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Vegetable cultivation is a pillar industry of Hansi Town in Zhongmu County. At the moment, the occurrence of gray mold and whitefly in greenhouses is relatively heavy. Zhang Gaiqiang, an agronomist in the county's Agriculture Committee of the county's Horticulture Department, came to the field to solve problems for the vegetable farmers.
Zhang Gaiqiang told farmers that gray mold mainly damages leaves and fruits. After the leaves became infected, they began to spread from the tips of the leaves, and the lesions expanded inwards in a "V" shape. The edges gradually became yellow, and the leaves were dry, producing a gray moldy layer on the surface. Phosphorus and potassium fertilizers should be added appropriately to increase the disease resistance of plants. In the early stage of onset, 50% Succolone WP can be used for 2000-3000 times or 45% Tesco more than 3000-4000 times. Every 7-10 days, it can be sprayed for 3 times 4 times.
Zhang Gaiqiang said that whitefly is a common pest in facility cultivation. Adults and nymphs suck plant sap, and the damaged leaves turn green, yellow, wilting, and even the whole plant dies. In addition, it will also secrete large amounts of honeydew, contaminate the leaves and fruits, and cause the occurrence of coal pollution. Can be used 10% bufalin EC 1000 times or 10% lanthanum net wettable powder 4000 ~ 5000 times liquid spray control. Yellow plates can also be trapped to kill adults.
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