The main pests during wheat storage are wheat moths, corn elephants, gluten, Otani thieves, and red pirates. Due to the high temperature during the wheat harvest season, it is conducive to the growth and reproduction of stored grain pests, which seriously affects the quality of stored wheat. The commonly used methods of prevention and control are as follows.
First, the heat into the warehouse to kill insects: through the exposure and storage process, killing pests and germs. The specific method is: using high-temperature exposure of wheat in summer, the wheat temperature reaches 50-52 ° C, and keeps for 2 hours, then quickly puts it into the warehouse, and after flattening the grain surface, the surface of the grain is covered with a sun-heating mat, a straw curtain, etc., and the doors and windows are kept closed.
Second, low-temperature closed insecticide: the wheat is naturally ventilated or mechanically ventilated after the autumn cool, and then cooled, sealed, to eliminate winter pests, delay the impact of high temperature, the effect is good.
Third, natural anoxic insecticide: wheat after 20 to 30 days of closed natural anoxic, oxygen concentration can be reduced to 1.8% to 3.5%, can achieve the purpose of pest control, mildew.
Fourth, the agent fumigation insecticide: the conventional storage of wheat warehouse using aluminum phosphide dosage is about 15 grams / ton. Each piece of 3.3 grams can be fumigated to 300 kilograms of wheat. After 4-7 days of airtight ventilation, the ventilation time should not be less than 4 days.
5. Other methods of insecticide: For the storage of a small amount of seeds, the following methods can be used.
1. Spray 50-100 times of 80% dichlorvos EC on newspapers covered with seeds, seal for 2-3 days, then uncover the newspaper to disperse.
2. When the corn is harmed, first expose the wheat seed, then use 20 grams of malathion to 500 grams of water and mix 500 grams of wheat bran. Mix the poisoned wheat bran into the seed and put it into the warehouse together.
Huaxian County Shang Hongyan
First, the heat into the warehouse to kill insects: through the exposure and storage process, killing pests and germs. The specific method is: using high-temperature exposure of wheat in summer, the wheat temperature reaches 50-52 ° C, and keeps for 2 hours, then quickly puts it into the warehouse, and after flattening the grain surface, the surface of the grain is covered with a sun-heating mat, a straw curtain, etc., and the doors and windows are kept closed.
Second, low-temperature closed insecticide: the wheat is naturally ventilated or mechanically ventilated after the autumn cool, and then cooled, sealed, to eliminate winter pests, delay the impact of high temperature, the effect is good.
Third, natural anoxic insecticide: wheat after 20 to 30 days of closed natural anoxic, oxygen concentration can be reduced to 1.8% to 3.5%, can achieve the purpose of pest control, mildew.
Fourth, the agent fumigation insecticide: the conventional storage of wheat warehouse using aluminum phosphide dosage is about 15 grams / ton. Each piece of 3.3 grams can be fumigated to 300 kilograms of wheat. After 4-7 days of airtight ventilation, the ventilation time should not be less than 4 days.
5. Other methods of insecticide: For the storage of a small amount of seeds, the following methods can be used.
1. Spray 50-100 times of 80% dichlorvos EC on newspapers covered with seeds, seal for 2-3 days, then uncover the newspaper to disperse.
2. When the corn is harmed, first expose the wheat seed, then use 20 grams of malathion to 500 grams of water and mix 500 grams of wheat bran. Mix the poisoned wheat bran into the seed and put it into the warehouse together.
Huaxian County Shang Hongyan
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