Cucumber Diseases and Pests Control and Measures
1. The principle of prevention and control In accordance with the plant protection policy of “prevention-oriented, comprehensive prevention and control,†adhere to the principle of harmless treatment based on “agricultural control, physical control, biological control, and chemical control as supplementsâ€.
2. Main pests and diseases damping-off disease, blight, downy mildew, bacterial angular spot, anthrax, blight, powdery mildew, wilt, gray mold, virus disease, aphids, whiteflies, spotting fly.
3, the use of resistant varieties of agricultural control; the use of a reasonable farming system, rotation for cropping; rational dense planting, ridge planting, strengthening the field management of weeding, weeding, clean gardens, reduce the number of pests and diseases; timely detection of the central disease strains and Cleared, brought deep outside the field.
4, physical control
(1) The yellow board traps and kills the insects such as locusts by hanging yellow sticky board in the field. The size of the yellow armyworm board is 25 centimeters and 40 centimeters, and 30 to 40 units per 667 square meters.
(2) silver gray film to repel aphid silver grey plastic film or hanging silver gray film strip avoiding.
(3) Insect killing lamp killing and killing of insect pests such as Coleoptera and Lepidoptera using electronic insect killer. The height of the insecticidal lamp is generally 1.2~1.5 meters from the bottom of the lamp. The control area of ​​each lamp is generally 1.33ha~2.0ha.
5, biological control using insect pathogenic viruses, nematodes and other pest control and 0.5% veratrine wettable powder 600 ~ 800 times liquid, matrine, azadirachtin and other plant-derived pesticides and agricultural streptomycin, neomycin, etc. Microbial sources of pesticides to prevent pests and diseases.
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