Cucumber blight is a fungal disease. It is usually overwintering in the soil or on sicknesses and bodies. The roots and leaves are soaked in the implants and transmitted through wind and rain or irrigation. It mainly damages leaves, stems and fruits. Diseased leaves with water-stained spots, dry and blue-white, and easily broken, or the leaves drooping; disease stems with dark green water stains at the base of the lesions, late lesions contracture, so that the upper stems and leaves withered; sick melons have dip Collapsing depression spots, easy to grow white rot, and rancid odor.
Prevention:
1. Rational rotation, timely prevention and control of the occurrence of epidemic diseases, spraying 50% carbendazim WP on the soil, disinfecting the seed before sowing, and using 72.2% Proplex 800 times liquid plus a new high The lipid film was soaked for 800 hours and germinated after half an hour.
2. Strengthen field management, improve plant resistance to diseases, apply reasonable fertilization (especially nitrogen fertilizer), improve light transmission intensity, drain trenches in time, reduce field temperature, and spray grass roots at the appropriate time to promote shoot growth in the growing season. To promote flower bud differentiation; spray bud gutting at flower bud stage, young fruit stage and fruit expansion stage to increase fruit pedicle, promote fruit development and improve cucumber quality.
3, chemical control, if found that the central disease should be promptly removed and brought out of the park burned, and immediately sprayed targeted agents for prevention and control, once every 7-10 days of drug treatment, continuous control 3-4 times, and with the new high fat spray Membrane enhances efficacy.
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