A kind of insecticidal composition containing malathion and pyriproxyfen and its application

A technology of insecticidal composition and malathion, which is applied in the direction of application, insecticide, biocide, etc., can solve the problems of ecosystem damage, pest rampant, rice field ecosystem damage, etc., to reduce labor costs and control effects Good, safe rice growth effect

Active Publication Date: 2020-02-21
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, putting a large amount of pesticides into rice fields will inevitably kill a large number of natural enemies, thereby causing damage to the rice field ecosystem, causing further rampant pests to cause damage, and excessive reliance on chemical pesticides to control the occurrence of pests, resulting in a vicious circle of continuous destruction of the ecosystem

Method used

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  • A kind of insecticidal composition containing malathion and pyriproxyfen and its application
  • A kind of insecticidal composition containing malathion and pyriproxyfen and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Indoor Toxicity Determination of Malathion and Pyriproxyfen Compound on Rice Nilaparvata lugens Nymphae

[0020] Referring to NY / T 1154.14-2008 indoor bioactivity assay method of insecticides, rice leaf dipping and inoculation method was used for indoor synergistic bioactivity assay, and the pesticides were set in a series of 5-6 gradient concentrations according to the proportional difference, and the tillering stage rice For seedlings, immerse the rice seedlings in the pre-configured medicinal solution for 20 s, take out the rice seedlings and dry them naturally, moisten the base of the rice seedlings with absorbent cotton, put them into glass test tubes, and incubate on the same day for each concentration of the medicinal solution. 8 2nd-instar nymphs of BPH were treated with clean water as a blank control, and each treatment was repeated 3 times. After 72 hours of treatment, the mortality of each treatment was checked, and the corrected mortality was calcu...

Embodiment 2

[0024] Example 2: 10wt% malathion·pyriproxyfen emulsifiable concentrate, wherein 10wt% is the sum of the mass fractions of malathion and pyriproxyfen.

[0025] In terms of mass fraction ratio, malathion is 8.57%, pyriproxyfen 1.43%, cosolvent 5%, emulsifier 6%, stabilizer 3%, antifreeze 2%, and heavy hydrocarbon solvents make up to 100%.

Embodiment 3

[0026] Example 3: 20wt% malathion·pyriproxyfen emulsifiable concentrate, wherein 20wt% is the sum of the mass fractions of malathion and pyriproxyfen.

[0027] Malathion 17.14%, pyriproxyfen 2.86%, cosolvent 6%, emulsifier 7%, stabilizer 3%, antifreeze 2%, and heavy hydrocarbon solvents to 100%.

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Abstract

The invention belongs to the technical field of agricultural pest control and particularly relates to insecticidal composition containing malathion and pyriproxyfen and an application of the insecticidal composition. Effective active components of the insecticidal composition are malathion and pyriproxyfen in a mass ratio being (1-24):1, and the better ratio of malathion to pyriproxyfen as the effective components is 6:1; preferably, the two effective active components including malathion and pyriproxyfen account for 20%-40% of the composition in percentage by mass. The composition is mainly applied to control for rice pests such as rice planthopper, rice thrips, rice leafhopper and the like and has the advantages as follows: compatible use of malathion and pyriproxyfen has an obvious synergistic effect, the field control effect is good, not only can production and development of drug resistance of the rice pests be overcome or delayed, but also the use quantity of field pesticides can be effectively reduced, pollution to the ecological environment of a paddy field due to chemical pesticides is reduced, production cost is reduced, and economic benefit of rice production is increased.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of agricultural diseases and insect pests, and in particular relates to an insecticidal composition containing malathion and pyriproxyfen and an application thereof. Background technique [0002] Rice is one of the three major food crops in the world and the most important food crop in my country. The rice planting area in China accounts for more than 30% of the country's food crop planting area, and my country's rice production accounts for 50% of the country's total food production. Therefore, rice is the most important food in my country. The status and role of social development are enormous. Rice thrips and rice planthoppers are the main pests in rice production in my country. When serious damage occurs, it will cause huge loss of rice yield. The rampant occurrence of rice thrips and rice planthoppers and other major pests has become one of the main reasons for restricting rice ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/12A01N43/40A01P7/04
CPCA01N43/40A01N57/12
Inventor 邱良妙占志雄刘其全卢学松汪进仕
Owner INST OF PLANT PROTECTION FAAS
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