Greenhouse Eggplant Verticillium Wilt and Whitefly Control Methods

Symptoms of Verticillium wilt on eggplant: Verticillium wilt usually starts after the fruit is set in the pod. The disease begins with the lower leaves of the plant. At the beginning, the veins in the upper leaves become yellow and gradually spread to the entire leaf. Afterwards, the morbidity is browned, the edges die or the whole leaves die. The wilting plants started to cut their roots and stems, and the vascular bundles in the xylem became brown.

Control methods:

(1) In the rotation of vegetables, decompose organic fertilizer and phosphorus and potassium fertilizers, and cover the film in the greenhouse to increase the temperature of the soil and promote root development.

(2) Clean gardens. The diseased plants were immediately removed, brought out of the shed, and destroyed.

(3) Soil disinfection. Use 50% carbendazim WP 5 kg per acre to sprinkle on the ground, then plow the soil, or spread it into the hole to concentrate the application. Onset of growth should be selected irrigation root method, can be used 50% carbendazim 500 times, 50% of the 500 times the root care to irrigate, 0.25 kg of liquid per strain, every 10 days irrigation, continuous irrigation 2-3 times.

(4) Grafting for roots. The use of wild eggplant as the rootstock to raise the seedlings can not only prevent eggplant verticillium wilt disease, but also improve the plant's ability to withstand low temperatures.

Symptoms of Eggplant Bacterial Mushrooms: Whiteflies in the greenhouse can occur more than 10 generations a year, overlapping each other for generations. Whitefly adult nymphs are characterized by tenderness. Clusters suck the mesophyll juice behind the upper leaves, causing poor plant growth and chlorosis and yellowing.

(1) Smoke fumigation. 22% of Tianfeiling aerosol was used to ignite fumigation to remove remaining insect populations, eliminate crops and weeds, control alien pests, and reasonably rotate vegetables in greenhouses.

(2) Chemical control. Can be used 25% fluconazole 2500 times WP or 2.5% of deltamethrin EC 2000 ~ 3000 times, or 40% chrysanthemum EC 2500 times and other control.

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