JPH04312505A - Insect pest expellent - Google Patents

Abstract

PURPOSE:To make it possible to efficiently take a required amount of insect pest expellent containing an insect juvenile hormone-like compound as an active ingredient in an insect pest body. CONSTITUTION:The objective liquid-like, gel-like, sheet-like or tape-like insect pest expellent containing 0.1-5wt.% insect juvenile hormone-like compound such as methoprene or hydroprene, 0.1-2.0 tacky agent having low tackiness such as polyvinyl pyrrolidone, liquid rubber emulsion, low-molecular weight polybutadiene, lowmolecular weight polybutadiene or low-molecular weight polybutene, 0-20wt.% sugar and 0-20wt.% protein and 0-0.1 pheromone and as necessary 0.5-10wt.% gelling agent and a residual amount of water. An active ingredient of insect pest expellent attached to male or female adult insect in such extent as not to restrict the behavior sterilizes male directly and simultaneously sterilizes female through male and further leads male to death to efficiently decrease each group of insect pest.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION The present invention relates to an agent for controlling pests such as cockroaches, ants, termites, flies, mosquitoes, butterflies, horseflies, mites, and fleas.

0002

BACKGROUND OF THE INVENTION Insect juvenile hormone (hereinafter abbreviated as JH) has the function of controlling insect metamorphosis together with molting hormone. Insects are most susceptible to JH during the last instar larval stage, when dramatic metamorphosis occurs from larva to pupa or from larva to adult. If excessive JH is given during this period, the pupa will die and the emergence of metamorphosed abnormal sugars will be inhibited. cause death. Therefore, J.
The idea of using synthetic compounds (hereinafter abbreviated as JHM) that have a similar effect to H and applying them to extermination of pests was born, and several JHMs are currently in practical use. On the other hand, chitin formation inhibitors are a group of compounds included in the category of insect growth regulators along with JHM. Chitin formation inhibitors are characterized by their action of inhibiting the synthesis of new cuticle during insect molting, leading to death, and have a completely different action from JHM. Both have completely new actions different from conventional insecticides, are relatively safe for mammals, and are specifically effective against insects, so they are considered to be representative insect growth regulators. It is often done.

The main effect of both of these insect growth regulators against pests is their larvicidal effect by inhibiting molting and metamorphosis, as mentioned above. In addition, it is known to have a sterile effect that reduces the reproductive ability of adult insects.

However, the methods of treating insect growth regulators currently in use are exactly the same as those of conventional insecticides (for example, for fly control, spraying on the surface of livestock feces,
In addition, when controlling cockroaches and fleas, the use of aerosol agents, smoke agents, residual spraying of liquid agents, etc.) These conventional insect growth control agents have no sterilizing effect on adult insect pests. I couldn't expect it to have any effect. This is due to the fact that in order for conventional insect growth control agents to have a sterile effect on adult insect pests, a large amount of the drug must be ingested into the pest, and that some conventional treatment methods also have a sterile effect. This is because it was impossible to get the necessary amount of medicine into the pests. Also, M
Asner et al. (1968), the sterility effect of insect growth control is high on females, but lower on males compared to conventional treatment methods using conventional insect growth regulators. could not be expected to have any effect on male adults.

[0005]

[Problems to be Solved by the Invention] In this way, the above-mentioned conventional technology effectively sterilizes adult insect pests, and also has an effect on not only female adults but also male adults, and has the effect on male adults as well, and does not allow mating with these insects. There is no drug that can make adult female insects sterile, and the challenge was to create a pest control agent that could incorporate enough insect juvenile hormone into the insect body to sterilize adult insects. .

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a pest control agent containing an insect juvenile hormone-like compound as an active ingredient, which imparts a predetermined adhesive property to the pest control agent. It contains a pressure-sensitive adhesive.

The above pest control agent contains 0.1-5% by weight of an insect juvenile hormone-like compound, 0.1-20% by weight of adhesive, 0-20% by weight of sugar, 0-20% by weight of protein, and 0% by weight of pheromone.
~0.1% by weight and the remaining components are used as water to make a liquid composition, or further add 0.5 to 10% by weight of a gelling agent to make a gelled composition, or in place of the above water content. A pest control agent can also be prepared by applying a composition in which the remaining amount is entirely an adhesive (54.9 to 99.9% by weight) to a sheet-like or tape-like base material.

