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What are the control methods for the small green leafhopper in organic tea gardens?
Control methods for the small green leafhopper in organic tea gardens
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Symptoms and Control Methods of Watermelon Green Mottle Mosaic Virus
Watermelon Green Mottle Mosaic Virus
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How to prevent and control pineapple heart rot? Introduction to practical methods
This disease mainly affects seedlings, but can also affect mature plants. In affected plants, the leaves are still greenish at first, only slightly darker and duller in color, while the central leaves are yellowish-white. Afterward, the leaf color gradually turns yellow or reddish-yellow, the leaf tips dry up, and a water-soaked rotting area develops at the leaf base. The most important characteristic of this disease is that the central leaves can be pulled out easily....
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What are the control methods for pineapple fruitlet brown rot?
Pineapple fruitlet brown rot, also known as black heart disease, is a disease that occurs commonly in pineapple-growing regions worldwide, and is more prevalent in Cayenne-type pineapples. The disease mainly affects ripe fruit. Symptoms: the appearance of affected fruit is no different from healthy fruit, but symptoms can be seen when cut open. Infected fruitlets turn brown or form black...
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What to Do About Phosphorus Deficiency in Sugarcane? Symptom Identification and Control Methods
In the mid-to-late growth stages of sugarcane in Jinggu County, it is prone to damage by sugarcane woolly aphids. If control is not timely, it can cause severe yield reduction in sugarcane. Sugarcane woolly aphids gather on the back of leaves along both sides of the midrib, sucking sap, causing sugarcane leaves to wither and yellow, and excrete honeydew on the leaves, inducing sooty mold, affecting normal leaf photosynthesis...
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What are the common diseases of lettuce? Detailed explanation of control methods
When lettuce is grown in greenhouses in winter, it is prone to a variety of diseases. Several common diseases of lettuce and their control measures are summarized as follows: Sclerotinia rot mainly affects the base of the stem. In the early stage of the disease, the affected part is yellow-brown to brown and water-soaked, then spreads to the entire stem, causing the stem to rot or spreading upward to cause leaf rot, and finally the plant withers...
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What are the common pests and diseases of roses? A detailed guide to prevention and control methods
Roses originated in China and were introduced abroad as early as 200 years ago. Through long-term crossbreeding and selection by European and American horticulturists, modern roses have developed to more than 20,000 varieties. Roses are cold-resistant and highly adaptable, suitable for both ground planting and container growing, so they are widely cultivated around the world...
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How to prevent and control mung bean leaf spot disease? Detailed explanation of control methods
1. Choose disease-resistant varieties, plant at a reasonable density, and ensure good ventilation in the field. 2. Strengthen field management, and pay attention to draining or dispersing soil moisture after heavy rain. 3. At the early stage of the disease, choose 70% mancozeb 500x solution, or 41% Texiao Shajunwang 2000x solution, or 20% Landi 500x solution for spray control. Spray once every 7 to 10 days, spraying continuously...
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Control Methods and Technical Key Points for Papaya Brown Rot
Generally planted in rows in the ground, but can also be grown as potted specimen plants. The best planting time is before bud break in early spring or after leaf fall in early winter. When lifting seedlings from the nursery, keeping the root system intact is one of the keys to successful planting. Generally, large seedlings for planting should be kept with a soil ball, while small seedlings should retain some native soil depending on the situation. After planting, the seedlings should be...
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Wheat Pest and Disease Control Methods and Key Technical Points
Spider Mites in Wheat [Distribution and Damage] There are mainly two species of spider mites in wheat, the winter grain mite [Penthaleus major (Duges)] and the brown wheat mite [Petrobia latens (Muller)]. The former belongs to the family Penthaleidae, order Acariformes, class Arachnida; the latter belongs to the family Tetranychidae. Both are distributed in wheat-growing regions across the country. In the north, the brown wheat mite predominates, while in the south...
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