KR19990067444A - Insecticides Based on Cyclic Polysiloxanes - Google Patents

Abstract

The present invention relates to an immediate acting pest control composition based on cyclic polysiloxanes which can be used without residues and without sustained action.

Description

Insecticides Based on Cyclic Polysiloxanes

It is known that cyclic polysiloxanes having 4 and 5 siloxane units act as pesticides. It is also known that insects can be controlled by spraying with polysiloxanes (US-P 4 654 328).

However, problems occur during use at runtime. Cyclic polysiloxanes having four siloxane units crystallize at temperatures below about 18 ° C. and can no longer be sprayed without problems. Such unsatisfactory action is because cyclic polysiloxanes are sprayed on insects with an average droplet size of 50μ from the aerosol nebulizer.

The present invention relates to an immediate acting pest control composition based on cyclic polysiloxanes which can be used without residues and without sustained action.

The present invention therefore relates to the following mixtures and compositions:

1. Immediate action, based on cyclic polysiloxanes of formula (1), which can be used without residues and without sustaining action, sprayed onto pests by conventional means with an average droplet size in the spray mist of 130 to 500 microns (diameter) Insecticide and acaricide composition

(One)

In the above formula,

R represents the same or different radicals selected from the group consisting of methyl, ethyl and propyl,

n represents the integer of 3-6.

2. The composition according to item 1, wherein the composition containing the compound having an index n of 5 as a component of the formula (1).

3. The component of formula (1) having indexes 4 and 5

n = 4 <85% (weight)

cyclic polysiloxane mixtures of formula (1), characterized in that they are present in a weight ratio of n = 5> 15% (weight)

(One)

In the above formula,

R represents the same or different radicals selected from the group consisting of methyl, ethyl and propyl,

n represents the integer of 3-6.

4. The compound of formula (1) having the index 4 and 5,

n = 4 85-50 wt%

n = 5 15-50 weight percent

A mixture characterized in that it is present in the weight ratio of.

5. The component of formula (1) having the index 4 and 5,

n = 4 80-60 wt%

n = 5 20-40 wt%

A mixture characterized in that it is present in the weight ratio of.

6. The component of formula (1) having the index 4 and 5,

n = 4 75 weight percent

n = 5 25 weight%

A mixture characterized in that it is present in the weight ratio of.

The composition according to the invention has significant advantages in practical use. The action of the composition against pests begins immediately. That is, the user can directly see the result of the successful relief. The active compound is brought into direct contact with pests only and no pretreatment (residual) is possible. The composition is used only for precise attack and only directly for the pest to be controlled. That is, no preliminary and unnecessary excess amount of active compound spreads to the surroundings.

Beneficial organisms can be protected by controlled use. The active compound is nontoxic to plants, mammals and humans.

The active compound evaporates rapidly from the affected surface (such as plants, furniture, walls, windows, etc.) without leaving residue behind.

This active compound decomposes abioticly in a short time by the action of light.

The compositions according to the invention are suitable for the control of animal pests, preferably arthropods, especially insects and arachnids, which are those which appear in the fields of agriculture, forestry, stored products and materials, and hygiene. The composition acts on pest species with moderate sensitivity and resistance, and on all or part of the stage of development of the pest.

The pests mentioned above are:

Isopoda neck, for example Oniscus asellus, Armadillidium vulgare and Porcellio scaber.

From the order of Diloplopoda, for example Blaniulus guttulatus.

From the neck of Chilopoda, for example, Geophilus carpophagus and Scutigera spec.

From the order of the symphyla, for example Scutigerella immaculata.

From the order of Thysanura, for example, Lepisma saccharina.

The neck of Collembola, for example Onychiurus armatus.

From the order of Orthoptera, for example, Blata orientalis, Periplaneta americana, Leucophaea maderae, Blatella germanica, Ah Keta Domestikus, Gryllotalpa spp., Locusta migratoria migratorioides, Melanoplus differentialis and Systoser Schistocerca gregaria.

From the order of the dermaptera, for example Porficula auricularia.

Termite Isoptera, for example Reticulitermes spp.

Anoplura, for example Pediculus humanus corporis, Haematopinus spp. And Linognathus spp.

Allophaga, for example Trichodectes spp. And Damalinea spp.

From the order of the Thysanoptera, for example, Hercinothrips femoralis and Tripps tabaci.

From the order of Heteroptera, for example Eurygaster spp., Dysdercus intermedius, Piesma quadrata, Cimex lectularius, Rodney Rhodnius prolixus and Triatoma spp.

