paddock or other grazing animals on a pasture area is particularly advantageous. They also suitable for the protection of people in heavily polluted regions insects, for example, during sports activities outdoors.

In particular, the installation location of the device is located within a confined by a fence device outdoor area in which to animals can move freely up to the enclosure device. The advantages entailed by such use meet the above-mentioned substantially.

Particularly preferred is a use of the device according to the invention at resting places, feed and / or water and / or any other, accessible to livestock locations where an increased incidence of nuisance insects is or is regularly observed. Such well-known "approach paths" attackierender insects can be selectively shielded.

The use of the device is limited to such a time interval shorter than an entire grazing season (this is approximately the period from April to October) is.

Thus one is the varying during a grazing season local supply of food or water or the equally varying favors certain Resting Places

(For example, depending on the seasonally varying solar altitude) meet. With such a temporary installation of the device according to the invention can be extremely flexible response to the given local and seasonal conditions so while maintaining an inventively effective protection against insects.

The object underlying the invention is also achieved by a method having the

dissolved features of claim 27th Accordingly, an insecticide on a shield member of a device according to the invention is applied in that the insecticide is arranged in the interior of a microcapsule and the microcapsule is applied to the shield member of the device. The microcapsule in this case has a further inside the microcapsule shell surrounding.

The shell of the microcapsule is preferably designed such that the insecticide can pass through the sheath to the surface through to the surface of the microcapsule.

Furthermore, it is advantageous when the microcapsule is brought into communication directly with its case or by means of an electrode disposed on the sheath binding substance to the shield member of the device, so as to permit a sustained over a longer period compound of the microcapsule to the shield member.

Further advantages and details of the invention will be described in more detail using the following figures. Show it:

Fig. 1 shows a first embodiment of a device according to the invention,

Fig. 2 shows a first combination arrangement of a device according to the invention,

Fig. 3 shows a second combination arrangement of a device according to the invention,

Fig. 4 is a microcapsule according to the invention is used as an insecticide carrier,

Fig. 5A, a first possibility of arrangement of the microcapsule shown in Fig. 4 on a shield member of a device according to the invention,

FIG. 5B is a second way of an arrangement of the microcapsule shown in Fig. 4 on a shield member of a device according to the invention and

FIG. 5C is a third possibility of arrangement of the microcapsule shown in Fig. 4 on a shield member of a device according to the invention.

Fig. 1 shows a folding screen 1 as an embodiment of an inventive

Device, which consists of a plurality of substantially mutually parallel upright 2, between which an insecticidally treated net 3 is arranged as a shielding member. Here, the network 3 have such a width that is greater than the distance between two adjacent posts 2 and, consequently, extend over more than two poles. 2 Alternatively, it is also possible that the network 3, has only a width corresponding to the distance between two adjacent posts 2, so that the folding screen 1 is composed of a plurality of connected together and to the post 2 networks. 3

For simplicity, only a single plurality of identical nets 3 are marked with the corresponding reference numerals in this and the following figures.

The screen 1, the post 2 and the insecticide-treated network 3 represent a structural unit.

The mesh 3 extends substantially perpendicular away from the floor B. It does not extend over the entire height of the uprights 2 but begins only at a height above the ground B, which is approximately 10 to 20 cm. Thus, it is possible that non-flying insects (particularly crawling insects), and other non-flying animals can pass under the net 3, to enter the portion of the open-air area, which is arranged behind the screen. 1

The screen 1 shown in Fig. 1 has a total of 1, 7 m above the ground (20 cm of the network 3 from the base B at an altitude of the network 3 from 1, 5 m). In an alternative embodiment of the invention, the folding screen could only a height of a total of 1, m 1 have (10 cm distance of the network 3 from the base B at an altitude of the network 3 from 1, 0 m). Likewise alternative heights between these values ​​are conceivable. The width of the screens 1 is 20 meters. This width of 20 meters is significantly smaller than the dimensions of a pasture or coupling as a whole. That is, the Screen 1 is not used to define an entire pasture or paddock, but the strategic protection of individual and limited areas of the paddock or meadow or pasture. The strategic deployment of Screens 1 leads to a reduction of effort and thus the costs.

Also of particular importance aspects of environmental protection. Thus protecting a fence completely surrounding a pasture or paddock, although the animals present in the pasture or paddock also be killed even before einfliegenden nuisance insects, but others, worthy of protection and rare non-target insects upon contact with such a large scale mounted fence. Such non-target insects include for example, all wild bees and hoverflies most. It was shown by tests on a test area that within a completely delimited with a insecticide-treated net fence area of ​​the stock of hover flies was significantly reduced. The reduction or even threat of the stock endangered or worthy of protection insect species is not acceptable.

