Rice field pest control measures

1, a comprehensive anti-mouse and pick governance combination.

Successful control of early maturing rice fields and rodent pests adjacent to fish ponds, orchards, river embankments, highways, hillsides, abandoned farmland, livestock farms, villages, factories, and eating places is the key to the success or failure of pest control. Before the paddy field is drained and exposed, the density of rodents is high and the spatial distribution is relatively balanced. Therefore, comprehensive rodent control should be carried out, and the density of rats in various local ecological environments should be reduced below the prevention and control index. In the late stage of rice growth, according to the hazards of rodents gathered in a few paddy fields, the mouse density is far above the prevention and control index, and the characteristics of the damage is heavy. These rice fields must be subject to treatment so that the rat damage rate is lower than the allowable level of economic losses and achieve comprehensive The purpose of effective control of rodents.

2, do a good job of the timing of chemical rodent control.

According to the changes in the number of harmful rats and the law of harm, we must thoroughly eradicate the rats 2 times a year. The first rodent deterrence should be conducted before the early rice planting or the early rice irrigated field till the rice returning green childbirth period; the second time the rodent is in the late rice returning green childbirth period. Direct seeding of rice and early rice seedlings are broadcast in the villages and towns in the contracted fields of each household. Before the sowing, we must thoroughly eradicate the rodents to protect rice seeds and achieve seedlings and seedlings. The villages and towns that have concentrated on breeding and throwing rice dumplings can be eradicated during the period from early rice irrigating to returning rice to returning green crops. At this time, the pests will be concentrated on the field ridges, and the poisoning and killing of rats will be more effective. Picking and controlling rodents were carried out during the early and late rice ear ear formation.

3. There are particularities in the poison valley that has been chosen for rat poisoning.

During the period of flood irrigation and rice returning to Qinghai, the pests are active on the field ridges, and poison valleys should be put on field ridges to effectively kill the rodents. However, when paddy fields were used to treat rice fields, the rice fields were dry and wet, and the rats were allowed to enter the water-free rice fields. Most of them were active and harmful in the fields, and they were less active in the fields. If only the poison valleys were placed on the fields, there were only a few mouse rats. Encountered poison valley, can not achieve the purpose of effective control of rat harm. Only poisonous valleys can be placed in the habitats of rodent pests, rats on rice fields, irrigation and drainage fields of rice fields, fields under fields, and rice damage sites. Rats can quickly find poison valleys and feed on them; as pests continue to move into rice fields, Therefore, the poison valley must be continuously placed until there is no new rodent strains to fully control the rodent damage.