Composition for preventing rice leaf roller, preparation and application thereof
A technology of rice leaf roller and leaf roller, which is applied in the field of pesticides, can solve the problems of low activity and poor quick effect of rice leaf roller larvae, reduce the risk of resistance, reduce the dosage, and reduce pollution Effect
Inactive Publication Date: 2011-04-27
SHANGHAI SHENGNONG PESTICIDE
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AI Technical Summary
Problems solved by technology
A single agent of pyriproxyfen as a specific insecticide has very low activity against the larvae of the rice leaf roller, and its quick-acting effect is poor
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0040] 3 parts by weight of emamectin benzoate (69.5%, Zhejiang Hisun Chemical Co., Ltd., the same below), 12 parts by weight of pyriproxyfen (97%, Shanghai Shengnong Biochemical Products Co., Ltd., the same below), 10 parts by weight of auxiliary agents and 74 parts by weight It is prepared by mixing parts by weight of xylene and 1 part of piperonyl ether.
Embodiment 2
[0042] It is prepared by mixing 2 parts by weight of emamectin benzoate, 18 parts by weight of pyriproxyfen, 10 parts by weight of additives and 70 parts by weight of xylene.
Embodiment 3
[0044] It is prepared by mixing 2 parts by weight of emamectin benzoate, 28 parts by weight of pyriproxyfen, 12 parts by weight of auxiliary agents and 58 parts by weight of xylene.
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The invention relates to a composition for killing rice leaf rollers, having touch-out property, stomach poison property and ovicidal function and comprising two active components of emamectin benzoate and pyriproxyfen, wherein the weight ratio of the emamectin benzoate to the pyriproxyfen is between 1:4 and 1:24, the preparation of the composition can be prepared from effective dose of emamectin benzoate and pyriproxyfen in the presence of a solid or liquid carrier, an addition agent and other additives by a conventional method and is used for processing the rice leaf rollers or habitats thereof, and the weight ratio of the active components of the emamectin benzoate and the pyriproxyfen is between 1:4 and 1:24 in the composition preparation. The composition overcomes the defect of short lasting period in the prior art, shows obvious synergy, can display better touch-out property, stomach poison property and ovicidal effect on rice leaf rollers at smaller dose, has a long lasting period and increases quick killing activity for the rice leaf rollers.
Description
technical field [0001] The present invention relates to a composition for controlling rice leaf roller, in particular to a composition for preventing and treating rice leaf roller, which has contact killing, stomach toxicity and ovicidal effects, and its preparation. The composition contains Two active components, emamectin benzoate and pyriproxyfen, belong to the technical field of pesticides. Background technique [0002] The rice leaf roller is the most important migratory pest that harms rice, and a small amount of it overwinters in areas south of 30°N latitude in China. The occurrence algebra in different places in one year is quite different due to the difference in the time of immigration. For example, 2-3 generations in northern Hebei and Shandong; 4-5 generations in Xinyang, Henan, the middle and lower reaches of the Yangtze River such as Hubei, Anhui, Jiangsu, Shanghai and northern Zhejiang; Guangxi has 6-7 generations; Lingshui County in Hainan Province has 10-1...
Claims
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IPC IPC(8): A01N43/90A01N43/40A01P7/04
Inventor 施顺发张雪林张芝平徐里奇毕强董建生
Owner SHANGHAI SHENGNONG PESTICIDE
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