JP2015074616A - Pesticide of platydemus manokwari, and pest control tool of platydemus manokwari using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pesticide of Platydemus manokwari, capable of pest control of Platydemus manokwari with a lower environmental load, suitable for conservation of land snails, which are not to be exterminated; and a pest control tool of Platydemus manokwari using the same.SOLUTION: The pesticide of Platydemus manokwari includes at least any one of terpinene-4-ol and terpineol as pest control component. The pest control tool of Platydemus manokwari uses the same.

Description

  The present invention relates to a control agent suitable for New Guinea crickets, which are specific exotic organisms, and a control tool using the same. In the present invention, “control” means having at least either a repellent performance or an insecticidal performance against New Guinea crickets, which are target organisms. The “control agent” is a drug having at least either repellent performance or insecticidal performance against the target organism, and the “controlling tool” is at least either repellent performance or insecticidal performance against the target organism. The thing which has.

  Changes in the distribution of conventional organisms have occurred due to the impact of global warming, which has become remarkable in recent years, and the introduction of alien species for the purpose of controlling specific pests. Under these circumstances, native species may be exterminated and extinct by exotic species, which is a serious problem that can lead to the destruction of biological diversity.

New Guinea crickets have been actively introduced in various countries for the purpose of controlling specific pests, but since then they have preyed on a variety of land snails that have caused them to become extinct.
In Japan as well, various land snails are preyed on by the New Guinea crickets and endangered in the Ogasawara Islands.

Attempts have been made to control New Guinea crickets, and for example, there have been attempts to introduce pyrethroid insecticides and the like that are effective for a wide variety of species.
However, such insecticides are not only suitable for controlling New Guinea crickets, but also affect land shellfish, and are not suitable for securing a safe habitat for the land shellfish. There was a situation where effective control could not be performed.

  On the other hand, it contains one or more compounds selected from the group consisting of salicylic acid derivatives as active ingredients as pest control agents targeting annelid populations and flat animal populations centered on yamavir, A pest control agent characterized by adding terpenes is known (for example, see Patent Document 1).

JP 2012-97061 A

  According to the above-mentioned Patent Document 1, a salicylic acid derivative is a main component as a control agent that is particularly safe for the human body, and the control is performed mainly with Yamavir. Patent Document 1 also describes that terpenes are further added to reduce the environmental burden.

  However, salicylic acid derivatives, such as salicylic acid and methyl salicylate, which are the basis of the invention disclosed in Patent Document 1 above, have high toxicity to the human body but have certain toxicity. For this reason, it is necessary to secure a safe habitat for other species, but it cannot be said that it has sufficient safety performance from the viewpoint of the influence on the other species. In addition, there are a wide variety of terpenes that are generally widely contained in essential oils, and some have repellent effects on small organisms such as insects, but the effect varies depending on the species. .

In particular, control of New Guinea crickets is required. However, as described above, if land snails that should be protected are in a state of being similarly controlled, the original purpose cannot be achieved.
For this reason, it is necessary to protect land snails to be protected and to control New Guinea crickets.

  Furthermore, such control needs to be effective in harsh outdoor environments, and is required to be able to exhibit the control effect stably over a longer period.

  The present invention has been made in view of the above circumstances, has a low environmental burden, has a stable control effect over a long period of time outdoors, and is particularly suitable for control of New Guinea crickets. An object of the present invention is to provide a control agent that can protect a shell without killing the shell and a control tool using the control agent.

  The present invention uses, as a means for solving the above problems, a control agent for New Guinea crickets characterized in that at least either terpinen-4-ol or terpineol is used as a control component.

  Further, the present invention provides a New Guinea bitterworm control agent characterized by having terpinene-4-ol and terpineol as control components on the premise of the New Guinea bitter rotifer control agent. This means.

  Moreover, this invention makes the control agent which contains mint oil in a control component on the premise of the structure of one of the said inventions as a means for solving the said subject.

  Further, the present invention provides, as a means for solving the above problems, a control agent for New Guinea crickets characterized by containing a viscosity modifier on the premise of any one of the above-mentioned constitutions.

