Is it effective to use pesticides on rice and add washing powder
The selection of rice insecticides is related to the operator's health, control effect, use cost and its pollution to the environment and rice. 1. Low toxicity is not equal to low efficiency and high toxicity, nor is it equal to the toxicity of high-efficiency pesticides, not according to their toxicity to pests but according to their toxicity to mammals. The effect of pest control should be determined according to the species of pests, the damage mode of pests and the action mode of pesticides. For example, Chilo suppressalis is a Lepidoptera borer that can use egg-killing pesticides at egg stage. Contact and fumigation insecticides can be used to control difficulties after entering the plant after hatching. Insecticides that can be absorbed and transmitted by the plant can be used. two。 Avoid the use of highly toxic pesticides because rice pest control opportunities mainly in the high temperature season, the use of 1605 and other highly toxic or highly toxic pesticides can easily cause operator poisoning or even death and easy to kill pests of natural enemies pollution environment later use may also directly pollute rice. 3. The selection of Bombyx mori toxin pesticides is the first choice of rice insecticides in silkworm-free areas. the common insecticides are Shachongshuang, Shongshou, etc., which have the characteristics of contact, stomach poison, egg killing, absorption and transmission by crops and low toxicity to human and animal fish. In particular, the rapid absorption and transmission of this kind of pesticides through roots is generally stable in water and soil, so the control effect of double dose poisonous soil application in fields with shallow water is better and lasts longer. This kind of insecticide can control many kinds of pests on rice with less toxicity to natural enemies than highly toxic and highly toxic pesticides. However, this kind of pesticide is highly toxic to silkworm, Bombyx mori, so it is necessary to avoid floating and polluting mulberry leaves near the mulberry forest. The application of poisonous soil can avoid drift pollution. Do not use this kind of pesticide in rice fields that can be reached by mulberry trees. You can choose trichlorfon, dimethoate, dichlorvos, cicada powder and paracetamol. 4. For the purpose of increasing efficiency and expanding the scope of prevention and control, the mixed use of mixed pesticides should be based on the principle of no chemical reaction with each other. Bombyx mori toxin pesticides can be mixed with many kinds of fungicides, but disinfectants such as strong chloroform and carbendazim must be used alone. The mixture of Yechuan Powder and Shachongshuang 1 ∶ 1 could increase its toxicity to insects by 1.8 times. Adding washing powder according to 0.05% of the liquid amount can increase the spreadability of Shachongshuang solution on rice leaves by 3 times and greatly improve the control effect of spraying. 5. Precautions: druggers should wear labor protection products to avoid getting wet and wash their bodies and clothes thoroughly after spraying at high temperatures.
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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 they should be extra careful in using insecticides. Pests such as trampolines 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.
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What to know about the use of bacterial biological insecticides
Bt is a kind of bacterial biological insecticide often used in vegetable production, which is particularly effective in controlling Lepidoptera larvae, but we should pay attention to the following points when using it: 1. To see whether the quality of Bt is up to standard, we can use "smell" to test. Normal Bt products have a certain amount of bacteria, when opening the lid.
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