In recent years, the use of drugs in orchards has also been continuously reformed, and new pesticides have developed rapidly, especially with unique mechanism of action and the fastest development of heterocyclic compounds. Experts pointed out that the application of these pesticides should pay attention to methods.
First, the fungicide
1. Polysulfide sulphide replaces lime sulphur mixture. The active components of strontium polysulfide and stone sulphur mixture are all sulfur elements. The stone sulphur mixture can prevent and control pests and diseases, and polysulfurization can prevent and control, and the control effect is better. In addition, it also has a province. Convenient work, low price, and safety for crops.
2, 12% green milk copper emulsifiable concentrate and can kill 2000 will replace Bordeaux mixture. Green milk copper and can kill 2000 than Bordeaux liquid sterilization spectrum, in addition to the prevention and treatment of a variety of fungal diseases, but also to control bacterial diseases, and the same as Bordeaux mixture does not produce resistance. Both green copper and 2000 can be mixed with most pesticides with strong acidity and strong alkalinity, such as avermectin, imidacloprid, broom, cypermethrin, acesulfame, etc. Bordeaux mixture can not be mixed with other pesticides. Both drugs can enter the inside of bacteria and fungal cells, kill them, and can not enter the plant cells, so it is safe for crops.
3. The triazole fungicide will replace the benzimidazole fungicide. The triazole fungicide has the functions of systemic absorption, activity and protection, not only can prevent powdery mildew and rust, but also has good effects on various diseases caused by basidiomycetes, deuteromycetes and ascomycetes. Efficacy, especially for pear scab, which is difficult to control, is particularly effective.
4. The use of compound fungicides is more and more common. The compound fungicide is compounded by two or more different types of fungicides, which overcomes the shortcomings of a single pesticide. Due to the synergistic bactericidal effect of two or more, the drug effect is increased, the spectrum of prevention and treatment is wide, the dosage is small, and resistance is not easily generated.
Second, insecticides, acaricides
1. The rise of avermectin insecticides and acaricides. Abamectin is an antibiotic insecticide and acaricide produced by fermentation, purification and other processes. It can effectively control red spider, rust, two leafhopper, diamondback moth, cabbage caterpillar, Liriomyza sativae, and leaf miner. Moth, thrips, cotton bollworm, Liriomyza sativae, leaf miner, thrips, cotton bollworm, pear leeches, pear birch, peach aphid, pear small heartworm. Abamectin has contact toxicity, but stomach toxicity is better. It is still effective for pests that have developed resistance to other pesticides, and is safe to humans, animals, and natural enemies. No residue, it is a pollution-free pesticide.
2. The new generation of acaricide imidacloprid is rapidly promoted. Imidacloprid is a new type of highly effective systemic insecticide, which has good control effect on sucking mouthparts such as aphids, pear mites and leafhoppers and lepidopteran pests. Imidacloprid has a stomach poisoning and contact killing effect, which is effective for feeding or contacting pests. Because of its different mechanism of action than most pesticides today, it is sensitive to pests that are resistant to existing insecticides. At present, there are many similar products on the market, their content is different, and the control effect is different. Its high-concentration products have good control effect and long anti-effect period.
3. Diflubenzuron insecticides. This medicine is a pollution-free pesticide. Inhibition of insect mortality by inhibiting insect molting, commercially available as Diflubenzuron No. 3, triflumuron, and the like. They have a contact and stomach toxicity and no systemic action. In addition to being effective against lepidopteran pests, it also has good control effect against coleoptera and dipteran pests, and is safe for humans and animals, does not pollute the environment, and does not kill natural enemies. It is known as a pesticide in the 21st century.
First, the fungicide
1. Polysulfide sulphide replaces lime sulphur mixture. The active components of strontium polysulfide and stone sulphur mixture are all sulfur elements. The stone sulphur mixture can prevent and control pests and diseases, and polysulfurization can prevent and control, and the control effect is better. In addition, it also has a province. Convenient work, low price, and safety for crops.
2, 12% green milk copper emulsifiable concentrate and can kill 2000 will replace Bordeaux mixture. Green milk copper and can kill 2000 than Bordeaux liquid sterilization spectrum, in addition to the prevention and treatment of a variety of fungal diseases, but also to control bacterial diseases, and the same as Bordeaux mixture does not produce resistance. Both green copper and 2000 can be mixed with most pesticides with strong acidity and strong alkalinity, such as avermectin, imidacloprid, broom, cypermethrin, acesulfame, etc. Bordeaux mixture can not be mixed with other pesticides. Both drugs can enter the inside of bacteria and fungal cells, kill them, and can not enter the plant cells, so it is safe for crops.
3. The triazole fungicide will replace the benzimidazole fungicide. The triazole fungicide has the functions of systemic absorption, activity and protection, not only can prevent powdery mildew and rust, but also has good effects on various diseases caused by basidiomycetes, deuteromycetes and ascomycetes. Efficacy, especially for pear scab, which is difficult to control, is particularly effective.
4. The use of compound fungicides is more and more common. The compound fungicide is compounded by two or more different types of fungicides, which overcomes the shortcomings of a single pesticide. Due to the synergistic bactericidal effect of two or more, the drug effect is increased, the spectrum of prevention and treatment is wide, the dosage is small, and resistance is not easily generated.
Second, insecticides, acaricides
1. The rise of avermectin insecticides and acaricides. Abamectin is an antibiotic insecticide and acaricide produced by fermentation, purification and other processes. It can effectively control red spider, rust, two leafhopper, diamondback moth, cabbage caterpillar, Liriomyza sativae, and leaf miner. Moth, thrips, cotton bollworm, Liriomyza sativae, leaf miner, thrips, cotton bollworm, pear leeches, pear birch, peach aphid, pear small heartworm. Abamectin has contact toxicity, but stomach toxicity is better. It is still effective for pests that have developed resistance to other pesticides, and is safe to humans, animals, and natural enemies. No residue, it is a pollution-free pesticide.
2. The new generation of acaricide imidacloprid is rapidly promoted. Imidacloprid is a new type of highly effective systemic insecticide, which has good control effect on sucking mouthparts such as aphids, pear mites and leafhoppers and lepidopteran pests. Imidacloprid has a stomach poisoning and contact killing effect, which is effective for feeding or contacting pests. Because of its different mechanism of action than most pesticides today, it is sensitive to pests that are resistant to existing insecticides. At present, there are many similar products on the market, their content is different, and the control effect is different. Its high-concentration products have good control effect and long anti-effect period.
3. Diflubenzuron insecticides. This medicine is a pollution-free pesticide. Inhibition of insect mortality by inhibiting insect molting, commercially available as Diflubenzuron No. 3, triflumuron, and the like. They have a contact and stomach toxicity and no systemic action. In addition to being effective against lepidopteran pests, it also has good control effect against coleoptera and dipteran pests, and is safe for humans and animals, does not pollute the environment, and does not kill natural enemies. It is known as a pesticide in the 21st century.
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