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Synergistic insecticidal composition containing clothianidin and tolfenpyrad and applications thereof

The technology of an insecticidal composition and tolafenamide, which is applied to the field of pesticides containing heterocyclic compounds, can solve the problems of high drug cost for farmers, inability to protect crops, and easy generation of drug resistance, so as to reduce the amount of pesticides used in the field and reduce pesticide residues. , The effect of reducing labor costs for prevention and control

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] Insecticide varieties containing a single component often have defects in the control of pesticide pests: continuous use is easy to produce resistance, narrow insecticidal spectrum, cannot provide comprehensive protection for crops, and the cost of pesticides for farmers is high.

Method used

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  • Synergistic insecticidal composition containing clothianidin and tolfenpyrad and applications thereof
  • Synergistic insecticidal composition containing clothianidin and tolfenpyrad and applications thereof
  • Synergistic insecticidal composition containing clothianidin and tolfenpyrad and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 30 g of clothianidin and tolfenpyrad, 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 emulsifiable concentrates, and mix them to make clothianidin-toxenpyrad emulsifiable concentrates whose main active ingredients are 30% by weight. The specific ratios of clothianidin and tofenpyrad are shown in Table 1. The toxicity of clothianidin, tolfenpyrad and their compound samples to Plutella xylostella was determined by feed poisoning method, each treatment was repeated 3 times, and 30 heads were treated at each concentration, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0026] Table 1 Toxicity determination and co-toxicity coefficient of clothianidin, tolfenpyrad and their compound samples to Plutella xylostella

[0027]

[0028] The data in the table shows that the ...

Embodiment 2

[0030] Weigh clothianidin and tofenpyrad emulsifiable concentrate with 30% by weight of the main active ingredients by conventional preparation methods and in different proportions. See Table 2 for specific proportions.

[0031] The toxicity of clothianidin, tolfenpyrad and their compound samples to cotton aphids was determined by dipping method, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0032] Table 2 Toxicity determination and co-toxicity coefficient of toxinpyrad, clothianidin and their compound samples to cotton aphids

[0033]

[0034] The data in the table shows that the mixture of tonamirad and clothianidin has a synergistic effect on cotton aphids, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120, so the mixture of tonamirad and clothianidin Has a significant synergistic effect. Among them, when the ratio of pyrenpyrad and clothianidi...

Embodiment 3

[0036] Weigh 20g clothianidin, 4g pyrenpyrad, 4g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether, and xylene to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mixed to make the clothianidin · tofenpyrad emulsifiable concentrate whose main active ingredient weight percent content is 24%.

[0037] Adopt the sample that embodiment 3 is equipped to carry out the field test of field prevention and control vegetable diamondback moth, contrast agent is 15% tolfenpyrad EC and 22% clothianidin SC, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg, check after medicine. 3 days, 7 days, 14 days, 28 days results, the test results are shown in Table 3:

[0038] Table 3 example 3 sample is to the field test result of vegetable diamondback moth

[0039]

[0040] It can be seen from Table 3 that Example 3 has excellent quick-acting effect on veg...

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Abstract

The invention discloses a synergistic insecticidal composition containing clothianidin and tolfenpyrad and applications thereof. The synergistic insecticidal composition employs clothianidin and tolfenpyrad as main effective components, wherein, the weight ratio of clothianidin to tolfenpyrad is 0.1-60:0.1-50. The composition can enlarge the control spectrum, has synergistic effects, and can lower drug cost. The composition can be prepared into missible oil, wettable powder, microemulsion, emulsion in water, suspending agents and water dispersion granules, and is used for control of various insects of lepidoptera, hemiptera, hymenoptera, coleopteran and the like.

Description

technical field [0001] The invention belongs to the field of pesticides containing heterocyclic compounds, and in particular relates to an insecticidal composition with clothianidin and tolfenpyrad as main active ingredients and an application thereof. 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 neonicotin...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N43/56A01P7/04
Inventor 陈文明袁竹青彭永强吴敏沈海峰
Owner NANJING HUAZHOU PHARMA
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