By spatially limited Screen 1, the standing behind the screen 1 animals against sucking or biting insects flying to the animals, protected while non-target insects are not affected by the folding screen. 1

To simplify transport of the screens 1 of a location to the nearest 2, the post at its lower side in an embodiment of the invention, the moving elements 4 by means of which the folding screen 1 can be easily moved. Alternatively, it is also possible that 4 feet are provided in place of the movement elements by means of which the folding screen 1 is placed on the bottom B of the grazing area or coupling. To ensure mobility of the screens 1, it is not advantageous to anchor the posts 2 permanently in the bottom B.

Fig. 2 shows a first example combination of two screens 1a, 1b, slightly offset to each other one behind the other on the floor B of a coupling or grazing area are arranged. Nuisance insects, have from one side of Screens 1 a, 1 wish to travel to the other side b both screens 1a, b pass 1, increasing the likelihood that these insects can overcome those from the screens 1a, 1b barrier formed , compared to the use of a simple Screens 1 (see FIG. 1) is additionally reduced.

The screens 1 a, 1 b of FIG. 2 are comparable in principle constructed with the folding screen 1 of Fig. 1, that is, they consist of post 2 and between these poles arranged networks 3, which are treated with insecticide. The height of the screens 1 a, 1 b is in each case 1, 7 m above the ground, while its width is 8 feet, respectively. are, depending on the terrain of the coupling or pasture on which the screens 1a, 1b arranged, and the size of the animal to be protected group are also other dimensions of the screens 1a, 1b conceivable.

Fig. 3 shows a second combination example of an apparatus according to the invention, in which two screens 1 c, 1 d are arranged to form a cross-shaped structure angularly to one another. The general structure of the screens 1c, 1d corresponds to the previously described embodiments, that is, these screens consist of post 2 and attached thereto networks 3. The height of the screens 1 c, 1d is 1, 7 meters above the ground, while their width in each case is 8 meters. Such a cross-shaped arrangement of two screens 1 c, 1 d provides the advantage that animals who want to protect against insects, depending on the wind direction in one of the quadrants I to IV of the cruciform Paraventanordnung the Screens 1c can provide 1d. Thus, this combination arrangement provides good protection against insects even with different weather conditions.

The inventive device is particularly suitable for controlling biting midges, causing the summer eczema in horses and transferred bluetongue on sheep and cattle. Likewise, it is suitable for the control of nuisance insects in horses and other farm animals, and insects that affect the stabling of farm animals. By an appropriate insect control the yield obtained by means of the farm animals can be increased, resulting in an increase in the income of the rural population. In medically significant problems, such as the control of certain species of mosquitoes, or the tsetse fly, using the apparatus according to the invention is a concurrent control possible with respect to the occurrence of the in question insect species. Also, the device is suitable for the protection of open stables in the tropics, for the protection of hotels and public buildings and for the protection of refugee camps.

4 shows a microcapsule 10 that may be used in the present invention as an insecticide carrier. The microcapsule 10 has an inner region or core, which will be referred to as a heart 11, and the interior 11 surrounding sheath 12. In the interior 11 of the microcapsule 10, an insecticide 13 is arranged. The insecticide 13 may, in pure solid or liquid form, are present as an aqueous solution or emulsion or dispersion.

The diameter of the microcapsule is in the range between 0.0001 and about 5 mm and preferably in the range from 0.005 to 0.5 mm. 13 as an insecticide, any commercially available insecticide can be used, particularly preferably the insecticides mentioned above in the description of the present invention are employed. 5a shows a first possibility, an arrangement of a microcapsule 10 on a shield member 3 of an inventive device. In this first option, the microcapsule 10 is arranged directly with its case 12 on the surface of the shielding member. 3 This arrangement has the advantage that no additional binding substances for binding of the microcapsule 10 on the shield member 3 are required at the same time, should however be noted that the connection between the microcapsule 10, and the shield member 3 may not be as stable as when a binding substance additionally would be used.

Figure 5b shows a second possibility of arrangement of a microcapsule 10 on a shielding member 3 of an inventive device. In this second possibility, an additional binding material 14 is used, which is disposed at the lower portions of the casing 12 which are hingewandt for shielding. 3 This allows the shielding member 3, a firmer connection of the microcapsule 10, since the contact surface between the shielding 3 and the microcapsule is increased by the binder 14 10th The arrangement of the binding material 14 according to the embodiment of Figure 5b corresponds to the above-mentioned "volume type".

