JPH05301801A - Pest control resin composition and molded article thereof - Google Patents

Abstract

(57) [Summary] [Structure] A pest control resin composition in which an insect growth control agent is supported on a synthetic resin, and a pest control resin molded product obtained by processing the pest control resin composition, more preferably, further attracting pests. A resin molded body for controlling pests having a color that changes. [Effect] The resin molding for controlling pests of the present invention is
Amounts of medicinal effects that are effective over a long period of time against agricultural pests such as cockroaches and other insect pests such as diamondback moth, whitefly, and white thrips are retained on the surface. It is also a method that can be controlled arbitrarily, and it can be used properly according to the environmental conditions such as the type of pest, location, etc., and the application method is not the conventional direct spraying method, but the method is to set it in the living environment of the pest. Therefore, the consumption of the chemicals is extremely small, the environmental impact is small and it is very advantageous, and it can be applied to various control chemicals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pest-controlling resin composition and a molded article thereof for sterilizing pests to reduce the habitat density of the pests and reduce damage by the pests.

[0002]

2. Description of the Related Art Heretofore, insecticides have been sprayed in order to control harmful insects, but excessive spraying has a problem of environmental pollution and influence on sprayers. .. Although a pheromone trap may be used as a method for controlling pests without spraying chemicals, it has not been widely used as a general control method, and the development of a more efficient method for attracting and controlling pests has been developed. Was wanted.

[0003]

DISCLOSURE OF THE INVENTION As a result of intensive studies in view of the above problems, the present inventors have found that a synthetic resin composition obtained by heating and kneading an insect growth-controlling agent or a resin molded product obtained by molding and processing the same. By using, it has been found that the pest control can be carried out efficiently, and further, the pest control resin molded product obtained by molding the pest control resin composition of the present invention containing a dye for attracting pests. However, they have also found that they exhibit more excellent effects, and have reached the present invention. That is, the present invention is a pest control resin composition containing an insect growth control agent and a pest control resin molded product obtained by processing the same, more preferably for pest control having a color that further attracts pests. A resin molding is provided.

Examples of the synthetic resin used in the present invention include polyolefin resins such as polyethylene and polypropylene, polyamide resins such as nylon, polyester resins, ethylene-acrylate copolymer resins, ethylene-methacrylate copolymer resins, ethylene-vinyl acetate copolymers. Polymerization resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyisoprene rubber, styrene-butadiene rubber, ethylene-propylene rubber, polyurethane and the like can be mentioned.

Examples of the insect growth regulator used in the present invention include various agents capable of sterilizing insect pests, specifically, juvenile hormone active compounds and chitin synthesis inhibitors. Examples of the juvenile hormone active compound include 4-phenoxyphenyl 2- (2-
Pyridyloxy) propyl ether [pyriproxyfen], ethyl 2- (4-phenoxyphenoxy) ethyl carbamate [phenoxycarb], isopropyl 11-methoxy-3,7,11-trimethyl-2,
4-dodecadienoate [mesoprene], 4-chloro-
2- (2-chloro-2-methylpropyl) -5- (6-
Iodo-3-pyridylmethoxy) pyridazine-3 (2
H) -one.

Further, examples of chitin synthesis inhibitors include 1- (4-chlorophenyl) -3- (2,6-difluorobenzoyl) urea [diflubenzuron], 1-
[3,5-Dichloro-4- (3-chloro-5-trifluoromethylpyridin-2-yloxy) phenyl] -3
-(2,6-difluorobenzoyl) urea [chlorfluazuron], 1- (3,5-dichloro-2,4-difluorophenyl) -3- (2,6-difluorobenzoyl) urea [teflubenzuron], 1 -(4-Trifluoromethoxyphenyl) -3- (2-chlorobenzoyl) urea [triflumuron], 1- [4- (2-chloro-4-trifluoromethylphenoxy) -2-fluorophenyl] -3- ( 2,6-difluorobenzoyl)
Urea [Flufenoxuron], 1- [α- (4-chloro-α-cyclopropylbenzylideneaminooxy)-
p-tolyl] -3- (2,6-difluorobenzoyl)
Urea [Flucycloxuron], 1- [3,5-Dichloro-4- (1,1,2,2-tetrafluoroethoxy)
Phenyl] -3- (2,6-difluorobenzoyl) urea [hexaflumuron], 1- [2-fluoro-4-
(1,1,2,2-tetrafluoroethoxy) phenyl] -3- (2,6-difluorobenzoyl) urea,
Benzoylurea compounds such as 1- (2-fluoro-4-trifluoromethylphenyl) -3- (2,6-difluorobenzoyl) urea and 2-tert-butylimino-3-isopropyl-5-phenyl-3,4. 5,6
-Tetrahydro-2H-1,3,5-thiadiazine-4
-On.

