Synergistic insecticidal composition containing thiamethoxam and tolfenpyrad and application thereof

An insecticidal composition and technology of tonamirad, which is applied in the field of pesticides containing heterocyclic compounds, can solve the problems of easy generation of drug resistance, inability to protect crops, and high cost of drug use, so as to reduce the amount of pesticides used in the field, reduce pesticide residues, and reduce production costs. and cost reduction effect

CN103621532AInactive Publication Date: 2014-03-12NANJING HUAZHOU PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-03-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a synergistic insecticidal composition containing thiamethoxam and tolfenpyrad and application thereof. The synergistic insecticidal composition comprises main effective components of thiamethoxam and synergistic in a weight ratio of 1-60:1-70. The insecticidal composition has expanded spectrum of control and synergistic effect, and can reduce the cost of medication, be formulated into missible oil, wettable powder, microemulsion, aqueous emulsion, suspending agent and water dispersible granule for the control of various insects of Lepidoptera, Hemiptera, Hymenoptera and Coleoptera.
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Description

technical field

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

[0002] Thiamethoxam (Thiamethoxam), chemical name: 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazin-4-yl fork ( nitro)amine.

[0003] Thiamethoxam is a neonicotinoid insecticide. The mechanism of action of thiamethoxam is similar to that of imidacloprid. It can selectively inhibit the nicotinic acid acetylcholinesterase receptor in the insect central nervous system, thereby blocking the normal conduction of the insect central nervous system, causing pests Dies when a paralyzing machine appears. Thiamethoxam not only has contact killing, stomach poisoning, and systemic activity, but also has higher activity, better safety, wider insecticidal spectrum, fast action speed, and long-lasting effe...

Examples

Embodiment 1

[0021] Weigh 30 g of thiamethoxam 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 prepare thiamethoxam-pyramid emulsifiable concentrates with a main active ingredient of 30% by weight. The specific ratios of thiamethoxam and tolfenpyrad are shown in Table 1.

[0022] The toxicity of thiamethoxam, tolfenpyrad and their compound samples was determined by feed poisoning method against resistant cotton bollworms, each treatment was repeated 3 times, each concentration was treated with 30 heads, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0023] Table 1 Toxicity determination and co-toxicity coefficient of thiamethoxam, tolfenpyrad and their compound samples against resistant cotton bollworm

[0024]

[0025] The data...

Embodiment 2

[0027] Weigh 30 g of thiamethoxam 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 prepare thiamethoxam-pyramid emulsifiable concentrates with a main active ingredient of 30% by weight. The specific ratios of thiamethoxam and tolfenpyrad are shown in Table 2.

[0028] The toxicity of thiamethoxam, tolfenpyrad and their compound samples to wheat aphids was determined by rice stem dipping method, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0029] Table 2 Toxicity determination and co-toxicity coefficient of thiamethoxam, tolfenpyrad and their compound samples to wheat aphids

[0030]

[0031] The data in the table shows that the mixture of thiamethoxam and tofenpyrad has a synerg...

Embodiment 3

[0033] Weigh 5g of thiamethoxam, 20g of pyrenpyrrole, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and solvent oil to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mixed to make thiamethoxam-pyramid emulsifiable concentrate whose main active ingredient is 25% by weight.

[0034] Adopt the sample that embodiment 3 is equipped to carry out the field experiment of field control wheat aphid, contrast medicament is 25% thiamethoxam WP and 25% tolfenpyrad EC, 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:

[0035] Table 3 example 3 sample is to the field test result of wheat aphid

[0036]

[0037]

[0038] It can be seen from Table 3 that Example 3 has an excellent quick-acting effect on wheat aphids, and has a ...