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Prevention and control method for field thrips and Tospovirus diseases

A tomato spotted wilt virus and disease technology, which is applied in the field of field prevention and control of thrips and tomato spotted wilt virus diseases, can solve the problems of crop production loss, increased resistance of thrips, and excessive pesticide residues, and achieve prevention and control efficiency High, increase farmers' income, good repeatability of results

Inactive Publication Date: 2017-04-26
云南省农业科学院生物技术与种质资源研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tomato spotted wilt virus diseases occur widely all over the world. Tomato spotted wilt virus can infect a variety of economic crops such as: tomato, pepper, potato, tobacco, sericulture, kiwi fruit, soybean, peanut, etc. The outbreak of the virus caused serious losses to crop production
At present, the prevention and control of this disease is mainly to use chemical agents to prevent and control thrips, the vector of transmission, which is likely to cause excessive pesticide residues and increase resistance of thrips, which is a potential threat to food safety and the ecological environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0027] The method of comprehensive prevention and control of thrips and tomato spotted wilt virus diseases transmitted by thrips and tomato spotted wilt virus was implemented in the tobacco field of Zhongshu Town, Luxi County, Yunnan Province.

[0028] Select the field where corn was planted in the previous year, and sample and detect 5 mu of farmland with a virus-carrying rate of less than 2‰ in field crops and weeds. The variety of flue-cured tobacco planted is Yunyan 87. 1-2 weeks before transplanting, release predatory mites once every 7 days, that is, mix 1.5-2.5Kg of wheat bran with 15-20 bottles of predatory mites, and spread them on the plants.

[0029] Before transplanting, inspect the tobacco seedlings for insects and viruses, select non-toxic and insect-free tobacco seedlings, and spray 3% hypersensitive protein microparticles 3000-5000 times liquid on the tobacco seedlings 2 to 3 days before transplanting, that is, each bag ( 10 grams) mixed with 15-16 kg of water ...

Embodiment example 2

[0036] The method of comprehensive prevention and control of thrips and tomato spotted wilt virus diseases transmitted by thrips and tomato spotted wilt virus was implemented in the tomato fields of Jinning County, Yunnan Province.

[0037] Select 3 mu of farmland with low disease incidence in the previous year.

[0038] Before transplanting, inspect the seedlings for insects and viruses, select non-toxic and insect-free seedlings, spray 3% hypersensitive protein microparticles 3000-5000 times liquid on the seedlings 2 to 3 days before transplanting, that is, each bag (10 grams) Mix 15-16 kg of water for spraying.

[0039] Elimination of thrips and virus hosts in the field: removal of weeds and plant hosts in the field, including pink primrose, ghost needle grass, pepper, shepherd's purse, eggplant, ashweed, tomato, chrysanthemum, etc.

[0040] Timely insecticide: hang blue sticky insect boards in the field, hang 3~5 sheets per mu, and when 20~30 thrips are stuck on each shee...

Embodiment example 3

[0045] The method of comprehensive prevention and control of thrips and tomato spotted wilt virus diseases transmitted by it was implemented in Jinma Town, Luxi County, Yunnan Province.

[0046]Select the field where corn was planted in the previous year, and sample 5 acres of farmland where the virus-carrying rate of crops and weeds in the field is lower than 2‰, and remove the residues of cow chickweed, lettuce, and lettuce around the tobacco field before transplanting For host plants such as lettuce and ghost needle grass, make sure to remove the host plants within 50-100 meters around, and spray insecticides such as 200g / L imidacloprid soluble agent 3000-5000 times, or 5% acetamiprid EC 2000-3000 times times solution, or 2000-32500 times solution of 25g / L lambda-cyhalothrin emulsifiable concentrate, to minimize the thrips population in the transplanted field and ensure that the host infection rate is lower than 2.5‰. The flue-cured tobacco variety is K326.

[0047] Before...

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PUM

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Abstract

The invention discloses a prevention and control method for field thrips and Tospovirus diseases. The method comprises the steps of carrying out field selection, carrying out pretreatment, carrying out transplanted disease control, carrying out disease control at the preliminary stage of flourishing growth, and carrying out harvesting. According to the method, the virus propagation thrips and the Tospovirus diseases propagated by the thrips can be effectively controlled, and the comprehensive control efficiency can reach 76.3% to 84.3%. According to the method, the prevention and control steps are simple, the design is reasonable, efficient and safe, the implementation performance is high, the prevention and control efficiency is high, the result repeatability is good, the yield per unit of crops and the income of farmers can be increased under the condition of not increasing prevention and control cost, the technical applicable range is wide, and the economic and ecological benefits are remarkable.

Description

technical field [0001] The invention belongs to the technical field of plant virus disease prevention and control, and in particular relates to a method for prevention and control of field thrips and tomato spotted wilt virus diseases. Background technique [0002] Tomato spotted wilt virus (Tospovirus) belongs to Bunyaviridae (Bunyaviridae). There are 5 genera in the Bunyaviridae family. Tomato spotted wilt virus is the only virus in this family that infects plants. The main toxin-transmitting mediator is thrips (Thrips). Tomato spotted wilt virus diseases occur widely all over the world. Tomato spotted wilt virus can infect a variety of economic crops such as: tomato, pepper, potato, tobacco, sericulture, kiwi fruit, soybean, peanut, etc. The outbreak of the virus The epidemic has caused extremely serious losses to crop production. At present, the prevention and control of this disease is mainly to use chemical agents to prevent and control thrips, the transmission med...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01G7/06
CPCA01G7/06A01G13/00
Inventor 董家红李宏光陈永对刘春明吴阔肖俊华梁兵阙劲松李兴勇张朋张洁范文彪
Owner 云南省农业科学院生物技术与种质资源研究所
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