How to prevent and treat rot disease in bowl lotus? A full guide to practical methods
Bowl lotus is the lotus now grown in bowls, placed specifically on indoor tea tables to beautify the home environment. Because the flowers of bowl lotus are only five cm in diameter, their dainty and delicate appearance is very popular. But bowl lotus is also very prone to rot disease, so how exactly should rot disease in bowl lotus be prevented and treated?
Bowl lotus
I. Symptoms:The disease occurs on the whole plant, starting from the seed root and spreading to the underground stem, leaf stalk, leaf blade and flower stalk and other parts. The underground stem initially appears to have no symptoms, but some of the vascular vessels in its cross-section turn light brown or brown and gradually spread. Some diseased stems show no obvious discoloration, but the entire stem or one side of it develops longitudinal wrinkles, and the leaves produced by the diseased stem are light green, later beginning to dry from the leaf margins, causing the leaves to curl and even die.
II. Transmission routes and conditions for disease occurrence:The fungus overwinters as mycelium inside the seed lotus rhizome and as chlamydospores in the soil. Infected seed lotus rhizomes and diseased soil become the main sources of primary infection. When infected seed lotus rhizomes are planted, the seedlings that grow become the center of the disease; first the underground stems and root system develop lesions, then the leaf stalks and leaf blades are affected. The diseased center plants produce spores that invade through wounds, causing secondary infection. Resistance differs among varieties; deep-rooted varieties are less affected than shallow-rooted varieties. Continuous rain, insufficient sunlight or frequent storms easily trigger this disease; poor soil permeability or high acidity in the lotus field, sewage entering the field or water temperature higher than 35°C all easily trigger this disease.
III. Prevention and treatment methods:① Select disease-resistant varieties according to local conditions. ② Severely diseased fields should practice 2-3 year crop rotation. ③ Carefully select disease-free seed lotus rhizomes, and use 50% carbendazim or thiophanate-methyl wettable powder 800-fold solution plus 75% chlorothalonil wettable powder 800-fold solution; after spraying, seal the seeds, cover with plastic film and seal for 24h, then dry and plant. ④ Deeply plow and harrow the lotus field, and apply lime at 1500-2250kg per hectare. ⑤ Strengthen fertilizer and water management, apply sufficient decomposed organic fertilizer, and top-dress timely and appropriately, combining organic fertilizer with chemical fertilizer and nitrogen fertilizer with phosphorus and potassium fertilizer; manage the water layer according to the needs of lotus at different growth stages, keeping the depth appropriate, using water to regulate temperature and fertilizer, and preventing aggravated disease from excessively high water temperature or long-term deep flooding. ⑥ After promptly pulling out diseased plants, spray 50% carbendazim wettable powder 600-fold solution plus 75% chlorothalonil wettable powder 600-fold solution; the above mixed fungicide can also be used at 7.5kg per hectare mixed with 375-450kg fine soil, piled and sealed for 3-4h, then scattered into the shallow water layer, and after 2-3d use the above mixed agent 600-fold solution or 40% duosulfur suspension concentrate 400-fold solution or 50% procymidone wettable powder 1000-fold solution sprayed on the above-ground leaf stalks.
Symptoms of bowl lotus rot disease, prevention and treatment methods of bowl lotus rot disease
Resistance to bowl lotus rot disease differs among varieties; deep-rooted varieties are less affected than shallow-rooted varieties. Continuous rain, insufficient sunlight or frequent storms easily trigger this disease; poor soil permeability or high acidity in the lotus field, sewage entering the field or water temperature higher than 35°C all easily trigger this disease. Today I will introduce the symptoms of bowl lotus rot disease and the prevention and treatment methods of bowl lotus rot disease.
Symptoms of bowl lotus rot disease:
Symptoms of bowl lotus rot disease: The disease occurs on the whole plant, starting from the seed root and spreading to the underground stem, leaf stalk, leaf blade and flower stalk and other parts. The underground stem initially appears to have no symptoms, but some of the vascular vessels in its cross-section turn light brown or brown and gradually spread. Some diseased stems show no obvious discoloration, but the entire stem or one side of it develops longitudinal wrinkles, and the leaves produced by the diseased stem are light green, later beginning to dry from the leaf margins, causing the leaves to curl and even die.
Prevention and treatment methods of bowl lotus rot disease:
① Select disease-resistant varieties according to local conditions.
② Severely diseased fields should practice 2-3 year crop rotation.