The cicada (Homoptera), for example Aleurodes brassicae, Bemisia tabaci, Trialeurodes vaporariorum, Apis gossypii, Brevicoryne brassicae, Cryptomyzus ribis, Apis fabae, Apis pomi, Eriosoma lanigerum, hyaloptherus arun Hyniopterus arundinis, Phylloxera vastatrix, Pemphigus spp., Macrosiphum avenae, Myzus spp., Phodondon humuli, Rhopalosiphum padi, Empoasca spp., Eucelis bilobatus, Nephotettix cincticeps, Lecanium corni ), Cicetia olerea (Saissetia oleae), Laodelphax striatellus, Nilaparvata lugens, Aonidiella aurantii, Aspidiotus hederae, Pseudococcus spp. And Psylla spp.

The order of the Lepidoptera, such as Pectinophora gossypiella, Bupalus piniarius, Cheimatobia brumata, Lithocolletis blancardella, Hyponomeuta padella, Flutella maculipennis, Malacosoma neustria, Euroctis chrysorrhoea, Lymantria spp. , Buculatrix thurberiella, Phyllocnistis citrella, Agrotis spp., Euxoa spp., Feltia spp., Et al. Earias insulana, Heliothis spp., Laphygma exigua, Mamestra brassicae, Panolis flammea, Pro Prodenia litura, Spodoptera spp., Trichoplusia ni, Carpocapsa pomonella, Pieris spp., Chilo subspecies ( Chilo spp.), Pyrausta nubilalis, Ephestia kuehniella, Galleria mellonella, Tineola bisselliella, Tynea pelionella Tinea pellionella, Hofmannophila pseudospretella, Cacoacia podana, Capua reticulana, Choristoneura fumiferana, Clichy am herma Clysia ambiguella, Homona magnanima, and Tortrix viridana.

The order of the Coleoptera, for example, Anobium punctatum, Rhizopertha dominica, Bruchidius obtectus, Acanthoscelides obtectus , Hylotrupes bajulus, Agelastica alni, Leptinotarsa decemlineata, Phaedon cochleariae, Diabrotica spp. .), Psylliodes chrysocephala, Epilachna varivestis, Atomaria spp., Oryzaephilus surinamensis, Antoninomus subspecies (Anthonomus spp.), Sitophilus spp., Otiorrhynchus sulcatus, Cosmopolites sordidus, Cerrophyllus assimilus (Ce uthorrhynchus assimilis, Hypera postica, Dermestes spp., Trogoderma spp., Antrenus spp., Athenus spp. ., Lyctus spp., Meligethes aeneus, Ptinus spp., Niptus hololeucus, Gibbium psylloides ), Tribolium spp., Tenebrio molitor, Agriotes spp., Conoderus spp., Melontalon melolontha, Amphimalon solstitialis and Costelitra zealandica.

From the order of the Hymenoptera, for example Diprion spp., Hoplocampa spp., Lasius spp., Monomorium pharaonis and Vespa subspecies ( Vespa spp.).

Diptera, for example Aedes spp., Anopheles spp., Culex spp., Drosophila melanogaster, Musca subspecies ( Musca spp.), Fannia spp., Califora erythrocephala, Lucilia spp., Chrysomyia spp., Cuterebra spp. ), Gastrophilus spp., Hippobosca spp., Stomoxys spp., Oestrus spp., Hypoderma spp. , Tabanus spp., Tannia spp., Bibio hortulanus, Oscinella frit, Porbia spp., Pegomina hyosquiami (Pegomyia hyoscyami), Ceratitis capitata, Dacus oleae and Tipula paludo Tipula paludosa.

From the tree of Siphonaptera, for example Xenopsylla cheopis and Ceratophyllus spp.

Arachnida, for example Scorpio maurus and Latrodectus mactans.

The order of the ticks Acarina, for example, Acarus siro, Argas spp., Ornithodoros spp., Deermanyssus gallinae, Eriopies libis (Eriophyes ribis), Phyllocoptruta oleivora, Bophylus spp., Ripicephalus spp., Amblomma spp., Hyalomma spp. .), Ixodes spp., Psoroptes spp., Chorioptes spp., Sarcoptes spp., Tarsonemus spp. ), Bryobia praetiosa, Panonicus spp. And Tetranychus spp.

