Storage pest control techniques

1. Do a good job of environmental hygiene. Keep the granary and food bag dry and clean. Keep no weeds, garbage, and sewage near the outside of the storage and storage bag, block all holes and gaps, maintain environmental sanitation, remove the growth and breeding sites of food pests, and eliminate hidden insect sources. .

2. Low-temperature freezing insect removal. Grain pests generally stop at an ambient temperature of 8°C and 4°C, and at a temperature of 4°C and 1°C are in a state of cold paralysis (hibernation). Below -4°C, they can die. Its method: 1 outside the stalls of frozen insecticide. Choose cold and dry sunny days, and at around 5 pm, spread food on the floor every 12 hours. Before the next frost, the food is piled up to prevent flooding. The next day before the sunrise, the cold storage, and then close the granary to keep the temperature low. The freezing time can be determined according to the grain temperature and the death of pests. Generally, freezing is carried out after 23 days of continuous freezing, and the insecticidal effect is better. 2 ventilation and insecticide in the warehouse. On cold sunny days, open the doors and windows of the warehouse to ventilate and change the surface of the grain, or use mechanical ventilation to accelerate cooling. When grain falls close to the lowest outside temperature, the grain surface is sealed, doors and windows are sealed, and insect pests or insect pests are kept frozen at low temperatures.

3. Mechanical worms. It is the use of windmills, screens, and other machinery to remove pests and impurities from food. As long as the rotation speed of the windmill, grain flow, and size of the screen are properly selected, the effect of removing insects is very good.

4. Seal insects. 1 Oxygen-enclosed. Using plastic film to seal the grain piles newly harvested into storage, using food respiration, the oxygen content in the grain piles will be reduced, and the pests will suffocate and die. Note that the plastic film is not broken during seal keeping, and the frost inside the film and the pest control effect are often checked. After winter, the film can be peeled off for storage. 2 gland closed. After the new grain is put into storage or before the emergence of the moths of the early spring each year, the piles of food piles are closed, so that the adult eclosion can't move and die. This method should only be carried out on grain piles that meet the standard of moisture, good grain quality, normal grain temperature, no beetles or very few beetles.

5. High-temperature sunlight exposure. The use of insect pests to respond to temperature can be eliminated by means of exposure, except for rice, peanuts and flours. This method can be used for other foods and oils. In other words, select sunny days and sweep the field clean. After the site is hot, dry the food on the field and dilute it. When the grain temperature reaches 48°C or above, turn it on for 12 hours, then pile up the food and keep it in the grain pile. High temperature kills pests. When the grain temperature drops to close to the temperature, store it again. Wheat and peas can be stored hot and closed.

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