③ Carefully select disease-free seed lotus rhizomes, and use 50% carbendazim or thiophanate-methyl wettable powder 800-fold solution plus 75% chlorothalonil wettable powder 800-fold solution; after spraying, seal the seeds, cover with plastic film and seal for 24h, then dry and plant.
④ Deeply plow and harrow the lotus field, and apply lime at 1500-2250kg per hectare.
⑤ Strengthen fertilizer and water management, apply sufficient decomposed organic fertilizer, and top-dress timely and appropriately, combining organic fertilizer with chemical fertilizer and nitrogen fertilizer with phosphorus and potassium fertilizer; manage the water layer according to the needs of lotus at different growth stages, keeping the depth appropriate, using water to regulate temperature and fertilizer, and preventing aggravated disease from excessively high water temperature or long-term deep flooding.
⑥ After promptly pulling out diseased plants, spray 50% carbendazim wettable powder 600-fold solution plus 75% chlorothalonil wettable powder 600-fold solution; the above mixed fungicide can also be used at 7.5kg per hectare mixed with 375-450kg fine soil, piled and sealed for 3-4h, then scattered into the shallow water layer, and after 2-3d use the above mixed agent 600-fold solution or 40% duosulfur suspension concentrate 400-fold solution or 50% procymidone wettable powder 1000-fold solution sprayed on the above-ground leaf stalks.
The symptoms of bowl lotus rot disease and the prevention and treatment methods of bowl lotus rot disease are introduced here; I believe everyone has gained some understanding after reading.
How to prevent and treat bowl lotus rot disease
Bowl lotus, also known as furong, likes sufficient sunlight and cannot tolerate shade. During the growth of bowl lotus, rot disease is a common disease. Today the editor will share with everyone the symptoms and prevention and treatment methods of bowl lotus rot disease.
Symptoms of bowl lotus rot disease:
The disease occurs on the whole plant, starting from the seed root and spreading to the underground stem, leaf stalk, leaf blade and flower stalk and other parts. The underground stem initially appears to have no symptoms, but some of the vascular vessels in its cross-section turn light brown or brown and gradually spread. Some diseased stems show no obvious discoloration, but the entire stem or one side of it develops longitudinal wrinkles, and the leaves produced by the diseased stem are light green, later beginning to dry from the leaf margins, causing the leaves to curl and even die.
Transmission routes and conditions for disease occurrence of bowl lotus rot disease:
The fungus overwinters as mycelium inside the seed lotus rhizome and as chlamydospores in the soil. Infected seed lotus rhizomes and diseased soil become the main sources of primary infection. When infected seed lotus rhizomes are planted, the seedlings that grow become the center of the disease; first the underground stems and root system develop lesions, then the leaf stalks and leaf blades are affected. The diseased center plants produce spores that invade through wounds, causing secondary infection. Resistance differs among varieties; deep-rooted varieties are less affected than shallow-rooted varieties. Continuous rain, insufficient sunlight or frequent storms easily trigger this disease; poor soil permeability or high acidity in the lotus field, sewage entering the field or water temperature higher than 35°C all easily trigger this disease.
Prevention and treatment methods of bowl lotus rot disease:
① Select disease-resistant varieties according to local conditions.
② Severely diseased fields should practice 2-3 year crop rotation.
③ Carefully select disease-free seed lotus rhizomes, and use 50% carbendazim or thiophanate-methyl wettable powder 800-fold solution plus 75% chlorothalonil wettable powder 800-fold solution; after spraying, seal the seeds, cover with plastic film and seal for 24h, then dry and plant.
④ Deeply plow and harrow the lotus field, and apply lime at 1500-2250kg per hectare.
⑤ Strengthen fertilizer and water management, apply sufficient decomposed organic fertilizer, and top-dress timely and appropriately, combining organic fertilizer with chemical fertilizer and nitrogen fertilizer with phosphorus and potassium fertilizer; manage the water layer according to the needs of lotus at different growth stages, keeping the depth appropriate, using water to regulate temperature and fertilizer, and preventing aggravated disease from excessively high water temperature or long-term deep flooding.
⑥ After promptly pulling out diseased plants, spray 50% carbendazim wettable powder 600-fold solution plus 75% chlorothalonil wettable powder 600-fold solution; the above mixed fungicide can also be used at 7.5kg per hectare mixed with 375-450kg fine soil, piled and sealed for 3-4h, then scattered into the shallow water layer, and after 2-3d use the above mixed agent 600-fold solution or 40% duosulfur suspension concentrate 400-fold solution or 50% procymidone wettable powder 1000-fold solution sprayed on the above-ground leaf stalks.
The above is the article on the symptoms and prevention and treatment methods of bowl lotus rot disease.