The composition is suitable for controlling animal pests such as arthropods, preferably insects and arachnids, present in productive animals, breeding animals, zoo animals, laboratory and test animals and pets in animal care and animal breeding, Have moderate toxicity to animals The composition acts on all or part of the stage of development of the pest and against pest species with tolerance and moderate sensitivity.

The pest is:

Anoplura, for example Haematopinus spp., Linognathus spp., Solenopotes spp., Pediculus spp. And Pthirus spp .;

Molophaga, for example Trimenopon spp., Menopon spp., Eomenacanthus spp., Menacanthus spp., Tree Trichoctes subspecies (Trichodectes spp.), Felicola spp., Damaliane spp. And Bobiola subspecies;

Diptera, for example Chrysops spp., Tabanus spp., Musca spp., Hydrotaea spp., Muskina subspecies (Muscina spp.), Haematobosca spp., Haematobia spp., Stomoxys spp., Pannia spp., Glossina subspecies ( Glossina spp.), Lucilia spp., Califora spp., Auchmeromyia spp., Cardylobia spp., Cochiomyia spp. ), Chrysomyia dpp., Sarcophaga spp., Wolfartia spp., Gaserophilus spp., Oesteromyia spp. ), Oedemagena spp., Hypoderma spp., Oestrus spp., Rinoestrus subspecies pp.), Melophagus spp. and Hippobosca spp .;

From the order of Siphonaptera, for example Ctenocephalides spp., Echidnophaga spp. And Ceratophyllus spp .;

From the tree of Metastigmata, for example, hyalomma subspecies (Hyalomma spp.), Lipicephalus spp., Boophilus spp., Ambyomma spp. Haemophysalis spp., Dermacentor spp., Ixodes spp., Argas spp., Ornithodorus spp. And Autobius subspecies ( Otobius spp.);

The order of Mesastigmata, for example Dermayssus spp., Ornithonyssus spp. And Pneumonyssus spp .;

From the order of Prostigmata, for example, Cheyletiella spp., Psorergates spp., Myobia spp., Demdex spp. And Neorombicula subspecies (Neotrombicula spp.).

The domestic and productive animals include, for example, mammals such as cattle, sheep, goats, horses, pigs, dogs, cats, camels, buffaloes, donkeys, rabbits, fallow deer, reindeer, Fur animals such as mink, chinchillas and raccoons and birds such as chickens, turkeys, pheasants, geese and ducks.

Such laboratory and test animals include, for example, mice, mice, guinea pigs, golden hamsters, dogs and cats, and the like.

Such pets include, for example, dogs and cats.

The composition according to the invention can be used particularly preferably in closed rooms such as floors, holes and the like. The composition is particularly suitable for controlling animal pests and annoying pests occurring at home.

In this connection, in particular flies, mosquitoes, long-horned wasps, ants, wheels and bites may be mentioned.

Formula (1) provides a general definition of cyclic polysiloxanes.

Particular preference is given to compounds of the formula (1) in which R represents methyl and n represents 4 and 5.

Particular mention may be made of cyclic polysiloxane octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane and mixtures with one another and with cyclic polysiloxanes which are naturally contained therein in the preparation.

As already mentioned, the composition according to the invention is sprayed directly onto the pest or annoying animal to be controlled. This is done by conventional methods using pump sprayers, aerosol sprayers and spraying and spraying devices.

The essential condition for successful treatment is that the average droplet size of the active compound mist is 130-500μ (diameter). The droplet size distribution is between 100-700 μ, with 90% of all droplets smaller than 600 μ. Spraying and dispensing devices should be configured to ensure this droplet size.

This droplet size only ensures that the pest is affected by normal manipulation of the active compound (sprayed from a distance of 20-100 cm away). For example, it has been found that spraying the active compound to an average droplet size of less than 80 μm at a distance of 60 cm has no effect on the fly.

Preference is given to a distribution of droplet sizes of 150-500μ, where 90% of all droplets are less than 420μ. This corresponds to droplet sizes of 160-300μ.

Decamethylcyclopentasiloxane is particularly suitable as active compound and drug. The active compound is stable at low temperatures without crystallization and is therefore easy to store and use.

It is used especially when low temperature stability is important and rapid residue-free evaporation of the active compound is not important.

A mixture of octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane is particularly preferred when the content of pentasiloxane exceeds 15% (weight). Such mixtures have the advantage of having good stability against crystallization at low temperatures and a rapid residue-glass evaporation action of the mixture from the affected surfaces. Such mixtures are therefore particularly suitable for home use.

Cyclic polysiloxanes in the compositions according to the invention are particularly preferably used as such, without further addition as solvents.

