How to prevent warehouse pests?
The prevention and control of quarryworms should adhere to the principle of “prevention as the mainstay and comprehensive prevention and control†and focus on the following aspects: (1) Clearance and disinfection: Maintaining environmental sanitation is the basis for the prevention and control of quarantine pests. Three do not stay (weeds, sewage, rubble pieces)." The specific measure is to thoroughly clean the warehouse before the seeds are put into storage, remove the insect nests, clean the equipment in the warehouse, and use chemical agents for complete disinfection. (2) Physical and mechanical control: including high-temperature insecticide, low-temperature frozen insecticide, confined anoxic insecticide, dry insecticide, insecticidal cover and mechanical disinsect. Physical and mechanical control is simple and easy, but it cannot completely eliminate pests. (3) Chemical prevention and control: Chemical control is an effective measure for efficient, rapid and thorough extermination of insects, but it requires warehouses to have better confined conditions and strict operating procedures. Currently used chemical agents are aluminum phosphide and high-efficiency malathion. The dosage of aluminum phosphide is 4-6 g/m3 (powder) or 6-9 (tablets), and it is evenly placed on and around the seed pile (avoid contact with liquid water, otherwise it may lead to spontaneous combustion Explosion) When wearing a gas mask, use a gas mask. Close the doors and windows after the injection. After 3-7 days, open the doors and windows for 3 days. High-efficiency malathion, also known as insect-resistant phosphorus, is applied in two ways: First, ultra-low-volume sprays are performed using stock solutions, that is, when the seeds are in storage, they are sprayed on the side of the storehouse, and the thickness of each seed layer is controlled at 30 cm. Within. The second is to spray the raw liquid on the lotus root, and then take 0.1% of the seed weight and sprinkle it evenly in the seed heap. In addition to aluminum phosphide and insecticide-resistant phosphorus, dichlorvos and trichlorfon can also be used to control worms.