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Control Methods for Powdery Mildew in Goji Berry Cultivation
[Symptom Characteristics] Mainly affects leaves. The leaf surface becomes covered with white mold patches (early stage) and powdery spots (later stage). These white mold patches and powdery spots are both the symptoms of this disease and the signs of this disease (the fungus's conidiophores and conidia). In severe cases, the goji berry plant appears entirely white,
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What are the control methods for loquat trunk rot disease?
In recent years, loquat trunk rot disease has occurred especially severely in some places, posing a serious threat to loquat production. According to surveys, the varieties Luoyangqing and Dahongpao are the most susceptible to the disease. In the early stage of the disease, the base of the main trunk rots first, and then it gradually develops upward along the branches and trunk,
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Prevention and Control Methods for Pepper Flower and Fruit Drop in Spring
Because spring temperatures vary greatly and remain unstable, peppers at the flowering and fruit-setting stage are easily affected by environmental conditions, leading to flower and fruit drop. There are many causes of pepper flower and fruit drop, including physiological ones and pathological ones. Peppers prefer air
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What are the methods for controlling pepper seed diseases
According to experts, pepper seeds generally carry the following latent diseases: damping-off seedlings, Rhizoctonia rot, bacterial leaf spot of pepper, pepper viral disease, pepper Phytophthora blight, pepper Verticillium wilt, etc. 1. Hot water seed soaking Soak the seeds in hot water at 60°C, with a water volume 3
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What are the control methods for pepper seedling leaf curl disease?
When peppers are grown as seedlings in winter and spring, after transplanting (dividing seedlings) leaf curl, arrested growth and even death often occur. I. Causes and symptoms (1) Physiological disease: long-term low temperature and high humidity in the seedbed cause poor plant development, yellowing of stems and leaves, curling and shrinking of the terminal leaves, and stunted growth; in severe cases the roots are waterlogged and rot, the roots turn rusty in color and then decay.
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What are the multiple control methods for sweet potato black spot disease
Sweet potato black spot disease, also known as sweet potato black scar disease, has become one of the most widespread and serious diseases in sweet potato producing areas of China. According to statistics, the annual yield loss caused by this disease in China is 5%-10%, and livestock eating diseased tubers can also cause poisoning, with severe cases leading to death. I. Symptoms
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What are the control methods for sweet potato soft rot?
1. Harvest at the right time and avoid mechanical injury. Summer sweet potatoes should be harvested completely around the time of Frost's Descent, and autumn sweet potatoes should be harvested completely before the Start of Winter. Choose a sunny day for harvesting, and when digging the potatoes, minimize or avoid causing wounds. 2. Select healthy potatoes carefully to ensure safe storage in the cellar. Before the sweet potatoes are put into the cellar, they must be carefully selected,
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What are the control methods for sweet potato weevil
The sweet potato weevil is also called the sweet potato ant-weevil; in Guangdong it is called shazi bug or shala bug, and it is one of the main pests harming sweet potatoes. In autumn sweet potatoes cultivated on dry sloping land, it occurs rather severely in the middle and late stages, with a general damage rate of 10%-15%, and in severely affected plots up to 40%-50%. Control methods
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What are the control methods for sweet potato stem nematode disease?
Sweet potato stem nematode disease, commonly known as "chaff heart disease." [Pathogen nematode scientific name] Ditylenchus destrutor Thorne. [Host crops] Sweet potato, potato, lily, ginseng, mint, Angelica sinensis, etc. [Disease diagnosis] It mainly damages the tuberous roots, followed by the stems and vines. Tuberous roots affected
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Control Methods for Sweet Potato Wrinkle Mosaic Disease
Sweet potato wrinkle mosaic disease, also known as sweet potato latent virus disease. [Virus English name] Sweet potato latent virus, abbreviated SPLV. [Host crops] Sweet potato, Convolvulaceae, Chenopodiaceae, and some Solanaceae crops. [Disease diagnosis] During the seedling-raising period, diseased seed potatoes sprout in greater numbers than healthy potatoes
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