  Further, the present invention is a holding material in which the pulp board material layer and the nonwoven fabric layer are overlapped with the pulp board material as the surface side, and each layer of the holding material is impregnated with any of the above New Guinea cricket control agents. Thus, a control tool for New Guinea crickets characterized in that the holding material is covered with a breathable synthetic resin film to be integrated is used as a means for solving the above problems.

  According to the invention of claim 1, terpinen-4-ol or terpineneol, which is a natural component, can be obtained by using a control agent for New Guinea cricket worms that contain either terpinene-4-ol or terpineol as a control component. Terpineol can repel or kill insects of New Guinea crickets with extremely high efficiency, and does not kill terrestrial shells to be protected, and aims to secure a safe habitat for terrestrial shellfish be able to.

  Furthermore, by using terpinen-4-ol or terpineol as the main component, it has low volatility compared to other terpenes such as pinene, limonene, myrcene, etc. and has stability against ultraviolet rays contained in sunlight. By utilizing it, it is possible to exhibit sustained release and to be used for a long time outdoors.

  Moreover, according to the invention which concerns on Claim 2, in addition to having the effect of the said invention of this application, it was set as the control component which mixed both terpinen-4-ol and terpineol, By this, resistance of New Guinea cricket worm is more Can be expected to be difficult. Moreover, since these control components are composed only of naturally-derived components, they can be used that do not adversely affect soil, trees, and the like.

  Further, according to the invention according to claim 3, in addition to the above-described configuration, it is possible to repel or kill insects of New Guinea crickets by natural components by using a control agent containing mint oil as a control component, Efficacy and sustained release can be controlled.

  Further, according to the invention according to claim 4, on the basis of the configuration of the invention described above, the controlled release property of the control component is controlled by using the control agent for New Guinea crickets containing a viscosity modifier. And can be used stably for a longer period of time.

  Moreover, according to the invention which concerns on this 5th aspect, it is set as the holding material which made the pulp board material the surface side, and the said pulp board material layer and the nonwoven fabric layer were overlapped, The control agent of any of the said New Guinea biting beetle Since the holding material is impregnated in each layer and the holding material is covered with a breathable synthetic resin film and integrated, it is possible to control the release of the control agent when used outdoors. Stable use can be made possible over a period of time.

  In particular, by making the pulp plate material the surface side, when performing the coating construction with the breathable synthetic resin film, the pulp plate material having a shape stability higher than that of the nonwoven fabric and the breathable synthetic resin film are brought into a close contact state. Because it can be coated, this can greatly reduce air accumulation and effectively maintain the controlled release control of the control component on the surface side that the New Guinea crickets that are being controlled will crawl. Can do.

BRIEF DESCRIPTION OF THE DRAWINGS (a) Front view and (b) The longitudinal cross-sectional view which show the prevention tool which concerns on Example 1 of this invention.

  Examples of the present invention are shown below. In addition, this invention is not limited to what is shown in the following Example. First, the following control agents are shown as control agents according to examples of the present invention.

  The control agent for New Guinea crickets according to Example 1 is a mixture of terpinen-4-ol and terpineol which is effective as a control component in the same manner as terpinen-4-ol. The mixing weight ratio (terpinen-4-ol: terpineol) of the control components in this example is about 3: 7.

The mixing weight ratio of terpinen-4-ol and terpineol in the present invention is 9: 1 to 1: 9, more preferably 3: 7 to 1: 9, so that a good control effect against New Guinea crickets can be obtained. And appropriate sustained release control performance.
If the ratio of terpineol is smaller than the mixing weight ratio 3: 7, the odor becomes stronger, which is not preferable when used near a place where people frequently enter or where it resides. That is, when the mixing weight ratio of terpinene-4-ol and terpineol is 3: 7 to 1: 9, there is almost no odor, and it is possible to achieve both good control effect and appropriate sustained release control performance. It will be very good.

  On the other hand, when the weight ratio of terpinene-4-ol and terpineol is outside the range of 9: 1 to 1: 9, that is, when the weight ratio of any one is less than 1, appropriate sustained release control cannot be performed. . In addition, inhibition of resistance acquisition is difficult.

