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Compound insecticide containing silafluofen and chlorpyrifos

A technology of flusalthrin and chlorpyrifos, which is applied in the field of compound insecticides containing flusalthrin and chlorpyrifos, can solve the problems of high cost of rice planthoppers, high risk of resistance of rice pests to chlorpyrifos, and few alternative varieties, etc. To achieve the effect of reducing the dosage, improving the control effect and long-lasting effect

Active Publication Date: 2012-05-23
JIANGSU LVDUN PLANT PROTECTION AGROCHEM EXPERIMENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chlorpyrifos is a phosphorothioate insecticide, which has contact killing, stomach poisoning and fumigation effects, and has good control effects on lepidopteran pests, planthoppers, leafhoppers, armyworms, aphids, etc. The cost of rice planthoppers is high, and pollution-free rice production, there are few alternatives to highly toxic pesticides, and there is bound to be a situation of continuous and relay use of pesticides, and the risk of resistance of rice pests to chlorpyrifos is relatively high

Method used

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  • Compound insecticide containing silafluofen and chlorpyrifos
  • Compound insecticide containing silafluofen and chlorpyrifos

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 6

[0015] Two kinds of single agents were mixed according to the ratio (active ingredient) of flusalate and chlorpyrifos of 4:1, 1:1, 1:2, 1:4, and 1:6 respectively to form a binary compound as Example 1 ~Example 5, carry out indoor bioassay synergism. The test agents were flusalthrin (produced by Jiangsu Yangnong Chemical Group Co., Ltd.), chlorpyrifos (produced by Jiangsu Lvdun Plant Protection Pesticide Experiment Co., Ltd.); the test insects were 2-3 instar nymphs of brown planthopper. Take a certain amount of flusalthrin and the former drug of chlorpyrifos, make 1000ppm mother liquor with acetone and emulsifier Triton X100 (0.1%), and two kinds of single agents are prepared according to the ratio of above-mentioned embodiment 1~embodiment 6 respectively Dilute into 5 concentrations of binary compound agent, 1000ppm flusalthrin mother liquor, and 1000ppm chlorpyrifos mother liquor with water respectively, and use clear water treatment as blank control; adopt seedling soaking ...

Embodiment 6

[0020] Prepare 35% flusalthrin · chlorpyrifos emulsifiable concentrate, the weight ratio of each component is:

[0021] Fluthrin (active ingredient) 7%

[0022] Chlorpyrifos (active ingredient) 28%

[0023] Farm Milk 0206 8%

[0024] QK-10 5%

[0025] Ethanol 3%

[0026] Xylene Balance

[0027] First add 7% flusalthrin and 28% chlorpyrifos into the blending pot, then add Nongru 8% 0206 and 5% QK-10, and finally add solvent ethanol and xylene, and stir for 30 minutes to prepare 35% Flusilicate Chlorpyrifos EC.

Embodiment 7

[0029] Field drug efficacy test, tested drug species: 40% chlorpyrifos emulsifiable concentrate, 5% flusalthrin emulsifiable concentrate, 35% chlorpyrifos flusalthrin emulsifiable concentrate (configured according to Example 6), at the peak period of adult SBPH in early June Apply pesticides at a dosage of 50 kg per mu, spray evenly, and treat 20 square meters per treatment, repeat three times, investigate the population base of S. striatellus before and 1 and 3 days after spraying, calculate the control effect and analyze the significance of the difference.

[0030] The test results show (Table 2), 1 day after the drug, the control effects of 35% flusalate chlorpyrifos EC per mu of 60 milliliters, 80 milliliters and 100 milliliters on adults of SBPH were 82.59%, 90.74%, 95.78% respectively , wherein 80 milliliters of 35% flusalthrin · chlorpyrifos emulsifiable concentrate, 100 milliliters process and the control effect (92.51%) of contrast agent 5% flusalthrin emulsifiable con...

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Abstract

The invention belongs to the technical field of chemical pest control, and relates to a compound insecticide which contains silafluofen and chlorpyrifos, and is used for controlling rice hoppers. The effective ingredients of the compound insecticide which contains the silafluofen and the chlorpyrifos are silafluofen and chlorpyrifos, the weight ratio of which in a preparation is 4:1-1:6. The compound insecticide is an emulsifiable concentrate, or wettable powder, or a water emulsion, or a microemulsion, which is formed by the mixing of the effective ingredients and a conventional additive. Compared with the conventional rice hopper insecticides, the compound insecticide can significantly improve control effect, replace high toxic pesticides, reduce dosage, environmental pollution and agricultural product residues, and delay the drug resistance of rice hoppers to a single insecticide, and has the advantages of fast insecticidal speed and long duration. Compared with single reagents, the compound insecticide can lower the cost.

Description

technical field [0001] The invention belongs to the technical field of pest chemical control, and relates to a compound insecticide containing silafluofen and chlorpyrifos for controlling rice planthopper. Background technique [0002] Rice planthopper (including brown planthopper, brown planthopper, and white-backed planthopper) is a kind of rice pest with strong migratory ability (except for brown planthopper) and extremely fast reproduction speed. Normally, the 1000-grain weight is reduced, and in severe cases, the whole plant will wither, resulting in a substantial reduction in rice production, and it can also spread viruses and cause stripe leaf blight, which is one of the main pests for rice control. For a long time, the control of rice planthoppers has mainly relied on imidacloprid, organophosphorus and their compounding agents. Among them, the use of highly toxic organophosphorus pesticides has been banned. Due to the long-term single and continuous use of imidaclopr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/16A01N55/10A01P7/00A01P7/04
Inventor 束兆林缪康赵来成张文涛吉沐祥张芳端木和林费子华张建华庄桂花
Owner JIANGSU LVDUN PLANT PROTECTION AGROCHEM EXPERIMENTAL