Symptoms and Control Methods of Broccoli Virus Disease
Let's talk about the symptoms and control methods of broccoli virus disease, some small knowledge of flower cultivation. Next, the editor will provide you with detailed answers.
Symptoms and Control Methods of Broccoli Virus Disease
When broccoli virus disease occurs, round chlorotic spots appear on the leaves, followed by the entire leaf turning pale, then the leaves start to wrinkle, and eventually the whole plant begins to necrotize. Young leaves become mottled, and diseased plants become dwarfed and deformed. To control broccoli virus disease, first, choose disease-resistant varieties. Seeds can be treated with dry heat at 78℃ for 48 hours to remove the virus, and diseased plants should be removed promptly. Aphid control in the seedling stage is crucial.
Symptoms of Broccoli Virus Disease
1. Symptoms of broccoli seedling stage: Circular chlorotic spots appear on the leaves, followed by the entire leaf turning pale, then the leaves start to wrinkle, and finally the whole plant necrotizes.
2. Symptoms of broccoli mature plants: Young leaves become mottled, and the lower surface of old leaves may develop black necrotic spots, followed by the plant becoming dwarfed and deformed. Mildly affected plants may produce smaller flower heads, while severely affected plants may not form heads.
Damage Caused by Broccoli Virus Disease
Damage caused by broccoli virus disease: In the seedling stage, the entire leaf shows green spots of varying intensity; in mature plants, young leaves show uneven spots, and in seed plants, spots appear on the leaves and the veins show mild necrosis.
Causes of Broccoli Virus Disease
The causes of broccoli virus disease: First, in production, early sowing, a high number of aphids, and粗放 management, along with poor ventilation or dry soil, and plants lacking water and fertilizer are prone to the disease. Second, continuously high soil temperatures inhibit root growth and development, reducing the plant's resistance.
What Medication to Use for Broccoli Virus Disease
In the early stages of broccoli disease, apply 60 grams of 60% Moringa guanidine·copper(II) oxide tablets per mu, diluted with water to make a 1200-fold solution, and spray it on the plant's leaves. Then spray every 7 days, for a total of 3-4 times. Aphid control in the seedling stage is very important.
Special Medication for Treating Broccoli Virus Disease
In the early stages of broccoli virus disease, you can use a 3.95% wettable powder of virus buster diluted in 600 jin of water solution, or 20% wettable powder of virus A diluted 500 times, alternating sprays. Also, spray foliar fertilizers to enhance the plant's resistance.
Control Methods for Broccoli Virus Disease
To control broccoli virus disease, first, choose disease-resistant varieties. After seeds are treated with dry heat at 78℃ for 48 hours, the virus can be removed. Adjust the vegetable layout, and diseased plants should be removed promptly to eliminate the virus-carrying aphids on the source plants.
The above content about the symptoms and control methods of broccoli virus disease is hoped to be helpful to green plant enthusiasts!