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Composite insecticidal composition containing clothianidin and chlorfenapyr and applications thereof

An insecticidal composition and a technology for chlorfenapyr, which are applied in the field of pesticides containing heterocyclic compounds, can solve the problems of inability to effectively control and control resistant pests, increase in resistance and the like, and achieve the goal of overcoming pesticide resistance, inhibiting resistance, and improving control of pests. effect of effect

Inactive Publication Date: 2014-03-12
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, at present, under the condition of long-term single-drug use of clothianidin and chlorfenapyr, many pests have increased resistance to them, and the use of clothianidin or chlorfenapyr alone cannot effectively control resistant pests.

Method used

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  • Composite insecticidal composition containing clothianidin and chlorfenapyr and applications thereof
  • Composite insecticidal composition containing clothianidin and chlorfenapyr and applications thereof
  • Composite insecticidal composition containing clothianidin and chlorfenapyr and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 30 g of clothianidin and chlorfenapyr, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and vegetable oil to 100 g. Put the above raw materials into a mixing tank according to the conventional method for preparing EC and mix them to prepare clothianidin·chlorfenapyr EC with a main active ingredient of 30% by weight. The specific ratios of clothianidin and chlorfenapyr are shown in Tables 1 and 2.

[0024] Indoor synergistic bioassay was carried out by rice stem dipping method, the resistant rice planthopper was selected as the target pest, each treatment was repeated 3 times, and 60 heads were treated at each concentration, and the toxicological regression of each pesticide resistant rice planthopper was calculated by the probability value method Equation and lethal concentration LC 50 , with LC 50 The co-toxicity coefficient was calculated according to Sun Yunpei method, and the results are shown in Table 1:

[0025] Table ...

Embodiment 2

[0034] Weigh 5g clothianidin, 50g chlorfenapyr, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 ＃ 2g, emulsifier 600 # 1g, vegetable oil 13g, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing water emulsion, and mix at high speed to form a clothianidin·chlorfenapyr water emulsion with a main active ingredient of 55% by weight.

Embodiment 3

[0036] Weigh 2g clothianidin, 18g chlorfenapyr, 6g calcium dodecylbenzenesulfonate, 3g phenylethylphenol polyoxyethylene ether phosphate, 33 agricultural milk ＃ 2g, emulsifier 600 # 1g, 10g of isopropanol, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing microemulsions, and mix them to form a clothianidin·chlorfenapyr microemulsion with a main active ingredient of 20% by weight.

[0037] Carry out the efficacy test of controlling rice brown planthopper in Example 3, the control agent is 20% chlorfenapyr EC (emulsifiable concentrate) and 20% clothianidin EW (emulsion in water), according to the dosage in Table 3, the water consumption per mu is 30kg, Check the results of 3 days, 7 days, 14 days, and 28 days after the medicine, and the treatment results are shown in Table 3:

[0038] Table 3: Field test results of clothianidin-chlorfenapyr compound on rice brown planthopper

[0039]

[0040] Field drug eff...

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Abstract

The invention discloses a composite insecticidal composition containing clothianidin and chlorfenapyr and applications thereof. The insecticidal composition employs clothianidin and chlorfenapyr as main effective components, wherein, the weight ratio of clothianidin to chlorfenapyr is 0.1-70:0.5-70. The insecticidal composition can enlarge the control spectrum, has synergistic effects and delays drug resistance of insects. The insecticidal speed is fast, the persistent period is long and the drug cost is lowered. The control effects of the composition are obviously higher than that of single usage. The insecticidal composition can control hemiptera insects on crops, and especially can be used for controlling rice planthopper and aphid, and the effects of the composition are obviously higher than that of single usage.

Description

technical field [0001] The invention belongs to the field of pesticides containing heterocyclic compounds, and in particular relates to a compound insecticidal composition containing clothianidin and chlorfenapyr and its application. Background technique [0002] Clothianidin, chemical name: E)-1-(2-chloro-1,3-thiazol-5-ylmethyl)-3-methyl-2-nitroguanidine; chemical formula: C 6 h 8 ClN 5 O 2 S; pure product is white crystal, melting point 176.8°C, vapor pressure (20°C) 3.8×10-11Pa, solubility (g / L, 25°C): 0.327 in water (20°C), 2.03 in ethyl acetate, n-heptyl <0.00104 in alkane, 0.0128 in xylene, 1.32 in dichloromethane, 0.938 in octanol, 15.2 in acetone, and 6.26 in methanol. Structural formula: [0003] [0004] Clothianidin acute oral toxicity, male and female rats: LD50>5000mg / kg, acute dermal toxicity: male and female rats: LD50>2000mg / kg, human inhalation toxicity: male and female rats, 6.1mg / L. [0005] Clothianidin is a neonicotinoid insecticide, a ...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N43/36A01P7/04
Inventor 陈文明袁竹青彭永强吴敏沈海峰
Owner NANJING HUAZHOU PHARMA