The pest-controlling resin molding of the present invention preferably has a color that attracts pests, and it is usually possible to add a dye to achieve the purpose. The dye used in the present invention may be any one as long as it emits a color that attracts pests harmful to crops, and is usually yellow to blue. Here, yellow to blue means colors such as yellow, yellow-green, green, turquoise, and blue that correspond to wavelengths of reflected rays of about 578 nm to about 430 nm. In particular, Whitefly whitefly, Tobacco whitefly,
Yellow leafhoppers, yellow tea thrips, thrips thrips, thrips thrips, velvetleaf, and fruit fly are yellow, and diamondback moth is yellow to green, which is very efficient at attracting. In addition, Thrips palmi can attract blue or white, and onion fly can attract blue or yellow.

In the present invention, the main target of control is agricultural pest-damaging insects, and specific examples thereof include Trialeurodes vaporariorum , whitefly white (Bemisia tabaci) , and leafhopper leafhopper ( Arbori).
dia apicalis ), Hemiptera pests such as aphids, Thrips palmi , Thrips palmi ( Scirtothrips dorsalis) , Hirazu thistle <br/> Pest insects (Frankliniella intonsa ) , Icemon Diceli
(Parnara guttata) lepidopteran pests such as, melon fly (Dac
us cucurbitae) , mushroom flies ( Mycetophilidae ), bean leaf fly ( Liriomyza trifolii ), onion fly
(Delia antiqua ) and other dipteran pests.
Needless to say, it is also effective against hygienic pests such as flies, mosquitoes and cockroaches.

The content of the insect growth regulator used in the present invention is usually 0.05 to 10 in the pest control resin composition.
The content of the pigment is usually 0.1 to 5% by weight in the pest control resin composition. The pest control resin molded article of the present invention is a synthetic resin insect growth control agent, if necessary,
Dyes that attract pests, heat-kneading the pest-controlling resin composition to which other additives have been added in advance to obtain a pelletized masterbatch, and using this, for example, an injection molding machine, an ordinary molding machine such as an extruder. As described below, it can be molded into various forms such as a film, a sheet, a net-shaped molded product, a rod-shaped molded product, a flowerpot, a horticultural support, and an agricultural and horticultural product such as a gauze. A pest control film can be obtained by molding a synthetic resin composition containing an insect growth regulator in an amount of 0.05 to 10% by weight into a film having a thickness of 0.02 mm or more and less than 0.5 mm. A sheet for controlling pests can be obtained by molding a synthetic resin composition containing 0.05 to 10% by weight of an insect growth regulator into a sheet having a thickness of 0.5 mm or more and less than 5 mm. By molding a synthetic resin composition containing an insect growth controlling agent in an amount of 0.05 to 10% by weight into a net having a fiber diameter of 0.05 to less than 5 mm, a pest control resin molded article can be obtained.

The pest control material of the present invention obtained as described above is used for controlling pests that damage agricultural crops such as sugar beet, cotton, flowers, tea, fruit trees, mushrooms, etc. Depending on the type and the degree of damage, the appropriate amount is usually applied at the appropriate intervals by the following methods.
That is, in the vicinity of the growing point of the upper part of the plant, horizontally to the ground, and the surface of the pesticide is horizontal or vertical to the ground, a method of installing it at any place between the growing point of the plant and the plant origin. , Horizontal to the ground and the surface of the pesticide horizontal or vertical to the ground, the top of the plant,
Or from the center to the ground vertically, that is, vertically downward, how to install the plant on the ground, how to install it on a flat surface such as a wall near the place to grow the plant, grow the plant A method of installing a control material molded in the shape of any agricultural material used in the case of a method similar to that of the agricultural material, in a cultivated place in a closed space such as a greenhouse, pests existing outside, in the closed space There is a method of installing a pest control material at a passing point that can pass through in the process of invading or a place that can be a passing route. The application rate of the control material used at that time is the type of insect growth control agent, the time of application, the place of application, the method of application, the type of harmful insects,
Although it depends on the degree of damage and the like, it is usually 1 to 5000 g, and preferably 10 to 500 g per hectare in terms of insect growth control agent.