[0008]

[Operation] When the pest control agent according to the present invention comes into contact with adult pest insects such as cockroaches, ants, termites, flies, mosquitoes, and fleas, it immediately applies its adhesive force to the surface of the insect's body to the extent that it does not impede the movement of the insect. By attaching a sufficient amount and penetrating into the body or ingesting it as food, the adult female will sterilize it, and the adult male will sterilize it by transmitting the above compound to the adult female that has mated with it. , which not only increases the number of individuals that have lost their ability to reproduce, but also causes the death of adult male insects themselves and shortens their lifespans, which ultimately leads to a decline in the pest population. It is.

That is, by contacting insect juvenile hormone-like compounds or ingesting them as food, adult female pest insects are rendered sterile and lose their ability to reproduce; This has two effects: it reduces the reproductive ability of the other side. In addition, male pest insects do not themselves become sterile by taking in the above-mentioned compounds, but female adult insects that mate with them become sterile, so it is possible to spread sterility to multiple females. moreover,
Adult male insects that have taken up the above compound may die or have a shorter lifespan compared to normal males, which is a new effect that has never been reported before.

0010

[Example] First, in this invention, insect juvenile hormone-like compounds used as active ingredients include dodecadienoate compounds, oxime ether compounds, pyridyl ether compounds, and carbamate compounds as shown in Table 1. Compounds, etc., and also include geometric isomers and optical isomers thereof.

[0011]

[Table 1]

[0012] Next, the amount of one or more pest control compounds selected from the group consisting of such pest control compounds depends on the type of compound and the type of target pest;
It is usually 0.1 to 5% by weight based on the total amount of poison bait.

[0013] The adhesive used in the present invention is an adhesive that is highly safe for humans and other animals, and has a predetermined adhesion property, that is, it does not adhere to the body surface of the insect's legs or the like to the extent that its movement cannot be prevented. Those having low tackiness to which the active ingredient can adhere are preferred.

[0014] Such low tackiness is determined by the ball tack test shown below. That is, the angle of inclination is 30
When a nickel ball (50g) is run up on a 100mm long non-adhesive surface on a 100mm long slope, and then rolled on the adhesive surface (adhesive coated surface), the distance from the time it enters the adhesive surface until it comes to rest is 30mm. The above conditions were set as the conditions for the above regulations.

Examples of adhesives satisfying the above conditions include polyethylene oxide, polyvinyl alcohol,
Polyvinylpyrrolidone, carboxyvinyl polymer, low molecular weight polyethylene (molecular weight 500 to 10,000, hereinafter the molecular weight is shown in parentheses), low molecular weight polypropylene (
600-11000), oligoester acrylate,
Polybutene (270-2350), liquid polybutadiene (500-5000), liquid rubber, liquid polychloroprene, liquid polysulfide, liquid polyisoprene, liquid polyisobutylene, liquid butyl rubber, petroleum resin (800)
~2000), dicyclopentadiene, low molecular weight polystyrene (30000~45000), polyhydroxypolyolefin (150~200), α-methylstyrene oligomer, vinyl acetate resin, acrylic resin, vinyl chloride resin, epoxy resin, and the like. The amount of such adhesive to be used is 0.1 to 20% by weight based on the total amount of the liquid or gel pest control agent, and 54.9 to 99% by weight when applied to a sheet or tape-like substrate. It is 9% by weight.

[0016] Examples of the sugar used in this invention include glucose, fructose, mannitol, starch sugar, D-sorbitol, sucrose, lactose, brown sugar, brown sugar, cane sugar, and brown sugar.

[0017] Furthermore, the proteins used in this invention include:
Examples include fish meal, skim milk, pupa meal, and meal of crustaceans such as krill, and the amount used is usually 0 to 20% by weight based on the total amount of the pest control agent.

[0018] Pheromones used in the present invention include sex pheromones and aggregation pheromones that are attractive to specific pest insects, such as tricosene, bombycol, lardrua, peripranone-A, ipsdienol, olean, japonylua, gossypurua, etc. Examples include, but are not limited to. The amount of these pheromones added is usually 0 to 0 based on the total amount of pest control agent.
．． It is 1% by weight.

