Synergistic insecticidal composition containing clothianidin and nitenpyram and applications thereof

An insecticidal composition, nitenpyram technology, applied in the field of pesticides containing heterocyclic compounds, can solve the problems of high drug cost, narrow insecticidal spectrum, easy to produce drug resistance, etc., to achieve production and use cost reduction, inhibition The effect of increasing resistance and reducing the amount of pesticides used in the field

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

[0006] Clothianidin and nitenpyram 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 nitenpyram and applications thereof
  • Synergistic insecticidal composition containing clothianidin and nitenpyram and applications thereof
  • Synergistic insecticidal composition containing clothianidin and nitenpyram and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 30 g of clothianidin and nitenpyram, 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·nitenpyram emulsifiable concentrate with a main active ingredient of 30% by weight. The specific ratio of clothianidin and nitenpyram is shown in Table 1.

[0022] The rice dipping method was used to determine the toxicity of clothianidin, nitenpyram and their compound samples to rice planthoppers. Each treatment was repeated 3 times, and 30 heads were treated at each concentration. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0023] Table 1 Toxicity determination and co-toxicity coefficient of clothianidin, nitenpyram and their compound samples to rice planthoppers

[0024]

[0025] The data in the table shows that cloth...

Embodiment 2

[0027] Weigh clothianidin and nitenpyram and prepare clothianidin-nitenpyram emulsifiable concentrate with a main active ingredient weight percentage of 30% by conventional preparation methods in different proportions. See Table 2 for specific proportions.

[0028] The toxicity of clothianidin, nitenpyram and their compound samples to vegetable aphids was determined by feed poisoning method, each treatment was repeated 3 times, and the LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0029] Table 2 Toxicity determination and co-toxicity coefficient of clothianidin, nitenpyram and their compound samples to vegetable aphids

[0030]

[0031] The data in the table shows that clothianidin and nitenpyram have a synergistic effect on vegetable aphids after being mixed, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Mixing has a significant synergistic effect. Among them, when the ratio of clo...

Embodiment 3

[0033] Weigh 4g clothianidin, 20g nitenpyram, 4g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether, xylene to 100g, and put the above raw materials into the mixing tank according to the conventional method of preparing emulsifiable concentrate Mix in medium to make clothianidin nitenpyram emulsifiable concentrate whose main active ingredient is 24% by weight.

[0034] The sample prepared in Example 3 was used to carry out the field test of rice planthopper prevention and control in the field. The contrast agent was 15% clothianidin EC and 10% nitenpyram WDG. The specific consumption is shown in Table 3. The water consumption per mu is 30kg. Check the results after 3 days, 7 days, 14 days, and 28 days. The test results are shown in Table 3:

[0035] Table 3 embodiment 3 sample is to the field test result of paddy rice planthopper

[0036]

[0037] It can be seen from Table 3 that Example 3 has an excellent quick-acting effect on rice planthoppers, an...

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Abstract

The invention discloses a synergistic insecticidal composition containing clothianidin and nitenpyram and applications thereof. The synergistic insecticidal composition employs clothianidin and nitenpyram as main effective components, wherein, the weight ratio of clothianidin to nitenpyram is 0.1-70:0.5-70. The composition has high synergistic effects, delays drug resistance of insects, 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 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 nitenpyram 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. Clothianidin is a neonicotinoid insect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N43/40A01P7/04
Inventor 高瑞花袁竹青杨瑞成沈海峰郭崇友
Owner NANJING HUAZHOU PHARMA
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