Safe and circulating disease and pest prevention and control method for organic rice

Abstract

The invention provides a safe and circulating disease and pest prevention and control method for organic rice and belongs to the technical field of organic agriculture. The method is characterized in that agricultural prevention and control methods such as rice field-upland field rotation, resistant rice seeds, ploughing and soaking for a long time for killing stem borers and cultivation of strong seedlings are adopted according to rice growth and disease and pest occurrence rules, biological prevention and control methods of stocking of fish fries and tadpoles and biological modelling utilizing a sex attractant are adopted, a physical prevention and control method of mounting of insecticidal lamps and yellow sticky traps is adopted, plants are combined for protecting copper sulphate products, 100 billion spores per g of bacillus subtilis, bordeaux mixture, 40 billion spores per g of beauveria bassiana WG and 0.3% sophocarpidine EC, and special and circulating prevention and control on diseases and pests are carried out. The method provided by the invention has the advantages that the problems that prevention and control means on the diseases and pests of the organic rice are less and the effect is poor are effectively solved, the control efficiency on rice plant hoppers is more than 80%, the control efficiency on rice leaf folders, the stem borers and weevil larvae is more than 90%, the control efficiency on rice leaf blast is 60%, the control efficiency on neck blast is 80%, the large-scale yield increase is 10%, and safe and efficient internal circulation of prevention and control on the diseases and pests is realized, so that the aim of protecting ecology is achieved.

Description

technical field [0001] The invention belongs to the technical field of organic agricultural production, and in particular relates to a method for the safe cycle prevention and control of organic rice diseases and insect pests. Background technique [0002] According to the irrigation conditions, the rice growth environment is divided into four ecological types: irrigated rice, rain-fed rice in low-lying fields, floating and deep-water rice, and upland rice. Among them, the growth of rain-fed rice in low-lying fields is mainly affected by factors such as rainfall, drought, flood, and land barrenness; floating rice and deep-water rice are affected by drought in the early stage of growth, long-term floods and weeds in the later stage, and drought and weeds are the growth limits of upland rice. factors, while the growth of irrigated rice is relatively less affected by climate factors, mainly by biological factors, such as rice blast, rice stem borer, rice planthopper, and weevil...

AI Technical Summary

Problems solved by technology

The leading insecticide Suterin is fermented with an excellent strain of Bacillus thuringiensis. Its limitation is that it has poor quick-acting effect, and it takes about 2 days after the pests eat it. It lasts for about 1 day and is not sensitive to older larvae that are more harmful , short field duration, and unstable genetic traits of recombinant engineered strains have all become restrictive factors affecting its further successful promotion and use