However, it may be easy to add conventional additives such as solvents, surfactants and perfume oils to the composition.

Example A

Test with Paris (Musca Domestica)-spray method

Test Animals: Adult Musca domestica, Reichswald strain (face resistance)

Solvent: Unused

To make the proper formulation, 25 parts of decamethylcyclopentasiloxane were mixed with 75 parts of octamethylcyclotetrasiloxane.

100 ml of active compound formulation is transferred to a spray bottle with a nozzle diameter. A 10.8 cm diameter iron disk disk is inserted into the PP container (Ø 9.7 cm, H 8 cm) (by bending downward hemisphere). 20 flies are stunned with CO ₂ and transferred to the iron net. The vessel is covered with a second iron bent upwards and kept at room temperature for 30 minutes until all flies resume normal activity. The vessel is held horizontally at a distance of 15 cm from the spray portion of the spray bottle. The spray lever is operated three times, all allowing 3 ml of the preparation active compound to be sprayed into the fly. Then, open the lid of the container again.

One minute later, flies died 100%.

Example B

Musca domestica / Stomoxys calcitrans

(Experimental treatment under normal conditions in pig cages)

Experiments were performed in pig cages. All drove 6 animals into 3 messy cages. 50-100 flies per one animal sat.

Way:

The formulations described in Example A were applied without dilution under pressure of 4.5 mbar. (Nozzle: Holder series nozzle "Merkur" of brass having a swirl body and a nozzle hole of 1.5 mm: spray angle of about 65 °). Spray pressure was adjusted through a breathing air bottle.

Sprayed only in pig cages with many flies (Musca Domestica and Stomoksis Calcitrance). 30-50 g of formulation per m 2 was applied.

The wet flies, affected by the spray mist, remained on the ground or stuck to the wall or animal immediately after treatment. No regeneration was observed. Musca Domestica and Stomoxis calcitance were affected by spraying the composition in the same manner.

Example C

The formulations described in Example A were applied without dilution using various spraying and spraying devices (see Table 1) to two stable stalls of flies (musca domestica) (5,000-10,000 per room).

apply Musca domestica Spraying apparatus according to example B with a pressure of 4-5 bar, fine nozzle ++ ULV (ROFA) - Cold Mist (Microjet) -

++ = excellent action-= no action

The ropa apparatus is used for ULV application and has the characteristic of dispersing a specific formulation into very fine droplets (5-30 mu). Even when sprayed on animals for a relatively long time, the fine droplets are insufficient for proper operation.

The same applies to the cold mist device “Microjet”, which disperses the material to an average droplet size of less than 80 μ.

Testing with the apparatus described in Example B showed the results described again. Flies affected directly by the droplets died within 15 minutes.

After about 15 minutes, the spray coating was no longer detected in the wall (masonry rock).

Example D

Plants sprayed with aphids were sprayed using a pressure spraying device. Aphids affected by the spray mist were able to detach from the plants within 5 minutes of treatment and were not rediscovered.

Claims (6)

An immediate acting insecticide, which can be used without residues and without sustaining action, in which the cyclic polysiloxane of formula (1) is sprayed onto the pest in a conventional manner with an average droplet size in the spray mist of 130 to 500 microns (diameter); and Acaricide Compositions: (One) In the above formula R represents the same or different radicals selected from the group consisting of methyl, ethyl and propyl, n represents the integer of 3-6. The composition according to claim 1, which contains, as a component of formula (1), a compound having index n of 5 mainly. The component of formula (1) having indexes 4 and 5 n = 4 <85% (weight) a cyclic polysiloxane mixture of formula (1) characterized in that it is present in a weight ratio of n = 5> 15% (weight): (One) In the above formula R represents the same or different radicals selected from the group consisting of methyl, ethyl and propyl, n represents the integer of 3-6. 4. The component of formula (1) according to claim 3, wherein the components of formula (1) having indices 4 and 5 n = 4 85-50 wt% n = 5 15-50 weight percent A mixture characterized in that it is present in the weight ratio of. 4. The component of formula (1) according to claim 3, wherein the components of formula (1) having indices 4 and 5 n = 4 80-60 wt% n = 5 20-40 wt% A mixture characterized in that it is present in the weight ratio of. 4. The component of formula (1) according to claim 3, wherein the components of formula (1) having indices 4 and 5 n = 4 75 weight percent n = 5 25 weight% A mixture characterized in that it is present in the weight ratio of.