CN105794554A

CN105794554A - Control method for wheat aphids

Info

Publication number: CN105794554A
Application number: CN201410851160.7A
Authority: CN
Inventors: 殷瑞嶺
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2016-07-27

Abstract

The object of the invention is to provide a control method for wheat aphids and belongs to the technical field of disease and insect pest control. A control scheme, i.e., seedling-stage control and filling-stage control is provided according to harm characteristics of the aphids to wheat so as to control damages caused by the wheat aphids, the damages are controlled to be below an economic loss allowed level, and thus optimal economic, ecological and social benefits are obtained. The control method has the advantages that the method is simple and efficient, the level of residue is low, the quantity of the aphids can be effectively controlled, the balance of an agricultural ecosystem is not broken, and the like.

Description

A kind of prevention and controls of wheat aphid

Technical field

The invention belongs to crop pest control technical field, specifically the prevention and controls of a kind of wheat aphid.

Background technology

China is a large agricultural country, and within 2013, the national farm system Model on Sown Areas of Farm whole year is 99,200,000 mu, increases by 1,540,000 mu than last year, increases by 1.6%.Semen Tritici aestivi area 8,460,000 mu, increases by 210,000 mu than last year, increases by 2.7%, wherein, spring wheat area 3,830,000 mu, increase by 7.5%.Grain yield is to ensure that the important lifeblood of Chinese national economy.

Aphid, also known as aphid, aphid, is a class plant-feed insect, is one of most destructive insect on the earth.The world known about more than 4700 plants, distribution in China about 1100 kinds, and wherein nearly 250 kinds is endanger serious insect for agriculture and forestry and horticulture.The common wheat aphid of China has grain aphid, green bugs and broomcorn millet an ancient unit of weight equal to 20 or 24 *taels of silver pipe aphid.These three aphid often mixes generation, based on grain aphid and green bugs.If wheat aphid is mainly to become aphid to suck blade, stem stalk, tender head and tender fringe juice harm Semen Tritici aestivi, simultaneously can propagate wheat virus disease, wherein cause harm maximum propagating yellow stunt of wheat.Green bugs happiness is caused harm at crops seedling stage, and killed portion forms withered speckle, and other aphid is without this symptom, and grain aphid is many causes harm in plant upper blade front, after Heading filling, breeds rapidly, concentrates fringe portion to cause harm.

Stability according to ecosystem, ecosystem has self-regulating function, various harmful or harmless biology in case of human in nature, it is all the different levels that mutually restrict again of office mutual dependence for existence in biological chain and link, the disappearance of any one link, all can affect the stability of this area's ecosystem.Carry out the biology that agricultural production is harmful eliminating up hill and dale it is not necessary that, be also impossible, controlled under economic loss tolerable injury level, it is thus achieved that best economy, ecology and social benefit, be only the most key.The prevention and controls of the present invention proposes according to above-mentioned thought.

Summary of the invention

It is an object of the invention to provide the prevention and controls of a kind of wheat aphid, according to aphid, the hazard profile of Semen Tritici aestivi is proposed control prece: preventing and treating in seedling stage and pustulation period preventing and treating.

It is below the particular content of scheme:

Seedling stage prevents and treats: the mainly green bugs of harm in seedling stage.Be about to begin preventing and treating when every square metre has an aphid 30-60 head, every mu of use 20,%00 aphid clean 30 milliliters and 2% aphid must kill 40 milliliters of 35-45 kilogram of mixing that add water, after the morning, dew is dry, or even spraying after at 4 in afternoon, when occurring more serious, then add the mixing of 1 bag of imidacloprid and spray.

Pustulation period prevents and treats: the mainly grain aphid of pustulation period harm, be about to begin preventing and treating when every square metre of average strain aphid amount about 10, every mu of anti-aphid imidacloprid wettable powder of use 24% 20 grams and 5% acetamiprid EC 20 milliliters add water 35-45 kilogram of mixing, after the morning, dew is dry, or even spraying after at 4 in afternoon.When occurring more serious, every mu of use 3.6% Acetamiprid water dispersant 25 grams and 50% phoxim emulsifiable concentrate 50 milliliters are watered 50 kilograms of spraying preventing and treatings.

The invention have the advantage that the use present invention, method is simple, and efficiently, residual quantity is low, can efficiently control the quantity of aphid, does not destroy Agro-ecological System balance, improves wheat yield.

Detailed description of the invention

This experiment is specifically described by invention group and matched group,

Example 1

Seedling stage Semen Tritici aestivi

Invention group 1: 40 milliliters of 40 kilograms of mixed atomizings that add water must be killed with 20,%00 aphid clean 30 milliliters and 2% aphid；

Invention group 2: 40 milliliters must be killed with clean 30 milliliters of 20,%00 aphid, 2% aphid and the 40 kilograms of mixing that add water of 1 bag of imidacloprid spray；

Matched group 1: spray water；

Matched group 2: spray water；

Experimental result is as follows:

Pustulation period Semen Tritici aestivi

Invention group 1: spray with the 40 kilograms of mixing that add water of 24% anti-aphid imidacloprid wettable powder 20 grams and 5% acetamiprid EC 20 milliliters；

Invention group 2: spray with the 50 kilograms of mixing that add water of 3.6% acetamiprid water dispersible granules 25 grams and 50% phoxim emulsifiable concentrate 50 milliliters；

Matched group 1: spray water；

Matched group 2: spray water；

Experimental result is as follows:

Claims

1. the prevention and controls of a wheat aphid, it is characterised in that: according to aphid, control prece is proposed the hazard profile of Semen Tritici aestivi: preventing and treating in seedling stage and pustulation period preventing and treating.

2. the prevention and controls according to claim 1 wheat aphid, it is characterized in that, described preventing and treating in seedling stage refers to the preventing and treating that is about to begin when every square metre has an aphid 30-60 head, every mu of use 20,%00 aphid clean 30 milliliters and 2% aphid must kill 40 milliliters of 35-45 kilogram of mixing that add water, after the morning, dew is dry, or even spraying after at 4 in afternoon, occur more serious, then add the mixing of 1 bag of imidacloprid and spray.

3. the prevention and controls according to claim 1 wheat aphid, it is characterized in that, described pustulation period preventing and treating refers to the preventing and treating that is about to begin when every square metre of average strain aphid amount about 10, every mu of anti-aphid imidacloprid wettable powder of use 24% 20 grams and 5% acetamiprid EC 20 milliliters add water 35-45 kilogram of mixing, after the morning, dew is dry, or even spraying after at 4 in afternoon；When occurring more serious, every mu of use 3.6% acetamiprid water dispersible granules 25 grams and 50% phoxim emulsifiable concentrate 50 milliliters are watered 50 kilograms of spraying preventing and treatings.