Biological rice disease and pest prevention system design

Abstract

The invention relates to biological rice disease and pest prevention system design and belongs to the technical field of agricultural biological prevention. Mature trichogramma japonicum bred through rice borer eggs are parasitized on the rice borer eggs, stem borer larvae are directly killed, then trap plants are planted on the periphery of field ridges to provide buffer hosts for parasitic wasps and stem borers, winter fallow fields are turned over and tilled to reduce the cardinal number of pest sources, raised rice seedlings are blocked through a pest-proof net and transplanted after being mature, damage caused by apple snails is avoided through duckling feeding activities, and a biological rice disease and pest prevention system is built. As proved by examples, the method is unique and novel, the mode of preventing pests through pests is used in the operation process, no environmental pollution is caused, and the yield of rice fields is increased by over 10%. Besides, the pest removal rate in the rice field can be effectively increased, and the pest removal rate is as high as over 95%.

Description

technical field [0001] The invention relates to a system design for biological control of rice diseases and insect pests, and belongs to the technical field of agricultural biological control. Background technique [0002] Biological control can be roughly divided into three categories: controlling pests by insects, controlling pests by birds and controlling pests by bacteria. It is a method of reducing the population density of harmful organisms such as weeds and pests. It takes advantage of the interrelationships between biological species to suppress another or another type of organisms with one or one type of organisms. Its biggest advantage is that it does not pollute the environment, which is incomparable to non-biological pest control methods such as pesticides. [0003] At present, with the increase of the continuous cropping period of rice fields, rice field insect diseases are becoming more and more serious, and they have occurred in major rice field producing ar...

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Problems solved by technology

[0004] The technical problem mainly solved by the present invention: when insect diseases occur in paddy fields at present, chemical pesticides are mainly used to remove them, but the existence of chemical pesticides is easy to cause residue pollution, and there is a risk of carcinogenesis after people eat them. At the same time, chemical pesticides seriously pollute the environment and have The problem of harming human health provides a design of a biological control system for rice diseases and insect pests. This design uses rice borer eggs to feed mature Trichogramma rice borer parasitism on the rice borer eggs, directly eliminates borer larvae, and then spreads them on the field ridge. Plant trapping plants around to provide buffer hosts for parasitic bees and stem borers, and plow the idle fields in winter to reduce the base of insect sources, use insect-proof nets to block the seedlings after they are mature and transplant them, and add ducklings to eat to avoid damage from apple snails, etc., to establish a kind of The biological control system of rice diseases and insect pests not only does not cause any harm to the environment, but also significantly reduces the number of diseases and insect pests in rice fields, and the annual output of rice fields has also been significantly increased