What are the 10 main stored grain pests?

1. Corn elephant, 2. Grain beetle, 3. Red grain thief, 4. Saw grain thief, 5. Longhorn flat grain thief, 6. Mung bean elephant, 7. Pea elephant.

8, broad bean elephant, 9, big grain thief, 10Black-skinned beetle.

Common stored grain pests include rice black worm, mealworm, corn elephant, pea elephant, broad bean elephant, mung bean elephant, wheat moth, grain beetle, mites, etc.

Stored grain pests are part of the warehouse pests. Warehouse pests refer to a special type of pests that can reproduce independently in dry and undeveloped storage objects that adapt to the warehouse environment. Stored grain pests refer to sojourners.

1.Insecticidal phosphorus: Insecticidal phosphorus is the main agent used in rural areas to control stored grain pests.

It is a highly effective, low-toxicity, low-residue insecticide. The insecticidal phosphorus has a long effect, and it is very effective in controlling corn elephants, sawsaw grain thieves, long-horned flat grain thieves, wheat moths and other stored grain pests. Insecticidal phosphorus is a high-purity malathion used to mix grain, pay attention to the mixing should be uniform, and it is best to mix the medicine before the grain enters the warehouse on the drying field.

It can be sprayed evenly on the grain with a 20ppm insecticide phosphorus solution. The moisture content of the grain should be within the safe moisture standard, that is, the water content should be less than 13%. It is forbidden to mix insecticide phosphorus and dichlorvos, otherwise it will have a toxic effect.

There should be a safety interval of four months after application before it can be processed and consumed.

2.Grain Preservation Phosphorus: Grain Preservation Phosphorus is a grain protection agent developed by the Chengdu Grain Storage Science Research Institute of the State Food Administration, which has a good control effect on grain storage pests, and is especially suitable for rural grain storage.

The ratio of phosphorus dosage to raw grain is 1:2500. That is, each bag of 100 grams of grain retention phosphorus can be mixed with 250 kg of raw grain.

When using grain-preserving phosphorus, the grain must be dry (in line with the safe moisture standard). And the grain is insect-free or basically insect-free.

3.Phosphine.

Phos is a grain protective agent preferred internationally, its chemical name is methylpyrimidine (sulfur) phosphorus, and the common dose for the control of stored grain pests is generally 5ppm.

4.Grain worm (grain protectant).

Guworm net is a compound plant-based insecticide mixed with 4 6 kinds of Chinese herbal medicines as the main raw material and a small amount of chemical agents. It has a strong effect on repelling, avoiding and touching pests. It has an aromatic smell of Chinese herbal medicine.

The insecticidal effect is remarkable. The ratio of the net dosage of cereals to raw grain is 1:2500, that is, each bag of 200 grams of powder can mix 400-500 kg of raw grain.

5.Aluminium phosphide (fumigant).

Farmers commonly use aluminum phosphide tablets for grain storage, about 3 grams per tablet. The dosage is generally calculated as 1-2 tablets (3-6 grams) per cubic meter. Generally, 5 tablets per ton (1000 kg) of grain.

When applying the medicine, the tablets are first packed into a small cloth bag (one piece per bag), the cloth bag is tied tightly with a rope, evenly buried in the grain pile, so that the phosphine is released slowly, and the grain is sealed immediately after application (pay special attention to the sealing around the bottom) to ensure the effect. After fumigation for 5-6 days, ventilation should be carried out for 3-5 days, and the cloth bag should be taken out, and the water source should be far away, and a pit should be dug and buried deep in the soil.

The above agents are only used for storage in raw grains and seed warehouses, and should not be used for finished flour and rice.

<> cereal pests mainly refer to pests that harm corn, sorghum and other gramineous crops, and coarse grains mainly include wheat, soybeans, potatoes, oats, etc. You can choose pest-resistant varieties for planting, and you can also carry out reasonable crop rotation and intercropping, which can also control insect pests. Reasonable fertilization can promote the growth and development of crops, and can improve resistance, pay attention to the use of manure, compost to fully rot, to avoid aggravating pests.

1. Definition of multigrain pests

1. What are cereal pests?

Grain pests mainly refer to pests that harm corn, sorghum and other gramineous crops. Coarse grains usually refer to grains and beans other than rice, wheat, corn, soybeans and potatoes, mainly wheat, soybeans, potatoes, oats, etc.

2. How to prevent and control miscellaneous grain pests.

1) Choose pest-resistant varieties for planting, or use methods such as soaking and fire to dispose of overwintering insect eggs before the pupa emerges in winter or early spring. Reasonable crop rotation and intercropping can also be carried out, which can not only control pests, but also make full use of soil fertility.

2) Reasonable fertilization, which can promote the growth and development of crops, and can improve resistance, in the use of manure, compost to fully rot, otherwise it will lead to residual bacteria in the fertilizer, and underground pests such as grubs and other eggs will not be killed, easy to make underground pests aggravated.

3) Remove weeds in the field in time during the planting process, weed and clean up the field after harvesting, and deep ploughing of the soil, and burn the remaining crops with fire or deep burial, which can reduce the probability of insect pests in the second year.

Second, what are the pests of cereals?

1. Underground pests: underground pests such as grubs, mole crickets, needleworms and ground tigers are the main pests of miscellaneous grain crops at the seedling stage, and they have suffered different degrees of harm in different regions over the years.

2. Armyworm: Armyworm is an important pest of grasses, mainly harming rice and wheat in the south, while corn, sorghum and millet in the north, and also harming wheat crops.

3. Corn borer: Corn borer is a stem borer pest that harms corn, sorghum and millet, and the pest is distributed throughout the country.

4. Locusts: locust pests were the main pests of grasses and grains before 1950, and after taking the measures of "reform and treatment", locust pests have become extinct or reduced to minor pests in many areas, and have not caused harm.

Answer] Zhenyou eggplant: Late grain storage pests refer to grain and processed grains that can only be used for the leftover grains and flour crumbs and mechanical damage that infest the initial pests, and the stored grain pests that occur after the initial pests in the warehouse. Common late-stage grain storage pests include sawsaw grain thieves, flat grain thieves, long-headed grain thieves, etc.