At the side facing away from the shielding member 3 of the microcapsule 10 is also a full accessibility to the sheath 12 and thus to the insecticide 13, which is located in the interior 1 1 of the microcapsule, and can pass preferably through the sheath 12, is ensured. 12 also is subject to the sheath at its side facing away from the shielding member 3 of the microcapsule is substantially the same mechanical stresses to which the shell 12 would be subject even without the presence of a binding substance fourteenth That is also the case of a non given possibility of passing of the insecticide 13 through the sheath 12, a breaking of the sheath 12 for release of the insecticide 13 would be unrestricted in relation to the first possible arrangement of the microcapsule 10 on the shielding member 3 is possible.

Figure 5c shows a third possibility of arrangement of the microcapsule 10 on the surface of the shielding member 3 of an inventive device. In this third option, the microcapsule 10 is completely enveloped by a binding substance fourteenth The binding material 14 in this case acts as a protective additional envelope to the shell 12 of the microcapsule 10. The arrangement of the binding material 14 according to the embodiment of Figure 5c corresponds to the above-explained "igloo type." A arranged in the interior 11 of the microcapsule 10 insecticide 13 has in this can contact case to contaminate an organism that comes into contact with the shielding member 3, not only through the sheath 12 but also by the binding substance 14 therethrough. This can on the one hand to ensure the fact that the binding material 14 permeable to the insecticide 13 is, on the other hand, it is also conceivable that the binding substance decays by mechanical stress or by an occurring in the course of its life instability 14, so that the shell 12 of the microcapsule is exposed 10th

In order to continue to provide good bonding of the microcapsule 10 on the shielding member 3 in such a possible disintegration of the stability of the binding material 14, it is preferably provided to keep the strength of the bonding substance 14 on the shield member 3 opposite side of the microcapsule 10 is less than the sides of the microcapsule 10, which face the shield member 3 and which serve to provide increased binding mediation between the microcapsule 10 and the shielding member. 3

