Composition and method for preventing and removing pests

Abstract

The invention relates to a composition and method for preventing and removing pests, and particularly relates to a composition and method for preventing and removing pests, capable of preventing and controlling various underground pests and soil diseases effectively and simultaneously. The composition for preventing and controlling pests is characterized by containing active components and an adjuvant, wherein the active components are a pesticide chlorpyrifos and a bacteriacide captan and the weight ratio of chlorpyrifos to captan is (50:1)-(1:50), and the active components, namely chlorpyrifos and captan, account for 5-80wt% of the composition. In the method for preventing and removing pests, chlorpyrifos and captan act on pests at the same time, or any one of chlorpyrifos and captan isused to act on the pests at first and then the other one is used to act on the pests.

Description

[0001] technical field

[0002] The pest control composition and pest control method of the present invention relate to a pest control composition and pest control method that can effectively control various underground pests and soil diseases at the same time. Background technique

[0003] Chlorpyrifos (chlorpyrifos), chemical name 0,0-diethyl-0 (3,3,6-trichloro-2-pyridyl) phosphorothioate, is an acetylcholinesterase inhibitor, belonging to the phosphorothioate class of killing Insecticide with contact killing, stomach killing and fumigation effects. Stem and leaf spray can be used to control rice planthoppers, rice leaf rollers, rice stem borers, citrus tree scale insects, cruciferous vegetables Spodoptera litura, wheat aphids, etc. The residual period on the leaves is not long, but the residual period in the soil is longer, and the control effect on underground pests is good.

[0004] Captan, a broad-spectrum organosulfur fungicide, has both protective and therapeutic ef...

Examples

Embodiment 1

[0037] Embodiment 1: 11% chlorpyrifos+captan suspension

[0038] Chlorpyrifos 2%

[0039] Captan 9%

[0040] Sodium methylnaphthalenesulfonate formaldehyde condensate 10%

[0041] Xanthan Gum 1%

[0042] Bentonite 1%

[0043] Glycerol 5%

[0044] Water to make up to 100%

[0045] The active ingredient, dispersant, wetting agent, water and other components are uniformly mixed according to the proportion of the formula, and the 11% chlorpyrifos + captan suspension is obtained after grinding and / or high-speed shearing.

Embodiment 2

[0046] Example 2 15% chlorpyrifos+captan wettable powder

[0047] Chlorpyrifos 7.5%

[0048] Captan 7.5%

[0049] Sodium Lauryl Sulfate 2%

[0050] Sodium lignosulfonate 5%

[0051] Silica 10%

[0052] Kaolin supplemented to 100%

[0053] The active ingredient, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by an ultra-fine pulverizer, 15% chlorpyrifos + captan wettable powder can be obtained.

Embodiment 3

[0054] Embodiment 3 20% chlorpyrifos+captan aqueous emulsion

[0055] Chlorpyrifos 1.25%

[0056] Captan 18.75%

[0057] N-Methylpyrrolidone 15%

[0058] Calcium dodecylbenzenesulfonate 5%

[0059] Farm milk 600# 5%

[0060] Water to make up to 100%

[0061] Add the original drug, solvent, and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to obtain a water phase; mix the oil phase with the water phase under high-speed stirring to obtain 20% chlorpyrifos + Captan water emulsion.

[0001] technical field

[0002] The pest control composition and pest control method of the present invention relate to a pest control composition and pest control method that can effectively control various underground pests and soil diseases at the same time. Background technique

[0003] Chlorpyrifos (chlorpyrifos), chemical name 0,0-diethyl-0 (3,3,6-trichloro-2-pyridyl) phosphorothioate, is an acetylcholinesterase inhibitor, belonging to the phosphorothioate class of killing Insecticide with contact killing, stomach killing and fumigation effects. Stem and leaf spray can be used to control rice planthoppers, rice leaf rollers, rice stem borers, citrus tree scale insects, cruciferous vegetables Spodoptera litura, wheat aphids, etc. The residual period on the leaves is not long, but the residual period in the soil is longer, and the control effect on underground pests is good.

[0004] Captan, a broad-spectrum organosulfur fungicide, has both protective and therapeutic ef...

Examples

Embodiment 1

[0037] Embodiment 1: 11% chlorpyrifos+captan suspension

[0038] Chlorpyrifos 2%

[0039] Captan 9%

[0040] Sodium methylnaphthalenesulfonate formaldehyde condensate 10%

[0041] Xanthan Gum 1%

[0042] Bentonite 1%

[0043] Glycerol 5%

[0044] Water to make up to 100%

[0045] The active ingredient, dispersant, wetting agent, water and other components are uniformly mixed according to the proportion of the formula, and the 11% chlorpyrifos + captan suspension is obtained after grinding and / or high-speed shearing.

Embodiment 2

[0046] Example 2 15% chlorpyrifos+captan wettable powder

[0047] Chlorpyrifos 7.5%

[0048] Captan 7.5%

[0049] Sodium Lauryl Sulfate 2%

[0050] Sodium lignosulfonate 5%

[0051] Silica 10%

[0052] Kaolin supplemented to 100%

[0053] The active ingredient, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by an ultra-fine pulverizer, 15% chlorpyrifos + captan wettable powder can be obtained.

Embodiment 3

[0054] Embodiment 3 20% chlorpyrifos+captan aqueous emulsion

[0055] Chlorpyrifos 1.25%

[0056] Captan 18.75%

[0057] N-Methylpyrrolidone 15%

[0058] Calcium dodecylbenzenesulfonate 5%

[0059] Farm milk 600# 5%

[0060] Water to make up to 100%

[0061] Add the original drug, solvent, and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to obtain a water phase; mix the oil phase with the water phase under high-speed stirring to obtain 20% chlorpyrifos + Captan water emulsion.

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