Prevention and treatment process for oilseed rape diseases, pests and weeds in early winter

Abstract

The invention relates to the technical field of oilseed rape disease, weed and pest control, in particular to a prevention and treatment process for oilseed rape diseases, pests and weeds in early winter. The prevention and treatment process comprises the following steps that 1, soil for planting oilseed rape is turned by using soil turning equipment, grass roots growing in the soil are turned out in the soil turning process, and airing is carried out for 5-8 days; 2, a herbicide is sprayed to the turned soil, 20% aqueous prometryn is diluted by 1000-1200 folds, and the turned grass roots in the soil and unearthed weeds are removed through spraying; 3, before the soil for planting the oilseed rape is turned, a 0.6% toosendanin insecticide missible oil solution with the volume being 600-1000 folds, a 90% trichlorfon solution with the volume being 800-1000 folds or a 50% phoxim missible oil solution with the volume being 800-1000 folds are sprayed to treat worm eggs in the soil; and 4, oilseed rape seeds are sown, and plant ash and cow dung are uniformly spread on the surface of the soil. According to the prevention and treatment process for the oilseed rape diseases, pests and weeds in early winter, insect pupae and eggs surviving in the soil can be killed, the phenomenon that larvae gnaw roots is avoided, growth of weeds is reduced, the growth environment of the oilseed rape is guaranteed, and therefore the yield of the oilseed rape is increased.

Description

technical field [0001] The invention relates to the technical field of prevention and control of rapeseed diseases, insect pests and weeds, in particular to a process for preventing and treating diseases, insect pests and weeds of rapeseed in early winter. Background technique [0002] Rapeseed is a herbaceous crop of the genus Brassica in the family Brassicaceae. It is widely planted all over the world. The stems of rapeseed are erect and branched. The petiole is 2.5-6 cm long. The middle and upper stem leaves gradually change from oblong to lanceolate. Heart-shaped, pedicels 6-12 mm long, fruit stalks about 2 cm long, flowering period 3-4 months, fruiting period 4-5 months. [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 elimin...

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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