What kind of pesticide is used to treat green insects?
Green insect is a worldwide migratory pest, which mainly harms cabbage, purple cabbage, broccoli, cauliflower, mustard, cauliflower, cabbage, rape, radish and other vegetables. So what kind of pesticide is used to treat green worms?
What kind of pesticide is used to treat green insects?
Chlorobenzamide, indenyl, Avir. Chlorobenzamide, Helicoverpa armigera nuclear polyhedrosis virus, fluorodiamide, tetrachloroamide, etc. are recommended for the control of green worms. Single-component pesticides should not be used for a long time, alternate use of different components of pesticides to reduce pesticide resistance, during the incubation period of pests or when the age is small. The details can be as follows:
In the period of 1st and 2nd instar larvae, that is, the larvae were not eaten into the fruit, the larvae were killed before the fruit decay. You can choose 2.5% deltamethrin EC 2000 times, 2.5% cyhalothrin EC 2000 times, 4.5% cypermethrin EC 1500 times, 5% cypermethrin EC 2000 times, 35% Nongmont EC 2000 times, 10% chrysanthemum and horse EC 1500 times, 48% loxobenzene EC 1500 times, 21% germicidal EC 4000 times, etc., sprayed in the evening, each drug can only be used twice a season, rotating drugs to slow down the resistance of pests.
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How to reproduce Pinellia ternata
Pinellia ternata, also known as Diwen, is a traditional Chinese medicine with dryness and dampness, reducing expectoration, reducing vomiting and relieving vomiting. It is planted in many areas, so how does Pinellia ternata reproduce? 1. Tuber propagation and cultivation of Pinellia ternata for 2 or 3 years, and underground tubers can be controlled after falling seedlings in June, August and October every year.
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How to treat the disease of prickly ash tree?
In the process of planting prickly ash, the most important thing to pay attention to is the prevention and control of diseases and insect pests. So, how to treat the disease of prickly ash tree? 1. How to treat the disease of Zanthoxylum bungeanum 1. Root rot can be treated with 15% vermicellin wettable powder 300-80 in April when the pathogen begins to infect.
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