Combined prevention agent for preventing cutworm insect pest

Abstract

The invention discloses a combined prevention agent for preventing the cutworm insect pest. The combined prevention agent is prepared from, by weight, 2%-8% of chitosan, 3%-9% of mugwort oil, 2%-5% of matrine and the balance trichoderma viride nutrient liquid which is added until the weight percentage is 100%. The trichoderma viride nutrient liquid is prepared after trichoderma viride is inoculated to a trichoderma viride enrichment medium, and then enrichment spore production culture is conducted. The spore production culture medium is prepared from, by weight, 4% of camphor wood bits, 1% of corn flour, 0.003% of copper hydroxide, 0.05% of magnesium sulfate, 0.01% of manganese sulfate, 0.003% of ferrous sulfate and the balance water which is added until the weight percentage is 100%. The trichoderma viride, accounting for 0.1% of the spore production culture medium, is inoculated. The combined prevention agent has the effect of killing and repelling cutworm-damaged crops, and further has the effects of triggering self protection of the crops, promoting robust growth of the crops and improving the quality of the crops.

Description

technical field [0001] The invention relates to a combined control agent for cutting cutworm pests, belonging to the technical field of plant pest control. Background technique [0002] Cutworm belongs to Lepidoptera and Noctuidae. It belongs to polyphagous crop pests. It mainly bites and damages crops with larvae. Harmful crops include cotton, corn, sorghum, wheat, hemp, alfalfa, tobacco, sugar beet, rapeseed, vegetables, melons, medicinal plants, pastures, forest tree nurseries, are a variety of omnivorous plants, and cutworms that harm crops The common species are small cutworm, yellow cutworm, large cutworm, white-bordered cutworm and police cutworm. At present, the common control methods include physical and chemical pesticide control methods. The physical control method is based on the phototaxis of noctuid. The purple black lamp is combined with sweet and sour liquid to trap and kill adults. The main function is to reduce the population of adults. It is common to use...

AI Technical Summary

Problems solved by technology

Harmful crops include cotton, corn, sorghum, wheat, hemp, alfalfa, tobacco, sugar beet, rapeseed, vegetables, melons, medicinal plants, pastures, forest tree nurseries, are a variety of omnivorous plants, and cutworms that harm crops The common species are small cutworm, yellow cutworm, large cutworm, white-bordered cutworm and police cutworm. At present, the common control methods include physical and chemical pesticide control methods. The physical control method is based on the phototaxis of noctuids. The purple black lamp is combined with sweet and sour liquid to trap and kill adults. The main function is to reduce the population of adults. It is common to use chemical pesticides to kill insects. The main components of chemical pesticides are organophosphorus insecticides such as trichlorfon and pungent Manufactured products such as thion, fenitrothion, and other products, pyrethroid insecticides such as deltamethrin, pyrethrin emulsifiable concentrate and other products, the pollution of soil and groundwater caused by the above-mentioned chemical pesticides is becoming more and more serious. Problems that endanger the environment and food safety are not uncommon. Under the requirements of pollution-free, green and safe food, the above-mentioned chemical pesticides will gradually withdraw from the market. How to find plant sources, biological sources and trace amounts according to the living habits and organizational structure of cutworms It is an important technical problem that plant protection technicians need to study and discuss in depth to produce an efficient method that is environmentally harmonious, non-toxic and residue-free.

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