Method for preventing cutworms in film covered crop fields

Abstract

The invention discloses a method for preventing cutworms by using mulching films. The method comprises the following steps of: diving a farmland into a cropping region and a spraying region, wherein the spraying region and the cropping region are arranged at interval, or the spraying region surrounds the cropping region, the mulching films are arranged at the spraying region, and the flat inclined angle of the spraying region is less than 5 DEG; and uniformly spraying 1000-1500-folded solution of 2.5% efficient cyhalothrin emulsifiable concentrate and 1000-1500-folded solution of ethyoxyl modified trisiloxane on the mulching films at the spraying region, wherein the spraying time is 6-8pm, the pesticide spraying dosage is 30-45 kg / mu, the spraying period is 5-7 days, and the frequency is 2-3 times. The method is used for preventing the cutworms, and has the advantages of high efficiency of a pesticide directly-spraying insecticide method and low pesticide residue of a trapping method; by the method, the labor power, the material resource and the financial resources are greatly saved, the damage of cutworm larva on the field crops is reduced; and the method helps crop increment, and is simple in operation, strong in practical applicability and convenient to popularize.

Description

technical field [0001] The invention relates to the field of farmland pest control, in particular to a method for preventing cutworms in film-covered crop fields. Background technique [0002] During the growth of crops, it takes a lot of manpower, material and financial resources to control and kill pests. As a common pest, cutworms do serious damage to crops. There are many types of cutworms. Tiger larvae lurk in the shallow soil during the day and come out at night to nibble on the tender stems, leaves and shoots of crops, causing a large number of dead seedlings of crops in severe cases. [0003] Common control methods include spraying pesticide chemical methods to kill insects or sweet and sour liquid, black light trapping and other methods. Although spraying pesticides has a certain effect, it will cause a large amount of pesticide residues if sprayed on the stems and leaves eaten by cutworms; sweet and sour Trapping with liquid or black light will not cause pesticide...

AI Technical Summary

Problems solved by technology

[0002] During the growth of crops, it takes a lot of manpower, material and financial resources to control and kill pests. As a common pest, cutworms do serious damage to crops. There are many types of cutworms. Tiger larvae lurk in the shallow soil during the day and come out at night to eat the tender stems, leaves and buds of crops, causing a large number of dead seedlings in severe cases

[0003] Common control methods include spraying pesticide chemical methods to kill insects or sweet and sour liquid, black light trapping and other methods. Although spraying pesticides has a certain effect, it will cause a large amount of pesticide residues if sprayed on the stems and leaves eaten by cutworms; sweet and sour Liquid or black light trapping will not cause pesticide residues, but this method is time-consuming and labor-intensive and the effect is not very good

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