What are the precautions for the use of insecticides in melon seedlings
Melon seedlings are very sensitive to many pesticides and are extremely prone to drug damage, so be extra careful when using insecticides. Pests such as tramps can use moats to dig a small ditch around the seedbed and cover it with impervious plastic sheet. then irrigation into Shennongbao or Amer to form an isolation zone, with good results (this method comes from farmers) Another method is to sprinkle some Shennongbao or Amer poisonous soil around the seedbed, and the effect is also good. If leaf miners appear, they can be sprayed with a strong stick or killing, and another method is to spray with 1.8% avermectin. If aphids appear in the seedling stage, you can add a bag of stress-resistant yield-increasing agent to Shunshengnong in the above two agents, so that leaf miners and aphids will be completely cured.
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Available pesticides and pesticides for pollution-free vegetables
Biological pesticide: BT, the Chinese name is Bacillus thuringiensis, is a bacterial insecticide. This variety has been fully used in the main vegetable areas of our country and achieved good economic benefits. But at present, there are many BT manufacturers with different quality, so we must choose the variety with good quality when using it. Note: BT is aged at a slightly higher temperature.
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Is it effective to use pesticides on rice and add washing powder
The selection of pesticides for rice is related to operator health, control effect, cost and pollution to environment and rice. 1. Low toxicity is not equal to low efficiency and high toxicity is not equal to high efficiency. The toxicity of pesticides is not divided according to their toxicity to pests, but according to their toxicity to mammals. To harm...
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