The gelling agent used in this invention is as follows. Similar to the physical properties of the adhesive, in consideration of the possibility of accidental ingestion by humans or other animals, a harmless adhesive is suitable, such as dextran, xanthan gum, curdlan, pullulan, cycloamylose, tragacanth, pectin, or its derivatives, saponin, agar, alginic acid or its derivatives, lecithin, gelatin, casein, egg yolk, lanolin, cholesterin or its derivatives, carrageenan, guar gum or its derivatives, locust bean gum, karaya gum,
Gluten, starch or its derivatives, methylcellulose, carboxymethylcellulose, gum arabic, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, macrogol fatty acid ester, lauromacrogol, polyoxyethylene alkyl ether, polyoxyethylene alkyl ester , sodium polyacrylate derivatives, D-sorbitol benzaldehyde condensates or derivatives thereof, but are not limited thereto. Further, the amount of the gelling agent used is usually 0.5 to 10% by weight.

The sheet-like or tape-like base material to which the above-mentioned components are applied may be, for example, paper such as kraft paper, cardboard base paper, Japanese paper, textile fabric, polyolefin or other synthetic resin film, etc. Of course, when using the above-mentioned papers, they may be subjected to waterproof treatment such as waxing.

[0021] Furthermore, in the pest control agent of this invention,
Attraction methods or devices that use physical attractants such as light or sound waves at a range of wavelengths and frequencies, heat sources at a range of temperatures, carbon dioxide, dimethylamine, organic Attraction methods or devices that use feeding stimuli such as acids, higher alcohols, ammonium salts, food flavors, or chemical attractants such as attractants, as well as methods or devices that use chemical attractants such as acids, higher alcohols, ammonium salts, food flavorings, or even the source so that newly emerged adults come into contact with them. It is also possible to use a device such as an installed eclosion trap. In addition, the pest control agent according to the present invention can be easily used and can be applied to different types of pests by processing it into a formulation such as a liquid agent, paint agent, foam agent, gelling agent, sheet agent, or tape agent. Become something to do.

[0022] The appropriate amount of the above pest control agent for application treatment is not necessarily constant depending on the type of pest, but preferably 500 mg or more of the active ingredient per 1 m2, or 50 mg or more of the active ingredient per attracting device. Use as a guide.

Examples 1 to 5: Methoprene, pyriproxyfen, hydroprene, phenoxycarb or S-21149 as insect juvenile hormone-like compound, polyvinylpyrrolidone as adhesive, sucrose as sugar, sucrose fatty acid ester as dispersant , skim milk as a protein, tricosene as a fly sex pheromone, and water were blended in the proportions shown in Table 2 and mixed uniformly to prepare a liquid pest control agent.

[0024] In order to confirm the effectiveness of the pest control agent obtained, the reproduction suppressing effect and adult mortality rate were evaluated. The evaluation method is as follows.

[0025] Reproduction suppression effect and adult mortality rate: 3 after emergence
20 each of ~5-day-old unmated female or male adult houseflies
The head was placed in a 20 x 30 x 40 cm nylon cage along with water and food (skim milk), and the pest control agents of Examples 1 to 5 were placed in a container with an opening on the top and placed in the center of the floor of the cage. After one week, the adults were taken out (hereinafter referred to as treated adults), and for every treated male adult, one untreated (placed in a cage without pest control agent, the same applies hereinafter) female adult, or One treated female adult was paired with one untreated male adult, and the cages were placed in the same shape as above along with water and food, and the female adults in each section were then observed to spawn. The area in which neither sexes nor males came into contact with the pesticide was defined as the untreated area, and the suppression rate of 80% or more was obtained based on the degree of decrease in egg production in the treated area relative to the amount of eggs in the untreated area. + for suppression rate 70-80%, suppression rate 5
The case of 0 to 70% was expressed as ±, and the case of suppression rate of 50% or less was expressed as -. In addition, the adult mortality rate 20 days after treatment was 8.
++ if the mortality rate is 0% or more, ++ if the mortality rate is 70-80%
, the case where the mortality rate was 50-70% was expressed as ±, and the case where the mortality rate was 50% or less was expressed as -. The results are also listed in Table 2.

[0026]

[Table 2]

Comparative Examples 1 and 2: Using methoprene as the insect juvenile hormone-like compound and without adding an adhesive, Table 2
A liquid pest control agent was prepared by blending each component or only water in the proportions shown below.

The pest control agent thus obtained was subjected to the above-mentioned evaluation tests for its reproduction suppression effect and adult mortality rate, and the results are also listed in Table 2.

As is clear from the results in Table 2, compared to Comparative Examples 1 and 2 in which no adhesive was added, Examples 1 to 5
It was found that this species had excellent reproductive suppression effects, had a high mortality rate for adult males, and had a low mortality rate for sterile females.

