Natural product combination for preventing and controlling rice blast

A rice blast and natural product technology, applied in the field of agricultural science and technology, can solve problems such as drug resistance, environmental pollution, and pesticide residues

Active Publication Date: 2015-09-23
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the effective measures to control rice blast are mainly chemical control, but the use of chemical pesticides is easy to cause a series of problems, such as: pesticide residues, environmental pollution, safety, drug resistance, etc.

Method used

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  • Natural product combination for preventing and controlling rice blast
  • Natural product combination for preventing and controlling rice blast
  • Natural product combination for preventing and controlling rice blast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be described in more detail below in conjunction with examples, but embodiments of the present invention are not limited to these examples, and the parts described in the examples are all by weight.

[0035] Embodiment of the present invention: Weigh 10 parts of 97% citral and 10 parts of 98% methylheptanone, add 15 parts of emulsifier Nongru 0202C, 15 parts of OX-7513, 15 parts of cosolvent, stabilizer 0.5 parts, make up with water, and cut for 1 hour to get 20% citral·methyl heptanone microemulsion (ME).

[0036] Using the 20% citral methyl heptanone ME obtained above to control rice blast field efficacy test, the test results are summarized as follows:

[0037] In August 2014, in the rice test field in Jiuzhou Town, Huangping County, Guizhou Province, rice blast has occurred in this area over the years. The rice variety in the test site is Kaixiangyou No. 1. The soil fertility is medium to high, the terrain is flat, and the irrigation condi...

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Abstract

The invention discloses a natural product combination for preventing and controlling rice blast efficiently. The natural product combination is composed of citral and methylheptanone. Through compounding and mixing of citral and rhodinal, the natural product combination has obvious synergistic effect on inhibiting mycelial growth and spore germination, preventing and controlling effect can reach about 70% and is remarkable, and insecticide consumption can be lowered effectively, so that labor intensity is reduced, cost is saved, and the problem of excessive insecticide application is solved. The plant essential oil is simple and easy in implementation, wide in material source, low in cost and good in using effect.

Description

technical field [0001] The invention relates to the field of agricultural science and technology, in particular to a natural product composition for preventing and treating rice blast. Background technique [0002] Rice is the main grain crop in my country, accounting for about 40% of the country's total grain output. Rice blast is caused by the blast fungus [ Magnaporthe grisea (Hebert) Barr ] is one of the important worldwide diseases of rice caused by infection. At present, the effective measures to control rice blast are mainly chemical control, but the use of chemical pesticides is easy to cause a series of problems, such as: pesticide residues, environmental pollution, safety, drug resistance and so on. Therefore, looking for efficient, safe and environmentally friendly new pesticides to replace chemical pesticides is a hot spot in the development and research of pesticides. Among them, the biological control of plant diseases has low phytotoxicity, is not easy to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N35/02A01P3/00
Inventor 李明李荣玉吴小毛卢春
Owner GUIZHOU UNIV
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