Prevention of eggplant Verticillium wilt
Eggplant "half madness," also known as eggplant verticillium wilt, also known as black heart disease. In the early stage of disease, the leaves and veins of the eggplant become yellow, and then the whole leaf or half leaf gradually becomes yellow. The main veins of the leaves grow in a curved direction, and they are obviously biased towards the side of the leaves, and the leaves are not uniform. After removing the diseased plants, the vascular bundles in the middle of the plants became discolored and gradually turned brown or black. The early diseased leaves showed wilting at high temperatures in sunny days, which could be recovered sooner or later or on rainy days. The late-stage diseased leaves gradually dried from yellow to brown, and the leaf margins rolled up. In severe cases, the leaves turned brown and fell off. Half of the madness (Verticillium dahliae) is one of the major diseases of eggplant at present, and it can cause serious damage when severe. Eggplant "half madness" is a fungal disease. The pathogens spread with wind, rain, irrigation water, agricultural operations, etc. The diseases of high temperature and high humidity are aggravated, and the growth temperature of pathogens is 20-25°C. In addition, premature eggplant colonization, transplanting roots with soil, root injury, cultivation of buried too deep, continuous cultivation for no more than 3 to 4 years, the use of unripe farmyard fertilizers, excessive use of nitrogen fertilizer can cause the disease. Control methods: First, the method of grafting seedlings is adopted for cultivation. The second is the rotation of non-solanum crops for more than 4 years. The third is to increase organic fertilizer, phosphorus and potassium fertilizer applied rationally. The fourth is a reasonable dense planting. Fifth, timely watering, improve plant resistance. Sixth, at the early stage of disease, we used carbendazim WP 500 times or Koto 800 times to irrigate the roots. Each irrigating solution was 500 ml, about 7 days, and it was irrigated 3 times. For diseased strains can also be taken to remove the way to avoid cross-contamination. And with nitrocarbazone spraying control. Product categories of Car Bumper Punching Machine, we are specialized manufacturers from China, Car Front Bumper Punching Machine, Car Rear Bumper Punching Machine suppliers/factory, wholesale high-quality machine of bumper punching R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation! Car Bumper Punching Machine,Car Front Bumper Punching Machine,Car Rear Bumper Punching Machine Wuxi DIZO Ultrasonic Technology Company , https://www.dizosonic.com