Examples 6 and 7: Pyriproxyfen as insect juvenile hormone-like compound, liquid rubber emulsion as adhesive, brown sugar as sugar, krill powder as protein, tricosene as pheromone, carrageenan as gelling agent, surfactant As an agent, polyoxyethylene monooleate and water are blended in the proportions shown in Table 3,
The mixture was mixed uniformly to form a gel-like pest control agent.

The pest control agent thus obtained was subjected to the above-mentioned evaluation tests for its reproductive suppression effect and adult mortality rate, and the results are also listed in Table 3.

[0032]

[Table 3]

Comparative Example 3: Compounding ratios obtained by excluding adhesive, sugar, protein, and pheromone from the components of Examples 6 and 7 (Table 3)
) and mix it uniformly to make a gel-like pest control agent,
In addition, the same evaluation tests as in Examples 6 and 7 were conducted, and the results are also listed in Table 3.

As is clear from the results in Table 3, Comparative Example 3
Although these insecticides are gel-like and easily attract flies, increasing the chance of contact, they have low reproductive control effects and have a 5% adult mortality rate.
It was low, less than 0%. On the other hand, Examples 6 and 7, which were in the form of a gel containing an adhesive, showed excellent results in both the reproduction suppressing effect and the adult mortality rate (male).

Example 8: Pyriproxyfen as the insect juvenile hormone-like compound, low molecular weight polybutadiene and low molecular weight polybutene as the adhesive, cane sugar as the sugar,
Pupa powder as a protein and tricosene as a pheromone were blended in the proportions shown in Table 4, mixed uniformly, and applied at 50 g per 1 m 2 of a sheet-like substrate to obtain a sheet-like pest control agent.

The pest control agent thus obtained was subjected to the above-mentioned evaluation tests for its reproductive suppression effect and adult mortality rate, and the results are also listed in Table 4.

[0037]

[Table 4]

Comparative Example 4: A sheet-shaped pest control agent was produced in the same manner as in Example 8 except that highly adhesive polybutadiene and polybutene were used (see Table 4). In addition, the above-mentioned reproductive suppression effect and adult mortality rate were evaluated, and the results are also listed in Table 4.

[0039] From the results in Table 4, in Comparative Example 4 of the sheet-shaped pest control agent, excessive adhesiveness was applied, so house flies were trapped and unable to fly away, and the active ingredient was not transmitted to anything other than those with direct contact. Therefore, the effect is low. On the other hand, Example 8, in which an adhesive was added to obtain a predetermined adhesion, was produced in a sheet form and was found to have an excellent reproduction suppressing effect and a high adult mortality rate.

[0040]

[Effects] As is clear from the above, the pest control agent of the present invention has the ability to adhere to pests such as cockroaches, ants, termites, flies, mosquitoes, and fleas, and either takes them in as food or Or, it attaches a sufficient amount to the body surface of the insect that comes into contact with it, directly sterilizing the female adult, as well as sterilizing the female adult that has mated with it through the male adult, and then injecting the active ingredient into the female for the required period of time. By killing adult male insects after propagation, pest populations are extremely efficiently reduced. Therefore, it dramatically increases the efficiency of pest control agents containing insect juvenile hormone-like compounds as active ingredients.
It can be said that the significance of this invention is very large.

Claims (4)

[Claims] 1. A pest control agent containing an insect juvenile hormone-like compound as an active ingredient, characterized in that an adhesive is added to the pest control agent to impart predetermined adhesion. [Claim 2] Insect juvenile hormone-like compound 0.1-5
Weight%, adhesive 0.1-20% by weight, sugar 0-20% by weight
, protein 0-20% by weight, pheromone 0-0.1% by weight
and a liquid composition comprising water as the remaining component. [Claim 3] Insect juvenile hormone-like compound 0.1-5
Weight%, adhesive 0.1-20% by weight, sugar 0-20% by weight
, protein 0-20% by weight, pheromone 0-0.1% by weight
2. The pest control agent according to claim 1, comprising a gel composition comprising 0.5 to 10% by weight of a gelling agent and water as the remaining component. [Claim 4] Insect juvenile hormone-like compound 0.1-5
Weight %, sugar 0-20 weight %, protein 0-20 weight %, pheromone 0-0.1 weight % and adhesive 54.9-99
．． A pest control agent comprising a composition containing 9% by weight applied to a sheet-like or tape-like substrate.