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Complex insecticidal composition containing tolfenpxrad and diazinon and application thereof

An insecticidal composition and technology of tonamiprod, which is applied in the field of pesticides, can solve problems such as the undiscovered insecticidal composition of tonamirad and diazinon, and the decline in the effect of pest control, so as to overcome pest resistance and reduce control. The effects of labor and resistance enhancement

Inactive Publication Date: 2013-04-17
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the resistance of diamondback moth, cotton bollworm and thrips is gradually increasing under the current long-term application conditions, and the effect of single-dose pesticides on pest control is gradually decreasing.
The inventor found through research that the synergistic compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no insecticidal composition related to tolfenpyrad and diazinon has been found.

Method used

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  • Complex insecticidal composition containing tolfenpxrad and diazinon and application thereof
  • Complex insecticidal composition containing tolfenpxrad and diazinon and application thereof
  • Complex insecticidal composition containing tolfenpxrad and diazinon and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Fenpyradim and diazinon were weighed and prepared in different proportions by conventional preparation methods to prepare tolfenpyrad-diazinon emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Tables 1 and 2 for specific ratios.

[0023] The rice stem dipping method was used for indoor synergistic bioassay, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. The toxicological regression equation and Lethal medium concentration LC50, using LC 50 The co-toxicity coefficient was calculated according to Sun Yunpei method, and the results are shown in Table 1:

[0024] Table 1 Toxicity determination of toxinpyrad and diazinon compound and single dose against resistant Plutella xylostella

[0025]

[0026] It can be seen from Table 1 that the co-toxicity coefficients of the combination of tofenpyrad and diazinon are both greater than...

Embodiment 2

[0032] Weigh 2g of pyrenpyrid, 18g of diazinon, 6g of calcium dodecylbenzenesulfonate, 3g of phenylethylphenol polyoxyethylene ether phosphate, 2g of agricultural milk 33#, 1g of alkylphenol polyoxyethylene ether, and ring Hexanone 10g, 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 tonamiprole·diazinon microemulsion with a main active ingredient of 20% by weight.

[0033] Example 2 is carried out to prevent and control vegetables Plutella xylostella drug effect test, contrast agent is 50% diazinon EC (emulsifiable concentrate) and 15% tolfenpyrad EC, and with clear water as blank control, dilute according to the dilution factor in table 3, After checking the results of 3 days and 7 days after the medicine, the processing results are shown in Table 3:

[0034] Table 3: Field test results of Fenpyrad and Diazinon compound on Plutella xylostella

[0035]

[0036] The...

Embodiment 3

[0043] Weigh 5g pyrenpyrad, 50g diazinon, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 # 2g, 1g of alkylphenol polyoxyethylene ether, 13g of xylene, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing water-based emulsions, and mix at high speed to form a tonamiprole-diazinon-water emulsion with a total weight percentage of main active ingredients of 55%.

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Abstract

The invention belongs to the field of agricultural chemicals and discloses a complex insecticidal composition containing tolfenpxrad and diazinon and an application thereof. The insecticidal composition takes the tolfenpxrad and the diazinon as main active ingredients, wherein the weight ratio of the tolfenpxrad to the diazinon is (0.1-80):(0.5-80). The insecticidal composition can produce higher cooperative and synergistic action, overcome and delay drug resistance of pests, realize high pest-killing speed and long lasting period, reduce the cost of medication and enable the control effect to be better than that of a single agent. The insecticidal composition disclosed by the invention can be used for controlling lepidoptera pest, homoptera, thysanoptera or mite type pests on crops and particularly has special efficacy for controlling lepidoptera diamond back moths, cotton bollworms, asparagus caterpillars, thysanoptera thrips, mites and other pests, and the effects are obviously higher than those of the single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a compound insecticidal composition containing tolfenpyrad and diazinon and an application thereof. Background technique [0002] Tolfenpyrad (Tolfenpyrad), chemical name: 4-chloro-3-ethyl-1-methyl-N-{[4-(4-methylphenoxy)phenyl]-methyl}-1H pyrazole -5-Carboxamide, off-white solid powder, density (25°C): 1.18g / cm, vapor pressure (25°C): <5×10Pa. Solubility (25°C): water 0.037mg / L, n-hexane 7.41g / L, toluene 366g / L, methanol 59.6g / L. Partition coefficient (n-octanol / water) (25°C): log Pow5.61. The structural formula is: [0003] [0004] The acute toxicity of the tonfenpyrad preparation is: oral LD50102 (male), 83 (female) mg / kg for rats; oral LD50104 (male), 108 (female) mg / kg for mice. The acute percutaneous toxicity is relatively low, with LD50>2000mg / kg for rats and mice. Moderately irritating to rabbit eyes and skin. [0005] Fenpyramid is a new type of pyra...

Claims

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Application Information

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IPC IPC(8): A01N57/16A01N43/56A01P7/02A01P7/04
Inventor 陈文明贠琰芮裕健沈海峰乔璐曼
Owner NANJING HUAZHOU PHARMA
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