[0011]

EFFECTS OF THE INVENTION The resin molding for controlling pests of the present invention is a drug amount showing a long-term medicinal effect against hygienic pests such as flies, mosquitoes, cockroaches, and agricultural pests such as diamondback moth, whitefly, and thrips thrips. Is retained on the surface, and the surface bleeding amount of the insect growth regulator can be controlled arbitrarily, and it can be used properly according to the environmental conditions such as the type and location of the pest, and the application Since the method is not a conventional direct spraying method but a method of setting it in the living environment of pests, the consumption of chemicals is extremely small, it is very advantageous because it has little impact on the environment and can be applied to various control chemicals. It is possible.

[0012]

The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto.

Example 1 Polyethylene resin (Sumikasen manufactured by Sumitomo Chemical Co., Ltd.)
1 part by weight of pyriproxyfen, which is a juvenile hormone-like compound, is kneaded with 99 parts by weight of a registered trademark) by a pressure kneader and then pelletized. The pellets were extruded at 160 to 180 ° C. by an inflation film manufacturing apparatus to obtain a film of 0.05 mm. Table 1 shows the results of tracing the surface concentration of pyriproxyfen and the residual amount in the resin of this film over time.

Example 2 Polyethylene resin (Sumikasen manufactured by Sumitomo Chemical Co., Ltd.)
1 part by weight of pyriproxyfen, which is a juvenile hormone-like compound, is kneaded with 99 parts by weight of a registered trademark) by a pressure kneader and then pelletized. The pellets were extruded by an inflation film manufacturing apparatus at 160 to 180 ° C. to obtain a 0.1 mm film. Table 1 shows the results of tracing the surface concentration of pyriproxyfen and the residual amount in the resin of this film over time.

Example 3 Polyethylene resin (Sumikasen manufactured by Sumitomo Chemical Co., Ltd.)
1 part by weight of pyriproxyfen, which is a juvenile hormone-like compound, is kneaded with 99 parts by weight of a registered trademark) by a pressure kneader and then pelletized. Extrude the pellets at 160-180 ° C with an extruder equipped with a T-type die 1
A sheet with a thickness of mm was obtained. Table 1 shows the results of tracing the surface concentration of pyriproxyfen on this sheet and the amount remaining in the resin over time.

Example 4 Ethylene-vinyl acetate copolymer resin (Sumitomo Chemical Co., Ltd.)
1 part by weight of pyriproxyfen, which is a juvenile hormone-like compound, was kneaded with 99 parts by weight of Evatate (registered trademark) by a pressure kneader, and then pelletized. Using an inflation film manufacturing machine with this pellet, 160 ~
It was extruded at 180 ° C. to obtain a 0.1 mm film. Table 1 shows the results of tracing the surface concentration of pyriproxyfen and the residual amount in the resin of this film over time.

Example 5 Ethylene-vinyl acetate copolymer resin (Sumitomo Chemical Co., Ltd.)
1 part by weight of pyriproxyfen, which is a juvenile hormone-like compound, was kneaded with 99 parts by weight of Evatate (registered trademark) by a pressure kneader, and then pelletized. 160-180 by an extruder equipped with a T-die using this pellet
A sheet having a thickness of 1 mm was extruded at ℃. Table 1 shows the results of tracing the surface concentration of pyriproxyfen on this sheet and the amount remaining in the resin over time.

Example 6 Polyethylene resin (Sumikasen manufactured by Sumitomo Chemical Co., Ltd.)
(Registered trademark) 98 parts by weight of juvenile hormone-like compound 1 part by weight of pyriproxyfen and polyethylene yellow coloring color masterbatch (SPEM manufactured by Sumika Color Co., Ltd.)
305: Contains 12% of pigment) 1 part by weight is kneaded with a pressure kneader and then pelletized. Extrude 1 mm at 160-180 ℃ with an extruder equipped with a T-die using this pellet.
A thick sheet was obtained. Table 1 shows the results of tracing the surface concentration of pyriproxyfen on this sheet and the amount remaining in the resin over time.

Example 7 Polyethylene resin (Sumikasen manufactured by Sumitomo Chemical Co., Ltd.)
(Registered trademark) 97 parts by weight of juvenile hormone-like compound 1 part by weight of pyriproxyfen and polyethylene yellow coloring color masterbatch (SPEM manufactured by Sumika Color Co., Ltd.)
305: containing 12% of pigment) 1 part by weight and 1 part by weight of rapeseed oil, which is an edible oil, are kneaded with a pressure kneader and then pelletized. Using the pellets, an extruder equipped with a T-die was used to obtain a 1 mm thick sheet extruded at 160 to 180 ° C. Table 1 shows the results of tracing the surface concentration of pyriproxyfen and the residual amount in the resin of this sheet over time.

