Nowadays, bio-pesticide in China has been widely used. However, due to improper selection of pesticides, or the selection of reasonable bio-pesticide for pest control, the use of pesticides to control pests and diseases is poor, and today, Xiaobian says that effective prevention and control of organic vegetables Biological pesticides for pests and diseases.
1 Characteristics of organic vegetable production
The temperature inside the shed is high, the humidity is high, the light is weak, the air mobility is poor, the pests and diseases are vulnerable, the pests and diseases are many, and the damage is serious.
2 Biological pesticides and mechanism of action
a. Biological pesticides are biologically active substances produced by living organisms or biological metabolism. They have insecticidal effects such as contact, stomach poisoning, food refusal, sterilization, attraction and repellent, and can effectively inhibit mycelial growth, spore germination and spread. .
b. Biological pesticides are characterized by high efficiency, safety and environmental compatibility.
3 Biological pesticide types and control objects
3.1 Biological insecticides and control objects
3.1.1 Common pests
Aphids, cabbage caterpillars, borer insects, rapeseed meal, sassafras, leaf miner, whitefly, yellow stripe, scorpion horse, yellow squash, earth tiger, scorpion, scorpion, etc.
3.1.1.1 Pest Control
a, aphids, thrips, rapeseed meal and cabbage caterpillars and other pest control agents
Pyrethrin has a powerful contact and paralytic effect.
b. Pest control agents such as whitefly, cabbage caterpillar, leaf curler, and rapeseed meal
Cucurbitine is a low-toxic insecticide with stomach poisoning and contact toxicity.
c, lepidopteran, homoptera, hymenoptera and other pest control agents
Beauveria bassiana is a non-toxic fungal insecticide that has the function of contacting insects, invading the body, affecting blood circulation, and interfering with metabolic fatal pests.
d. Pest control agents such as underground pests, ground tigers, golden worms and cockroaches
Metarhizium is a low-toxic insecticide, and the dosage form is a powder. It is mainly used to make toxic soil to kill underground pests.
e, red (yellow) spider, sassafras, rust tick and other pest control agents
And spirulina are low-toxic acaricides with contact toxicity and can be used interchangeably.
f, melon flies, mites, mites and other pest control agents
Rotenone is a moderately toxic plant-derived insecticide with contact and stomach toxicity.
3.2 Biological fungicides and control objects
3.2.1 Common diseases
Downy mildew, gray mold (foliar), powdery mildew, blight, rust, blight, anthracnose, black rot (spot); angular disease of bacterial diseases, soft rot; viral disease and Radical nematode disease, etc.
3.2.1.1 Biological fungicide
a, biological fungicide for controlling fungal diseases
Several low-toxic fungicides such as polymycin, xylomycin, guanidine, Wuyincin and Nongkang 120 can effectively prevent fungal diseases.
b. Biological fungicide for controlling bacterial diseases
Zhongshengmycin and hydratedmycin have strong penetrating effects on bacterial wilt, soft rot, ulcer disease and scab.
4 Essential points for efficient use of biological pesticides
Symptomatic selection of drugs, timely use of drugs, scientific use of drugs, to achieve the right amount, uniform application.
White Sesame Oil,Ground Sesame Seed Oil,White Sesame Seed Oil,A Grade Sesame Oil
Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com