The common pests of stored grain include rice black worms, mealworms, corn elephants, peas, beans, green beans, wheat moths, fools, and crickets. The main control methods: 1, closed pest control altar, cylinders, urns and other grain storage, plastic film can be sealed, fastened and sealed with mud. Thick (0.14 mm) film can also be used, welded to a double plastic bag with a soldering iron, and after filling with food, the bag is repeatedly tied with a string. After such confinement, it can use the vigorous respiration of food to gradually deplete oxygen, create an oxygen-deficient or hypoxic state, and suppress the reproduction of pests, thus achieving safe grain storage. 2. The glands are mainly used to prevent moth pests, especially wheat moths. The food is properly covered so that moths do not lay eggs and no larvae can harm the grain. The capping time should preferably be performed immediately after the newly harvested rice, corn, wheat, etc. are put into storage. The sun-dried sand is put into a sack or a plastic bag and laid flat on the surface of the grain, so that the lid is tight, tight, dense and solid. It is also possible to lay a layer of kraft paper on the flat surface of the grain and evenly cover 10-15 cm of ash on the paper. 3. Ginger Pest Control Ginger has a strong stimulatory effect on stored grain pests and can inhibit pest activity. The ginger is cut into pieces, dried and placed on the surface of the grain, and 200-250 grams of ginger is placed per 100 kilograms of grain. Then, tightly cover the container of the ration, good pest control effect can be obtained. 4, kelp pest control 100 kg of food (rice, wheat, corn, rice, etc.) put 0.8-l kg of dried kelp, can absorb water, kill pests. According to the measurement, dry seaweed in grain can absorb 3% of water in grain within 7 days, killing more than 90% of earthworms and moth pests. 5, pepper pest control with a small bag, containing 10-15 grams of new pepper, into the storage of food in the altar, if the use of cylinders, alfalfa storage, can put a few more bags, covered with a lid, can effectively prevent pest infections . 6, exposure to insecticidal exposure is solar radiant heat on the body of the body, destroy the body structure and life function, so that the death of pests. At the same time, the sun exposure also has the effect of moisture and mildew. This method can be used for food pests such as wheat, corn, peas, and beans. Choose hot sunny days, spread the food on the easy-heating drying area. We must thin and dilute the ground and raise the grain temperature to about 48°C, continue turning for 3-4 hours at this temperature, and then gather the food hot to maintain the high temperature inside the pile. dead. When the grain temperature drops to near atmospheric temperature, remove the impurities and dead insects with a windmill or a sieve, and then put it into storage. 7, the amount of insecticide in boiled water, peas, beans, mung beans and other insects can be used this method, insecticidal effect is very good. Burn a proper amount of boiled water first, and keep the pot boiling water temperature, and then put the moth-eaten beans in a basket or bamboo basket, soaked in boiling water, and stirring constantly to make it heated evenly, after scalding for half a minute ( Note: If the scalding time is too long, the germ will be killed and the germination power will be lost. Immediately immerse in the prepared cold water, cool it and then dry it, then store it in a tightly closed container. 8. Pharmaceutical insecticides The agents used to kill pests in stored grain are selected strictly. They must have two important conditions: First, chemical properties are relatively stable and they are not easy to explode and burn; second, they can kill a variety of pests and have no residual poisons. Or remnants are minimal. At present, the pesticide pesticides used in farms mainly include aluminum phosphide and insecticide-resistant phosphorus. 1 aluminum phosphide insecticide. This medicine is available in powder and tablets. It can absorb the water vapor in the air to produce phosphine gas, which produces highly effective poisoning to pests. Fumigation rice, corn, wheat, sorghum, etc., 3-6 grams (1-2 tablets) per cubic meter of storage capacity; fumigation peas, beans, mung beans, etc., 6-9 grams per cubic meter storage capacity, can handle food 600-750 kg. The method is to put a layer of kraft paper on the surface of the surface of the grain pile of the sealed device, quickly put the aluminum phosphide on the paper according to the calculated drug dosage, and immediately close the device. If food is packed in plastic bags, use a string to fasten the bag. After 5-7 days of closed fumigation, all pests in the grain can be killed. After 7 days, it can be opened and poisoned. 2 pest control insecticide. The pests of various raw grains and seed grains such as rice, wheat and corn can be effectively controlled by insect-resistant phosphorus. Select clean and dry rice hulls at a ratio of 1 kg rice husk for 1000 kg of grain, spread the rice husk on the floor 1-2 days before use, and spray the required chemicals (without water) into the whole area with an ultra-low volume atomizer. Piles of rice husk can be used after being dried. The storage of grain is to uniformly withdraw the medicine shell into the grain. Generally, a basket of grain can be withdrawn into a medicine shell. No stirring is required after application. China Agricultural Network Editor
Clotrimazole Factory,Triamcinolone Acetonide,Pharmaceutical Raw Material
Hormone/Steroides Co., Ltd. , http://www.hbsteroids.com