Get twice the result with half the effort with half the effort to control rice diseases and pests in winter

In winter, rice diseases and pests are dormant: pests stop feeding and germs stop infecting. If farmers seize this favorable opportunity to carry out prevention and control, they can achieve twice the result with half the effort.

First, deal with diseased straw. Diseased rice straw is the overwintering place of pathogens of many diseases, such as bacterial leaf spot, bacterial blight, rice blast and so on, and is the main source of infection in the second year. Before the end of March, farmers can compost diseased rice straw at high temperature, or for feed and fuel treatment, which can greatly reduce the number of bacteria. For the diseased straw that can not be treated before the end of March, in order to prevent the spread of germs, it can be moved to indoor storage, or covered with plastic film on the spot, and should not be stored in the open air, let alone used to build houses, build sheds, cover seedlings, cover seedlings, and so on.

Second, deal with rice paddy. Rice borer is the overwintering place of Chilo suppressalis and some Chilo suppressalis and Chilo suppressalis. Therefore, the effective paddy fields should be collected and treated by picking, hoeing, digging and other methods before and after the Spring Festival. For green manure seedlings, the pupae should be killed by irrigation at the peak period of pupation of overwintering borer. The green manure field should be turned over and pressed in the peak period of emergence of the second generation borer.

Third, deal with the intermediate host. Zizania caduciflora is widely distributed in rice areas and is the main overwintering place for Chilo suppressalis. Corn straw and ear shaft are the main overwintering places of Chilo suppressalis. Therefore, the above-mentioned overwintering rice pests can be eliminated by cutting off the residual plants of Zizania caduciflora in early spring, combining with fertilizer treatment of corn straw, ear axis and weeds on the edge of the field.