The control agent for New Guinea crickets according to Example 2 of the present invention is a control agent mainly composed of terpinen-4-ol, which is also mixed with mint oil which is also effective as a control agent.
The mixing weight ratio (terpinen-4-ol: mint oil) of the control agent in Example 2 is about 7: 3.

By controlling the mixing weight ratio of terpinen-4-ol and mint oil in the present invention to 9: 1 to 1: 9, more preferably 5: 5 to 9: 1, good control against New Guinea crickets It is possible to achieve both an effect and appropriate sustained release control performance.
When terpinen-4-ol is less than 5: 5 in the same mixing weight ratio, the transpiration rate increases and the duration of efficacy is shortened, which is not preferable. For this reason, when the mixing weight ratio of terpinen-4-ol and mint oil is 5: 5 to 9: 1, sufficient efficacy can be sustained while achieving both good control effect and appropriate controlled release control performance. Time can be secured.

  On the other hand, when the weight ratio of terpinen-4-ol and mint oil is outside the range of 9: 1 to 1: 9, that is, when the weight ratio of either one is less than 1, appropriate sustained release control can be performed. Absent. In addition, inhibition of resistance acquisition is difficult. When the weight ratio of terpinen-4-ol is less than 1, the transpiration speed by mint oil is large and it is not suitable for use.

(Test 1) Control test for New Guinea crickets A test for controlling New Guinea crickets was performed below. Terpinen-4-ol, terpineol, mint oil, diet, menthic glycerin acetal, and p-menthane-3,8-diol were used as control test components.
Each of the above control test components is impregnated into the rope at a ratio of 0.9 ml per 45 cm of rope, and the rope is attached with a double-sided tape over the entire circumference of the upper edge of the inner wall of the plastic container opened at the top. The kitchen paper which absorbed moisture was put in and 5 normal individuals of New Guinea crickets were released into each container.
An attempt is made to control an individual of New Guinea crickets using a control test component that volatilizes from the rope. The experiment was terminated when the New Guinea crickets escaped from the container, and the time to escape was measured, and the state of the individual and the repellent effect when there was no escape were also observed.
In addition, the moisture-absorbed kitchen paper is used to prevent drying of individuals of New Guinea crickets and to eliminate death factors other than the control agent.

The results of the control test are shown below.

  As shown above, a control effect was obtained in terpinen-4-ol, terpineol and mint oil, respectively.

  The control agent for New Guinea crickets according to Example 3 of the present invention is a terpinen-4-ol to terpineol weight ratio of 1: 9, and a viscosity modifier is added thereto. In this example, hydroxypropylcellulose is added as a viscosity modifier so that the content is 2.0% by weight. The viscosity modifier can suppress the transpiration of the control component, and can obtain an effect of exhibiting sustained release over a longer period.

By adding the cellulose thickener added as a viscosity modifier in the range of 1.0 wt% to 6.0 wt%, moderate sustained release and uniform permeability to holding means such as nonwoven fabric Can be secured.
On the other hand, when the addition amount of the cellulosic thickener is less than 1.0% by weight, the suppression of transpiration is insufficient, and the penetrability of the drug is observed, but depending on the installation place horizontally or vertically Since a liquid pool is generated, it is not suitable. On the other hand, when the addition amount of the cellulose-based thickener exceeds 6.0% by weight, the viscosity is too high and the permeability is greatly reduced, so that it is not suitable.

  The viscosity modifier according to Example 3 is a cellulose thickener. As the cellulose-based thickener, hydroxypropylcellulose is used. However, the present invention is not limited to the hydroxypropylcellulose, and other cellulose-based thickeners such as hydroxyethylcellulose can also be used.

  The control agent for New Guinea crickets according to Example 4 of the present invention is a mixture weight ratio of terpinen-4-ol and mint oil of 7: 3, to which a viscosity modifier is added. In this example, a cellulose-based thickener is added as a viscosity modifier so that the content is 4.5% by weight. The viscosity modifier can suppress the transpiration of the control component, and can obtain an effect of exhibiting sustained release over a longer period.

