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Chitosan oligosaccharide combination for killing thrips and use and use 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: 2012-03-14
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are no pesticides and scientific and effective control methods that can both protect the environment and effectively control thrips

Method used

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  • Chitosan oligosaccharide combination for killing thrips and use and use method thereof
  • Chitosan oligosaccharide combination for killing thrips and use and use method thereof
  • Chitosan oligosaccharide combination for killing thrips and use and use method thereof

Examples

Experimental program
Comparison scheme
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 percentage concentration, and is calculated in ppm (parts per million) concentration in the result record, and 50ppm represents the weight percentage in the result record below The concentration is 0.005%. Water treatment was used as a control. The diluted solution is used to treat peppers in the initial stage of thrips onset according to requirements, and the interval of spraying treatment is 7 days. Each treatment was observed and detected through 3 test fields (100 square meters), and the condition development of thrips in each test field was counted respectively. The timing of applying the chitosan oligosaccharide solution to treat thrips is that the number of plants with insect populations eaten by thrips accounts for 3±0.25% of the total number of pepper plants. The effectiveness of thrips control was ...

Embodiment 2

[0029] According to the method of Example 1, experiments were carried out on tomato and papaya, and it was found that applying chitosan oligosaccharide solution on tomato and papaya can also effectively prevent and control the occurrence and development of thrips.

[0030] The specific experimental results are as follows:

[0031] Table 2 Control effect of chitosan oligosaccharide solution on thrips at the initial stage of tomato thrips pest

[0032]

[0033] Table 3 Control effect of chitosan oligosaccharide solution on thrips in the early stage of papaya tomato pest pest

[0034]

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PUM

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Abstract

The invention relates to a chitosan oligosaccharide combination for killing thrips and a use and a use method thereof. Specifically, the invention provides a pesticide combination for killing thrips, which contains chitosan oligosaccharide which accounts for 0.005-0.02 weight percent of the pesticide combination. The invention additionally provides a use of the pesticide combination containing the chitosan oligosaccharide for preventing and controlling the thrips and a method for using the combination containing the chitosan oligosaccharide to prevent and control the thrips. The pesticide combination solves the important problem in killing the thrips. Especially after the pesticide combination containing the chitosan oligosaccharide is used for treating crops which are jeopardized by thrips diseases, not only can the thrips be killed, but also no pesticide damage is caused to the crops, no residual pesticide exists and the environmental-friendly prevention and control of the thrips are 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 thrips, in particular to a chitosan oligosaccharide composition for killing thrips and its use and method. Background technique [0002] Thrips is a microscopic insect and has become a frequent pest of various crops. The adult body is 1.0-1.3 mm long, larger than the male, and the body color is light brown when it first emerges, and then gradually dark brown to black. Square, with 7 antennae, 6-7 of which are the same color as the body. The pronotum is well developed, with 4 bristles on the rear edge, two pairs of wings close to the back of the body, the forewings are larger than the hind wings, the tassels are slender, the wing veins are obvious, and the abdomen is conical with 10 segments. The newly hatched weak worms are egg yellow. [0003] Thrips damage crop leaves, flowers and fruit. The newly hatched nymphs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P7/04A01G13/00
Inventor 张善学侯华民陆红霞陈坚
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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