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Application of pesticide composition containing flufiprole in prevention and control of spodoptera frugiperda

A pesticide composition, the technology of Spodoptera frugiperda, which is applied in the field of pesticide application, can solve the problem that tetrazopyram has not been found yet

Pending Publication Date: 2022-07-01
湖南农大海特农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no relevant report on the control of fall armyworm by the pesticide combination of tetrazopyr and chlorfenapyr

Method used

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  • Application of pesticide composition containing flufiprole in prevention and control of spodoptera frugiperda
  • Application of pesticide composition containing flufiprole in prevention and control of spodoptera frugiperda

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 5

[0015] Example 1 15% tetrazolium and butyronitrile dispersible oil suspension

[0016] The contents of the following substances are all in percentage by weight: tetrazolium 7.5%, butyronitrile 7.5%, polyoxyethylene polyoxypropylene block copolymer 10%, sodium lignosulfonate 10%, xanthan gum 1% %, and methyl oleate made up to 100%. The above materials are mixed in proportion, uniformly dispersed by high-speed shearing, and sanded in a sand mill to obtain a 15% tetrazolium-butafenil dispersible oil suspension agent.

Embodiment 2 8

[0017] Example 2 28% tetrazolium and butyronitrile dispersible oil suspension

[0018] The contents of the following substances are all in percentage by weight: 7% of tetrazolium, 21% of butyronitrile, 8% of castor oil polyoxyethylene ether, 10% of maleic acid-acrylic acid copolymer salt, carboxymethyl cellulose 1.5%, soybean oil topped up to 100%. The above-mentioned materials are mixed in proportion, uniformly dispersed by high-speed shearing, and sanded in a sand mill to obtain a 28% tetrazolium and butyronitrile dispersible oil suspension agent.

Embodiment 3

[0019] Example 3 Indoor virulence assay of tetrazolium and butyronitrile compound to Spodoptera frugiperda

[0020] Test method: With reference to "Indoor Bioassay Test Guidelines for Pesticide NY / T1154.14-2008", the leaf dipping method was used. Statistical analysis was performed with DPS statistical analysis software to calculate the LC of each drug 50 , and calculated the co-toxicity coefficient (CTC value) of the mixture according to Sun Yunpei's method, the co-toxicity coefficient (CTC) ≥ 120 showed a synergistic effect; the co-toxic coefficient (CTC) ≤ 80 showed an antagonistic effect; 80 < co-toxicity coefficient ( CTC)<120 showed an additive effect.

[0021] Table 1 Indoor virulence assay of tetrazolium and butyronitrile compound to Spodoptera frugiperda (3rd instar larvae)

[0022] Drug name and ratio (weight ratio) LC 50 (mg / L)

[0023] It can be seen from Table 1 that the co-toxicity coefficient (CTC) is greater than 120 when the tetrazolium and butyr...

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Abstract

The invention discloses an application of a pesticide composition containing flufiprole in prevention and control of grassland spodoptera frugiperda, the effective active components of the pesticide composition comprise tetratolfenpyrad and flufiprole, and the weight ratio of the tetratolfenpyrad to the flufiprole is (10: 1)-(1: 10). The pesticide composition provided by the invention has an obvious synergistic effect on the spodoptera frugiperda, has an excellent control effect in field application, is obviously better than that of single use of each single agent, is safe to crops, and is an ideal agent for controlling the spodoptera frugiperda.

Description

technical field [0001] The invention relates to a pesticide composition, which is mainly used for controlling Spodoptera frugiperda. The effective active components of the pesticide composition are composed of tetrazolium and butyronitrile, and belong to the technical field of pesticide application. Background technique [0002] Spodoptera frugiperda belongs to Lepidoptera, Noctuidae, commonly known as Fall Armyworm, Fall Armyworm, and Pseudo Armyworm. Its larvae can eat a large number of crops such as corn and rice. Native to the tropical regions of the Americas, it has a strong migratory ability. The larvae feed on the leaves, which can cause defoliation, and then the damage is transferred to other parts. Ridges, which in severe cases can reduce crop yields by more than 80%, have invaded most of the provinces in my country. At present, chemical pesticides are still the main control methods. However, the long-term single and repeated use of chemical pesticides will lead to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/02A01N43/713A01P7/04
CPCA01N47/02A01N43/713
Inventor 张志伟朱刚吴泽伟
Owner 湖南农大海特农化有限公司