Method for preventing and treating chilo suppressalis for overwintering-generation rice by aid of trapping processes

Abstract

The invention provides a method for preventing and treating chilo suppressalis for overwintering-generation rice by the aid of trapping processes. The method includes steps of selectively utilizing land parcels in the centers of ridge farmlands as concentrated trapping and killing fields; applying slow-release compound fertilizers to the rice in each mu of the fields when the concentrated trapping and killing fields are prepared; soaking seeds of the rice, accelerating germination and sowing the seeds when the air temperatures are stably higher than 12 DEG C; additionally applying urea to the rice when three leaves and a core grow on each rice plant; determining additionally applied urea or compound fertilizers according to leaf colors at tillering stages of the rice; preventing and treating the chilo suppressalis by the aid of efficient, low-toxicity and low-residue chemical agents when dead sheaths appear in the fields at chilo suppressalis egg mass hatching late stages. The slow-release compound fertilizers are used as base fertilizers. The urea additionally applied to the rice when the three leaves and the core grow on each rice plant is used as an additional fertilizer. The method has the advantages that rice feeding biological characteristics and tender green approaching living habit of the chilo suppressalis are utilized, the seeds are sowed in advance, accordingly, growth periods of the rice coincide with adult emergence periods of the chilo suppressalis, the chilo suppressalis can be trapped to lay eggs in a concentrated manner and then can be prevented and treated in a concentrated manner, the method is low in pesticide application rate and has excellent environmental and economical benefits, good prevention and treatment effects can be realized, the grain quality and safety can be guaranteed, and the like.

Description

technical field [0001] The invention relates to the technical field of prevention and control of agricultural diseases and insect pests, in particular to a method for preventing and controlling overwintering rice stem borer by trapping. Background technique [0002] Rice stem borer is one of the important pests of rice. It is an oligophagous pest. It is recorded in the data that it can harm various crops such as rice, wheat, and wild rice stem. Chilo borer survives the winter as larvae in rice piles, and when the temperature rises in the second spring, the hibernating larvae of Chilo borer begin to develop and emerge as adults after pupation. Eggs reproduce. At present, the commonly used control method is to apply pesticides to kill the stem borer after it appears, which requires the application of pesticides to all paddy fields infested by the stem borer, which requires a large amount of pesticide consumption, which not only affects the ecology The environment is also unf...

AI Technical Summary

Problems solved by technology

At present, the commonly used control method is to apply pesticides to kill the stem borer after it appears, which requires the application of pesticides to all paddy fields infested by the stem borer, which requires a large amount of pesticide consumption, which not only affects the ecology The environment is not conducive to the food safety of rice

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