[0020]

[Table 1]

Test Example 1 According to Example 6, a pest control material using pyriproxyfen as an insect growth control agent was adjusted to a size of 15 cm × 15 cm, and 45 cm of a container (80 cm × 112 cm) in which on whitefly whitefly parasitic tomato was planted. It was installed at the height. On the other hand, as a control, a yellow sheet containing no insect growth regulator was placed in the same manner as the pest control material. On a given day, the number of adult whitefly whitefly infested with tomato was counted. The average value per cup is shown in Table 2.

[0022]

[Table 2]

Test Example 2 In the same manner as in Test Example 1, the effect on whitefly was investigated. The results are shown in Table 3.

[0024]

[Table 3]

Test Example 3 Soil was laid on the bottom of a 70 × 35 × 35 cm glass water tank, and three cucumber seedlings infested with Thrips palmi thrombus were planted in the center. After 3 days, in accordance with Example 6, pyriproxyfen was used as an insect growth regulator, and a blue color masterbatch (SPEM 510 manufactured by Sumika Color Co., Ltd. containing 12% of pigment) was used instead of the yellow color masterbatch.
The pest control material using was prepared in a size of 15 cm × 15 cm, and placed at a height of 5 cm from the soil surface. On the other hand, as a control, a blue sheet containing no insect growth regulator was placed in the same manner as the pest control material, and the same test was conducted. The number of adults of Thrips palmi Thrips parasitizing cucumber was counted on a predetermined day. The test was conducted in a room at 28 ± 1 ° C.
The results are shown in Table 4.

[0026]

[Table 4]

Test Example 4 Pyriproxyfen was dissolved in cottonseed oil to obtain 15 cm × 15 cm.
Coated yellow film, absorbed, pyriproxyfen content each 5.3 mg / cm ^2, prepared 2.7 mg / cm ^2, pest control material 0.5 mg / cm ^2, nylon mesh cages (30 cm × 3
It was installed on one wall (0 cm x 30 cm). On the other hand, a potted kidney bean was placed in the center of the cage, adult whitefly white taboo was released, and eggs were laid 48 hours later, and the hatching inhibitory effect was investigated. The results are shown in Table 5.

[0028]

[Table 5]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Noriyoshi Kasamatsu Inventor Noriyoshi Kasamatsu 636-2 Shionoyama, Kishiro-cho, Kasai City, Hyogo Prefecture Sumitomo Chemical Co., Ltd. (72) Takehiro Kanai Shiono, Kishiro-cho, Kasai City, Hyogo Prefecture Mountain 636-2 Sumitomo Chemical Co., Ltd.

Claims (11)

[Claims] 1. A resin composition for controlling insect pests, which comprises an insect growth regulator. 2. A pest control resin composition comprising a pest-attracting pigment and an insect growth regulator. 3. A pest-controlling resin molding, which comprises molding the pest-controlling resin composition according to claim 1 or 2. 4. The pest-controlling resin composition or the pest-controlling resin molded article according to claim 2, wherein the pest-attracting dye is yellow to blue. 5. The pest-controlling resin molding according to claim 3 or 4, wherein the resin molding is a film, a sheet or a net. 6. A pest control resin molding, which comprises molding a synthetic resin composition containing an insect growth regulator in an amount of 0.05 to 10% by weight into a film having a thickness of 0.02 mm or more and less than 0.5 mm. 7. A pest-controlling resin molding, comprising molding a synthetic resin composition containing an insect growth regulator in an amount of 0.05 to 10% by weight into a sheet having a thickness of 0.5 mm or more and less than 5 mm. 8. A synthetic resin composition containing 0.05 to 10% by weight of an insect growth regulator is molded to give a fiber diameter of 0.05.
A resin molded body for controlling pests, characterized by being processed into a net shape of mm to less than 5 mm. 9. A pest-controlling resin molded article, characterized by molding a synthetic resin composition containing 0.05 to 10% by weight of an insect growth regulator into an agricultural and horticultural material. 10. The pest control resin molding according to claim 6, wherein the synthetic resin composition further contains a yellow to blue dye in an amount of 0.1 to 5% by weight. 11. The insect pest control resin composition or pest control according to claim 1, wherein the insect growth regulator is 4-phenoxyphenyl 2- (2-pyridyloxy) propyl ether. Resin molding.