  In Example 4, by setting the content in the range of 3.0% by weight to 8.0% by weight, moderate sustained release and uniform permeability to the holding means such as the nonwoven fabric can be ensured. In addition, when the amount of hydroxypropylcellulose added is less than 3.0% by weight, the suppression of transpiration is insufficient, and although the permeability of the drug is recognized, the liquid pool is depending on the installation place arranged horizontally or vertically. This is not suitable. Similarly to Example 3, when the added amount of hydroxypropyl cellulose exceeds 8.0% by weight, the viscosity is too high and the permeability is greatly reduced, which is not suitable.

  In Example 4, a larger amount was added than in Example 3, but the mixed liquid of terpinen-4-ol and mint oil was a mixed liquid of terpinen-4-ol and terpineol according to Example 3. This is because the viscosity is lower than this.

  Next, the Example in the New Guinea biting beetle control device 1 of this invention is shown as Example 5 and Example 6 below. From the viewpoint of acquiring resistance to the control agent of New Guinea crickets, it is thought that the acquisition of resistance can be delayed by mixing multiple control ingredients, so the above good repellent The control component which demonstrated the performance, ie, terpinen-4-ol, terpineol, and mint oil is mixed as an option and used.

  Here, as described above, the New Guinea cricket worm control device 1 of the present invention not only exhibits the effect of the control component, but also needs to be effective in a harsh outdoor environment. In addition, it is required that the control effect can be stably exhibited over a long period of time, and further, it is necessary that the native shellfish to be protected are not killed.

As shown in FIG. 1, the New Guinea cricket control device 1 according to the fifth embodiment has a width of about 14 cm, a length of 90 cm, and a thickness of about 22 mm. The said control tool 1 makes the pulp board material 11 the upper side (front side), makes it the holding material which laminated | stacked the nonwoven fabric layer 10 and the pulp board material 11, impregnates this holding material with 500g of control agents of Example 3, The film is integrally coated with a low-density polyethylene film 12 having a thickness of 0.05 mm, which is a breathable synthetic resin film. The film 12 made of low density polyethylene has a slight air permeability.
By arranging the pulp plate material on the front side, when performing the coating with the low-density polyethylene film 12, the pulp plate material having a shape stability higher than that of the nonwoven fabric 10 and the low-density polyethylene film 12 are covered in a close contact state. can do. Thereby, generation | occurrence | production of wrinkles etc. becomes difficult to produce between the low density polyethylene film 12 and a pulp board | plate material, and generation | occurrence | production of an air pocket can be reduced significantly.

  Further, the New Guinea cricket control device 1 according to Example 6 has a width of about 14 cm, a length of 75 cm, and a thickness of about 15 mm. The control tool 1 impregnates 400 g of the control agent of Example 4 with respect to the holding material provided with the nonwoven fabric layer 10 having a thickness of about 22 mm in contact with the lower surface of the pulp board material layer 11 as the front side. The film is integrally coated with a low density polyethylene film 12 having a thickness of 0.05 mm.

  In the control device 1 according to Example 5 and Example 6 shown in the above configuration, the control agent impregnated in the nonwoven fabric and the pulp plate material is volatilized through the air holes formed in the sustained-release film 12, and the control is performed. The efficacy of the agent is demonstrated. Since the nonwoven fabric and the pulp board material are impregnated with an amount of the control agent that can be impregnated, and are tightly coated with the sustained-release film 12, the control agent can be retained even by outdoor rain, etc. The control effect can be exhibited over 2 months to 3 months).

  In addition, like the said Example, impregnation of the control agent to a nonwoven fabric and a pulp board material closes one cylindrical opening, puts the sustained release film 12 into a bag shape, puts a nonwoven fabric and a pulp board material in this, It is good also as a structure which closed the other opening after inject | pouring a chemical | medical agent, and can also coat | cover with the sustained release film 12 in the state which impregnated the nonwoven fabric and the pulp board | plate material beforehand with the control agent.

  The control device 1 of the present invention is not limited to the shape and size disclosed in the fifth and sixth embodiments, and can be freely set as long as it does not exceed the object range of the present invention.

(Test 2)
A permeability test was conducted on the polyethylene film 12 as a monoterpene control component.
A low-density polyethylene film 12 having a thickness of 0.025 mm is formed into a bag shape 4 cm long and 4 cm wide, containing 1 g of each control component (essential oil), allowed to stand at room temperature, weighed every elapsed day, and made of polyethylene. The permeability of the film 12 was confirmed.
The results are shown below.

