JPH05112411A - Insecticide composition for agriculture and horticulture - Google Patents

Abstract

PURPOSE:To provide an agricultural and horticultural insecticide composition exhibiting an excellent arithmetic or synergistic insecticidal action against thrips palmi, an insect pest which is difficult to control and which is injurious against cucumbers, water melons, melons, eggplants, green peppers, etc. CONSTITUTION:An agricultural and horticultural insecticide composition exhibiting an excellent control effect not recognized by the employment of the individual single ingredients against thrips palmi contains (A) at least one selected from synthetic pyrethroids such as fenpropathrin, cyfluthrin, fluvalinate, tralomethrin, cyhalothrin, ethofenprox, flucythrinate, cypermethrin, permethrin and fenvalerate and (B) propargite in amounts of 1-1000ppm, preferably 10-200ppm and 3-1000ppm, preferably 100-400ppm, respectively, as active ingredients.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an agricultural and horticultural insecticide having excellent synergistic or synergistic insecticidal action on Thrips palmi thrips.

[0002]

BACKGROUND OF THE INVENTION Thrips thrips (Thrips)
palmi) is an invading pest from Southeast Asia, has no major natural enemies, and in recent years has caused a great deal of damage to various vegetables such as cucumber, watermelon, melon, eggplant, and green pepper in Japan. It is said that there are no pests that cause pollution. Traditionally for the control of Thrips palmi thrulphos, oxamyl, carbosulfan, cypermethrin,
Benfuracarb, BPMC, DMTP, diflubenzuron and the like are used, but all have insufficient control effects, and development of pesticides having high control effects is desired.

[0003]

The object of the present invention is to provide an agricultural and horticultural insecticidal composition having a high control effect against the difficult-to-control pests such as cucumber, watermelon, melon, eggplant, and green pepper. is there.

[0004]

The present invention is an agricultural and horticultural insecticidal composition comprising at least one synthetic pyrethroid insecticidal compound and propargite as active ingredients. Examples of the synthetic pyrethroid insecticidal compound which is one of the active ingredients of the insecticidal composition of the present invention include fenpropatorin, cyfluthrin, fluvalinate, tralomethrin, cyhalothrin, etofenprox, flucitrinate, cypermethril, permethrin and fenvalerate. Can be mentioned.

The dose used in the insecticidal composition of the present invention is propargite 3 to 1000 ppm, preferably 100.
~ 400ppm and synthetic pyrethroid insecticidal compounds 1-10
The amount is 00 ppm, preferably 10 to 200 ppm.

[0006] Propargit, which is an active ingredient of the insecticidal composition of the present invention, shows almost no effect against Thrips palmi thrombosis alone. In addition, the synthetic pyrethroid insecticidal compound, which is one of the active ingredients, alone is not sufficiently effective even for cypermethrin, which has been registered as an agricultural chemical against Thrips palmi thrips. The insecticidal composition of the present invention exerted an excellent controlling effect which was not observed with each single agent.

In order to carry out the present invention, as shown in the examples below, a conventional pesticide form containing propargite and a synthetic pyrethroid insecticide, that is, a wettable powder, an emulsion,
It is carried out by manufacturing a drug such as dry flowable, flowable, smoker, etc., or by mixing separately formulated drugs and further mixing them.

[0008]

EXAMPLES Next, the present invention will be specifically described with reference to examples. Example 1. Wettable powder Propargit 30 parts Tralomethrin 1 part White carbon (silica) 2 parts Diatomaceous earth 58 parts Sodium alkylbenzene sulfonate 2 parts Sodium lignin sulfonate 7 parts Evenly mix the above and finely pulverize the active ingredient 31% active ingredient Got

Example 2. Emulsion Propargit 30 parts Tralomethrin 1 part Xylene 44 parts Dimethylformamide 15 parts Calcium axybenzenesulfonate 4 parts Polyoxyethylene alkylphenyl ether 6 parts The above ingredients were mixed and melted to obtain an emulsion containing 31% of the active ingredient.

[0010]

【The invention's effect】

Test Example 1. Test against Thrips palmi Thraustoides Propargit (BPPS) and a synthetic pyrethroid insecticide compound are mixed with a single planted eggplant seedling (cultivar Kuroyo) with a plant height of 20 to 30 cm in which many thrips thrips are grown in greenhouses. The wettable powder was diluted with water to the concentration shown in Table 1 and sprayed in a sufficient amount with a small shoulder sprayer so that the drug solution drips from the leaves. The number of adults and larvae of Thrips palmi Thrips were measured and measured at a predetermined number of days before and after the drug was sprayed, and the effects of the test reagents were compared and compared when they were used alone. The results are shown in Table 1.

[0011]

[Table 1]

Test Example 2. Test for Thrips palmi Thrombosis The effect of a mixed preparation of propargit (BPPS) and a synthetic pyrethroid insecticide compound on Thrips palmi thrombosis was examined in the same manner as in Test Example 1 except that a mixed emulsion was used. The results are shown in Table 2.

[0013]

[Table 2]

Claims (1)

[Claims] 1. An agricultural and horticultural insecticidal composition comprising at least one synthetic pyrethroid insecticidal compound and propargite as active ingredients.