What are the pests that eat grain to insects, not to mention sparrows, rats and the like

There are more than 100 species of stored grain pests recorded in China, belonging to Coleoptera, Lepidoptera, Cockroaches, Rodents, Tasselyceda, and several families of arachnids. The main species are weevils, beetles, large grain thieves, saw grain thieves, long-horned flat grain thieves, red grain thieves, wheat moths, Indian grain borers and rot cheese mites, with beetles being the most abundant, followed by moths. Some species belong to the phytosanitary objects, such as cereal elephants, potato tuber moths, etc.

A few stored grain pests are monophagous, such as peas that only harm peas. Generally, the food is more mixed, such as the Indian grain borer is harmful to various cereals, cereal flour, peanuts, soybeans and other plant products. The source of insects mainly comes from the pests hidden in the empty warehouse or in the grain storage equipment, the pests that have been infected in the field or during transportation and processing, and the pests entering from outside the warehouse.

In addition to the source of insects, suitable grain species, grain quality, humidity, temperature, especially the purity of grain, are all conditions for pests.

The enemy of the crops.

More than 6,000 pests are reported to damage crops worldwide. There are more than 250 kinds of rice pests, more than 1,000 fruit tree pests, more than 50 corn pests, and more than 300 warehouse pests. Armyworms, locusts, rice borers, corn borers, ground tigers, cotton aphids, wheat suckers, aphids, leafhoppers, planthoppers, scale insects, etc., are all important pests.

The losses caused by pests to agricultural production are quite staggering, with an average annual loss of l0 for crops grown in the wild and an average loss rate of 5 for indoor storage. As far as rice pests in China are concerned, more than 40 million quintals were lost in 1950. Therefore, the fight against pests and the recovery of food from their mouths is an extremely important measure in agricultural production.

During the breeding period, sparrows eat a large number of pests, which can reduce the number of pests and is conducive to food growth. After the sparrows are killed, the biological chain is broken, and the pests multiply in large numbers and eat a large amount of food.

Sparrows are omnivorous birds, mainly feed on the seeds of grasses in summer and autumn, and brooding mainly feed on insects that damage grasses, most of which are lepidopteran pests.

It shouldn't be ......

Sparrows eat food, which is indeed harmful to humans.

However, during their breeding period, they eat a large number of pests, which is also good for humans.

Moreover, the eradication of sparrows destroys the ecological balance.

For all these reasons, the sparrow ...... should not be eradicated

Human beings do not see the potential, long-term benefits for the sake of immediate gain.

The sparrow is dead, and the insect has no natural predators.