Synergistic insecticidal composition containing clothianidin and imidacloprid and applications thereof

The technology of an insecticidal composition and imidacloprid, which is applied to the field of pesticides containing heterocyclic compounds, can solve the problems of high drug cost for farmers, easy generation of drug resistance, and inability to protect crops, and achieves reduction of field drug dosage, environmental pollution and pesticides. Residues and 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

[0009] 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 imidacloprid and applications thereof
  • Synergistic insecticidal composition containing clothianidin and imidacloprid and applications thereof
  • Synergistic insecticidal composition containing clothianidin and imidacloprid and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 30 g of clothianidin and imidacloprid, 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 concentrate, and mix them to prepare clothianidin·imidacloprid emulsifiable concentrate with a main active ingredient of 30% by weight. The specific ratio of clothianidin and imidacloprid is shown in Table 1.

[0025] The rice dipping method was used to determine the toxicity of clothianidin, imidacloprid and their compound samples to rice planthoppers. Each treatment was repeated 3 times, and each concentration was treated with 30 heads. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0026] Table 1 Toxicity determination and co-toxicity coefficient of clothianidin, imidacloprid and their compound samples to rice planthoppers

[0027]

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

Embodiment 2

[0030] Weigh clothianidin and imidacloprid and prepare clothianidin imidacloprid emulsifiable concentrate with a main active ingredient weight percentage of 30% by conventional preparation methods in different proportions. See Table 2 for specific proportions.

[0031] The toxicity of clothianidin, imidacloprid and their compound samples to wheat 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 clothianidin, imidacloprid and their compound samples to wheat aphids

[0033]

[0034] The data in the table shows that clothianidin and imidacloprid have a synergistic effect on wheat aphids after being mixed, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120, so the mixture of clothianidin and imidacloprid has a significant synergistic effect. effect...

Embodiment 3

[0036] Weigh 5g clothianidin, 20g imidacloprid, 4g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether, xylene to 100g, put the above raw materials into the mixing tank according to the conventional method for preparing emulsifiable concentrate, Clothianidin imidacloprid emulsifiable concentrate of 25% by weight of the main active ingredient is prepared.

[0037] Adopt the sample that embodiment 3 is equipped to carry out the field test of rice planthopper prevention and control in field, contrast agent is 15% clothianidin EC and 10% imidacloprid WDG, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg, checks 3 after medicine Day, 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 paddy rice planthopper

[0039]

[0040] It can be seen from Table 3 that Example 3 has an excellent quick-acting effect on rice planthoppers, and has a relat...

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Abstract

The invention discloses a synergistic insecticidal composition containing clothianidin and imidacloprid and applications thereof. The synergistic insecticidal composition employs clothianidin and imidacloprid as main effective components, wherein, the weight ratio of clothianidin to imidacloprid is 0.1-90:0.1-90. The composition has high synergistic effects, delays drug resistance of insects, and lowers 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 hemiptera, coleopteran, lepidoptera, hymenoptera and the like with resistance.

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 imidacloprid 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 neonicoti...

Claims

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Application Information

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