Chitosan oligosaccharide composition for preventing and controlling rice plant hoppers and use and using method thereof

A technology of chitosan oligosaccharide and composition, applied in the field of agricultural chemistry, to achieve the effect of improving the effect

Active Publication Date: 2014-03-19
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are no pesticides and scientific and effective control methods that are both environmentally friendly and effective in controlling rice planthoppers.

Method used

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  • Chitosan oligosaccharide composition for preventing and controlling rice plant hoppers and use and using method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] Dilute the 5% chitosan oligosaccharide solution with water to the corresponding application concentration, the concentration is calculated according to the weight percent concentration, and is calculated in ppm (parts per million) concentration in the result record, and 50ppm represents the weight percent in the result record below The concentration is 0.005%. Water treatment was used as a control. The diluted solution was used to treat the rice in the early stage of rice planthopper disease in stages according to the requirements, and the interval of spraying treatment was 7 days. Each treatment was observed and detected through 3 test fields (100 square meters), and the disease development of rice planthoppers in each test field was counted. The timing of applying the chitosan oligosaccharide solution to treat rice planthoppers is that the number of rice plants with insect populations eaten by rice planthoppers accounts for 3±0.25% of the total number of rice plants....

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Abstract

The invention relates to a chitosan oligosaccharide composition for preventing and controlling rice plant hoppers, and use and a using method of the chitosan oligosaccharide composition, and particularly provides a pesticide composition for preventing and controlling the rice plant hoppers, wherein the pesticide composition comprises chitosan oligosaccharide which accounts for 0.004 to 0.025 percent of the weight of the pesticide composition. The invention also provides the use of the chitosan oligosaccharide-comprising pesticide composition and a method for using the chitosan oligosaccharide-comprising pesticide to prevent and control the rice plant hoppers. By the pesticide composition and the method, the rice plant hoppers can be prevented and controlled, particularly after crops which are infected by the rice plant hoppers are treated by using the chitosan oligosaccharide-comprising pesticide, the rice plant hoppers are prevented and controlled, phytotoxicity is not generated, pesticide residues are not produced, and environment-friendly prevention and control over the rice plant hoppers is realized.

Description

technical field [0001] The invention belongs to the field of agricultural chemistry, and in particular relates to a control composition and a control method for rice planthoppers, in particular to a chitosan oligosaccharide composition for controlling rice planthoppers and its use and method. Background technique [0002] Rice planthopper (including brown planthopper, white-backed planthopper, and brown planthopper), belonging to the order Homoptera, planthopper family, is one of the main migratory pests on rice in China and Asian countries. It has long-distance migratory habits and is widely distributed in tropical, subtropical and temperate regions of Asia, including the South Asian subcontinent, Southeast Asia, the South Pacific Islands and Australia. Brown planthopper has a single diet and only uses cultivated rice and wild rice as hosts. The way of harm: mainly through directly sucking the liquid nutrients in the phloem of the rice plant, the growth of rice is inhibite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01P7/04
Inventor 张善学侯华民陆红霞陈坚
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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