Compared with chemical pesticides, biological pesticides have strong selectivity, are safe for humans and animals, have little impact on the ecological environment, and induce pests and diseases. It is precisely because biological pesticides have broad-spectrum, high-efficiency, safe, non-resistance, and do not kill natural enemies. Advantages; biological pesticides have good prospects for development. In the next few years, the estimated market growth rate of chemical pesticides is about 2%, and bio-pesticides is 10-15%. Growing organic agriculture has led to a gradual increase in demand for biopesticides.
Fruit trees in pest control is also actively promote pollution prevention and control of biological pesticides; biological pesticides commonly used in fruit trees so what, Chinese pesticide Xiaobian summarized as follows:
The biological pesticides commonly used in fruit trees can be mainly divided into plant-derived pesticides, microbial pesticides, inorganic or mineral pesticides, animal sources and specific pesticides.
First, plant-derived pesticides
1. Tobacco leaves 1 kg of tobacco into 10 kg of hot water, then remove it and put it in another 10 kg of water. Combine the sputum twice and mix with 10 kg of lime water (containing 0.5 kg of lime) and spray to prevent aphids, thrips, mites and the like.
2, green Baowei (fruit thinning) with 0.5% green Baowei EC 1000 times ~ 2000 times liquid spray, control leaf caterpillars and so on.
3, 50 grams of chili water, 1 kg of water on the surface of the pepper, boil for 10 minutes, then cool and filter, spray to control aphids.
4. 1 part of the plant ash is soaked in 5 parts of water for 24 hours, filtered and sprayed to control the mites.
5, 9281 is also called Green Tree God Doctor, Funi, made of Chinese and Western medicine and biological fluid compound. Applying 4 times to 5 times solution after scribing on the disease, the effect of treating rot disease is better.
Second, microbial pesticides
1. Agricultural anti-120 microbial fungicide is a metabolite of radiobacteria. 4% fruit tree special type 600 times ~ 800 times liquid spray can control apple powdery mildew, apple and rust, anthracnose and so on. Applying 200 times solution to the disease can treat rot disease well. Nongkang 120 contains more than 10 kinds of amino acids, which can also play a role in strengthening disease resistance after application.
2, multi-antimycin (polyoxymycin, Bao Li'an) 10% anti-mycin WP 1000 times liquid spray can prevent apple spotted deciduous disease; apple bud period to after falling, even spray 2 times can prevent Apple mildew.
3, Liuyangmycin 10% Liuyangmycin EC 1000 times liquid spray can control Starscream.
4, Bt (Bacillus thuringiensis) bacterial insecticide Bt emulsion 500 times liquid tree spray, can control the leaf caterpillars on the fruit trees, the larvae of the heartworm, etc., plus 0.1% washing powder effect is better.
5, avermectin (qiqisu, insect light) antibiotics produced by microbial fermentation. The spider mites are sprayed with 1.0% Avermaria emulsifiable concentrate 4000 times, especially for the controllable two-spotted spider mites (white spiders).
Third, microbial pesticides
1. Agricultural anti-120 microbial fungicide is a metabolite of radiobacteria. 4% fruit tree special type 600 times ~ 800 times liquid spray can control apple powdery mildew, apple and rust, anthracnose and so on. Applying 200 times solution to the disease can treat rot disease well. Nongkang 120 contains more than 10 kinds of amino acids, which can also play a role in strengthening disease resistance after application.
2, multi-antimycin (polyoxymycin, Bao Li'an) 10% anti-mycin WP 1000 times liquid spray can prevent apple spotted deciduous disease; apple bud period to after falling, even spray 2 times can prevent Apple mildew.
3, Liuyangmycin 10% Liuyangmycin EC 1000 times liquid spray can control Starscream.
4, Bt (Bacillus thuringiensis) bacterial insecticide with Bt emulsion 500 times liquid tree spray, can control the leaf larvae of the fruit tree, the larvae of the heartworm, etc., plus 0.1% washing powder effect is better.
5, avermectin (qiqisu, insect light) antibiotics produced by microbial fermentation. The spider mites are sprayed with 1.0% Avermaria emulsifiable concentrate 4000 times, especially for the controllable two-spotted spider mites (white spiders).
4. Animal sources and specific pesticides
1. Inactivated jumilone 3, 25%, 2% chlorpyrifos 3, suspension of 2000 times liquid spray, control of leaf-eating caterpillars; spray with 1000 times to 2000 times of liquid before adult spawning, control and control of gold leaf moths and other leaf miner moths ; use 800 times liquid spray to control the heartworm and so on.
2, moth lingen is made up of chlorpyrifos No. 3 and 15% broom. In addition to the control of the young urea 3, it can also control red spiders.
3, inhibition Taibao (fixed insects) 5% inhibition Taibao 1500 times liquid spray, can control the heartworm.
4, anti-èšœå¨ 50% anti-èšœå¨ 2000 times liquid spray to control aphids.
Finally, the Chinese pesticide network Xiaobian warm reminder: When spraying bio-pesticide, be sure to master the temperature above 20 °C. According to the test, the effect of bio-pesticides after spraying at a temperature of 25-30 °C is 1-2 times higher than that at 10-15 °C.
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