* * * * *

LIST OF REFERENCE NUMBERS

1 Screen

2 posts

3 power

10 microcapsule

1 1 heart of the microcapsule

12 shell of the microcapsule

13 insecticide

14 binding substance

B floor

I-IV stay Quadrant

Claims

claims
1. A device for keeping insects from a portion of an open air area with a shield member (3), wherein at least a portion of the shield (3)
having insecticide (13) which is on insects that touch the shield member (3), transferred,
characterized,
enclosed that the shielding (3) a multiplicity of individual microcapsules (10), in their respective interior (1: 1) the insecticide (13) and by an inside (1 1) of the individual microcapsules (10) surrounding the sheath (12) is.
2. Device according to claim 1, characterized in that the shielding (3) at a site, in particular a bottom (B), the open-air area is set up.
3. An apparatus for keeping insects from a portion of an open air area with a drawn up at a site of the open air area shielding
(3), wherein at least a portion of the shield member (3) comprises an insecticide which is on insects that touch the shield member (3), transferred,
characterized,
that the device is arranged within a confined by a fence device outdoor area in which to animals can move freely up to the enclosure device.
On insects touching 4. A device for keeping insects from a portion of an open air area with a drawn up at a site of the open air area shield member (3), wherein at least a portion of the shield member (3) comprises an insecticide which the said shield (3) , is transferable,
characterized in that the device is configured in such a mobile that it can be removed as a structural unit from their site and set up at a new site.
5. Device according to one of claims 3 to 4, characterized in that the shielding (3) a multiplicity of individual microcapsules (10), in their respective interior (11) placed the insecticide (13) and (from a the interior 1 1 ) of the individual microcapsules (10) surrounding the sheath (12) is enclosed.
6. Device according to one of claims 1, 2 or 5, characterized in that the sleeve (12) is designed such that the insecticide (13) can pass (10) to the surface of the individual microcapsules.
7. Device according to one of claims 1, 2, 5 or 6, characterized in that the individual microcapsules (10) by means of its envelope (12) or are arranged by means of a to the sheath (12) bonding substance (14) to the shield member (3 ) keep in touch.
8. Device according to one of claims 1, 2 or 5 to 7, characterized in that the individual microcapsules (10) in terms of their sheath (12) and / or the insecticide (13) different physical, mechanical and / or chemical
have properties.
9. Device according to one of claims 1, 2 or 5 to 8, characterized in that the respective covers (12) of the individual microcapsules (10) with respect to the permeability to the insecticide (13) differ.
10. The device according to one of claims 1 to 3 or 5 to 9 when appended directly or indirectly on any of claims 1 to 3, characterized in that the device is configured in such a mobile that it removes as a structural unit from their site and can be set up a new site.
1 1. Device according to one of the preceding claims, characterized in that the device is designed such that the shielding element (3) does not have to be separated from other components of the apparatus to remove the device from their site and set up at a new site ,
12. Device according to one of the preceding claims, characterized in that the site a portion of a base (B) is of the open air area.
13. Device according to one of the preceding claims, characterized in that the shield (3) is oriented substantially perpendicular to the site.
14. Device according to one of the preceding claims, characterized in that the shielding (3) has a height which is suitable to prevent low-flying insects to, one into a horizontal section beyond the apparatus
to get open-air area.
15. Device according to one of the preceding claims, characterized in that the shielding (3) has a height between 0.5 and 1, 5 m.
16. Device according to one of the preceding claims, characterized in that the device is provided and designed to extend substantially only along a straight line in the plane of the open air area.
17. Device according to one of the preceding claims, characterized in that the device is dimensioned such that the device beyond the exposed portion of the open air area is small compared to the overall open-air area.
18. Device according to one of the preceding claims, characterized in that the shielding (3), a rigid or flexible wall, a foil, a perforated
comprising foil, a fabric, a perforated composite material and / or a network.
19. Device according to one of the preceding claims, characterized in that the shielding (3) has openings which are dimensioned such that the insects can not pass through the apertures and thus the
Reaching the other side of the shield member (3) located section of the open air area are prevented.
20. Device according to one of the preceding claims, characterized in that the shielding (3) has been treated with an insecticide polymer fibers.
21. A device according to any one of the preceding claims, characterized in that the insecticide comprises a pyrethroid, an organophosphorus compound and / or a carbamate and / or an insecticide with a sterilizing and / or growth regulating effect on insects.
22. Device according to one of the preceding claims, characterized in that the shielding (3) has a to UV radiation resistant material and / or a protective against UV rays material.
23. Use of a device according to one of the preceding claims, characterized in that the device is used for local and / or temporary protection of individual mensché, animals, tents and / or building, or a group thereof.
24. Use according to claim 23, characterized in that the site is within a bounded by a fence device outdoor region in which animals can move freely up to the enclosure device.
25. Use according to claim 23 or 24, characterized in that the device at resting places, feed and / or water bodies and / or at locations where an increased occurrence insects occurs, is used.
26. Use according to any one of claims 23 to 25, characterized in that it is carried out on a limited time interval that is shorter than a grazing season.
27. A method for applying an insecticide to a shield member (3) of a device according to one of claims 1, 2 or 5 to 9, characterized in that the insecticide (13) is arranged in the interior (11) of a microcapsule (10) which having its interior (11) surrounding the sheath (12).
28. The method according to claim 27, characterized in that the sleeve (12) is designed such that the insecticide (13) can reach the surface of the microcapsule (10).
29. The method of claim 27 or 28, characterized in that the microcapsule (10) communicates directly with its sheath (12) or are arranged by means of a to the sheath (12) bonding substance (14) to the shield member (3) of the device associated becomes.
PCT/EP2008/050297 2007-01-12 2008-01-11 Device for keeping away insects from an outdoor area section WO2008084100A3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE200710002657 DE102007002657A1 (en) 2007-01-12 2007-01-12 Device for keeping insects away from a section of an outdoor region is arranged within an outdoor region limited by a fencing structure
DE102007002658.9 2007-01-12
DE102007002657.0 2007-01-12
DE200710002658 DE102007002658A1 (en) 2007-01-12 2007-01-12 Device for keeping away insects from outdoor area section e.g. at quiescent places, fodder or water places, comprises shielding element, which has insecticide, which is transmitted to insects touching shielding element

Publications (2)

Publication Number Publication Date
WO2008084100A2 true true WO2008084100A2 (en) 2008-07-17
WO2008084100A3 true WO2008084100A3 (en) 2008-11-20

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ID=39609089

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056610A (en) * 1975-04-09 1977-11-01 Minnesota Mining And Manufacturing Company Microcapsule insecticide composition
US4765982A (en) * 1982-04-30 1988-08-23 Minnesota Mining And Manufacturing Company Insect control device
WO2001037662A1 (en) * 1999-11-25 2001-05-31 Dct Aps Composition for impregnation of fabrics and nettings
EP1411764B1 (en) * 2001-07-05 2004-12-29 Disease Control Textiles APS A fencing
WO2007103684A2 (en) * 2006-03-08 2007-09-13 Creeger Samuel M Pest control device and associated method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056610A (en) * 1975-04-09 1977-11-01 Minnesota Mining And Manufacturing Company Microcapsule insecticide composition
US4765982A (en) * 1982-04-30 1988-08-23 Minnesota Mining And Manufacturing Company Insect control device
WO2001037662A1 (en) * 1999-11-25 2001-05-31 Dct Aps Composition for impregnation of fabrics and nettings
EP1411764B1 (en) * 2001-07-05 2004-12-29 Disease Control Textiles APS A fencing
WO2007103684A2 (en) * 2006-03-08 2007-09-13 Creeger Samuel M Pest control device and associated method

Also Published As

Publication number Publication date Type
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