  From the above, terpinen-4-ol and terpineol are suitable for keeping the sustained release property high, and the mint oil has a slightly inferior result in the sustained release property.

(Test 3)
The confirmation test about the control effect with respect to New Guinea crickets of the sample (control tool) which has the following mixed control components was done.
Sample 1: terpinen-4-ol / terpineol admixture: (corresponding to Example 5)
Sample 2: Terpinen-4-ol mint oil mixture: (corresponding to Example 6)
Test method: Samples 1 and 2 were placed in a cylindrical shape on a plastic tray.
In the area surrounded by repellents, 10 New Guinea crickets were released.
The experiment was terminated when the New Guinea crayfish deviated from the container, and the time until it escaped was measured.

Result: Neither sample 1 nor sample 2 escaped.
Sample 1 was confirmed to have 2 individuals in contact with the control device 1, but all individuals died after 120 minutes. In Sample 2, all individuals died after 10 minutes without touching the control device 1.

  Conclusion: Based on the above, a sufficient control effect is observed between sample 1 and sample 2 by adding mint oil or terpineol to terpinen-4-ol.

(Test 4)
The confirmation test about the control effect with respect to Uskawamaimai (land shellfish) of the sample (control tool) which has the following mixed control components was conducted.
Sample 1: terpinen-4-ol / terpineol admixture: (corresponding to Example 5)
Sample 2: Terpinen-4-ol mint oil mixture: (corresponding to Example 6)
Test method: Samples 1 and 2 were placed in a cylindrical shape on a plastic tray. Also, a plastic plate was used as a blank to stand upright. In each area, 5 Usukawa Maimai were released. Observation was conducted for 24 hours from the start of the experiment to confirm the escape situation and effects.

Result: Both sample 1 and sample 2 were confirmed to have a repelling behavior that contracted the antenna when in contact. No individual climbing on the control device 1 was confirmed. On the other hand, in the blank, all individuals escaped after 4 hours.
Survival of all individuals was confirmed after 24 hours. After the experiment, Uskawamaimai was bred for 1 week, but no individual died.

  Conclusion: Although a repellent effect was observed for the control device 1 corresponding to Examples 5 and 6, there was no effect even when exposed to the control device 1 for 24 hours. In the easy outdoors, the impact on land shellfish is considered to be small.

  In Examples 5 and 6, the nonwoven fabric layer 10 accommodated in the low density polyethylene film and the two-layer structure in which the pulp plate material is overlapped, the present invention is not limited to this example, for example, A three-layer structure in which a pulp plate material is sandwiched between nonwoven fabrics and impregnated with a control agent can also be used.

  In addition, the amount of the control agent 4 impregnated into the holding material of the control tool 1 in the present invention is arbitrarily set according to the amount of the chemical released by the controlled release control, the size of the holding material, the surface area of the upper surface, and the like. Can do.

  In this example, the breathable synthetic resin film is a low-density polyethylene film, but the present invention is not limited to this, and the breathable synthetic resin film is made of various synthetic resin films capable of transmitting a certain amount of gas. For example, a low density calcium carbonate-containing polyethylene film or the like that includes an inorganic substance in part is also included.

DESCRIPTION OF SYMBOLS 1 Control tool 10 Nonwoven fabric layer 11 Pulp board material layer 12 Film 4 Control agent

Claims (5)

  A control agent for New Guinea crickets characterized in that at least terpinene-4-ol or terpineol is used as a control component.   The terpinen-4-ol and terpineol are contained, The control agent of the New Guinea cricket mushroom of Claim 1 characterized by the above-mentioned.   The control agent for New Guinea crickets according to claim 1 or 2, characterized in that mint oil is used as a control ingredient.   4. A control agent for New Guinea crickets according to claim 1, 2 or 3, characterized in that it contains a viscosity modifier. With the pulp plate material as the surface side, the pulp plate material layer and the nonwoven fabric layer are superposed on each other, and each layer of the holding material is impregnated with the control agent according to claim 1, 2, 3, or 4, A pest control tool for crickets, characterized in that the holding material is integrally covered with a breathable synthetic resin film.

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