A kind of control technology of rape disease, pest and weed in early winter

Abstract

The invention relates to the technical field of prevention and control of rape diseases, insects and weeds, in particular to a process for preventing and controlling diseases, insects and weeds of rapeseed in early winter. The grass roots grown inside are turned out and aired for 5-8 days; Step 2: spray herbicide on the turned soil, dilute 20% water agent Promethazine 1000-1200 times, spray to remove the grass roots turned out in the soil and remove the Unearthed weeds; Step 3: Before turning the soil on the rapeseed, spray 600-1000 times of 0.6% toosendanin insecticidal EC, 90% trichlorfon 800-1000 times or 50% phoxim EC 800 ‑1000 times of liquid is used to treat the worm eggs inside the soil; Step 4: Sow rapeseed seeds, and spread grass ash and cow dung evenly on the soil surface; This process can eliminate the surviving worm pupae and worm eggs in the soil and prevent larvae from eating Root phenomenon, reduce the growth of weeds, ensure the growth environment of rapeseed, thereby increasing the yield of rapeseed.

Description

technical field [0001] The invention relates to the technical field of preventing and controlling diseases, insects and weeds of rapeseed, in particular to a technology for preventing and controlling diseases, insects and weeds of rapeseed in early winter. Background technique [0002] Rape is a cruciferous Brassica herb, which is widely grown around the world. Rape stems are erect, branched, petioles are 2.5-6 cm long, and the stem leaves in the middle and upper parts gradually change from oblong ellipse to lanceolate. Heart-shaped, pedicels 6-12 mm long, fruit pedicels about 2 cm long, flowering in March-April, fruiting in April-May. [0003] Flea beetle is one of the pests that endanger the normal growth of rapeseed. The adults of the yellow-striped flea beetle eat leaves to form holes and cause the rapeseed to wither. The insects on the soil surface are eliminated, but the eggs and pupae in the soil cannot be effectively eliminated. The adults of the yellow-striped flea...

AI Technical Summary

Problems solved by technology

[0003] The yellow flea beetle is one of the pests that endanger the normal growth of rapeseed. The adults of the yellow flea beetle eat the leaves and form holes, causing the rape to wither. The larvae eat the roots and can make the rape seedlings die. The insects on the soil surface cannot be eliminated effectively, and the eggs and pupae in the soil cannot be effectively eliminated. The adults of the yellow flea beetle eat the leaves and form holes, causing them to wither. The larvae eat the roots and cause the seedlings to die, which affects the growth of rapeseed , when weeding with herbicide before planting, the herbicide can only remove the grass on the surface of the soil, but cannot completely remove the root of the grass, so spraying the herbicide cannot effectively achieve the purpose of weeding for a long time, and it needs to be sprayed repeatedly from the hair, which is time-consuming It is laborious, and the weeding effect is not good. When spraying the diluted medicine, the medicine is sprayed in the form of water mist, which is easy to disperse in the air and affects the health of the staff.

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