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Identification and Control Methods for Common Pests and Diseases of Serissa
(1) Damping-off: This disease is caused by infection by the fungi Pythium aphanidermatum and Pythium ultimum, and is a seedling-stage disease that seriously threatens the growth of Serissa. On affected seedlings, water-soaked lesions first appear at the base of the stem, then turn brown and become sunken and shrunken; afterward the diseased area rapidly girdles the stem, causing the seedling to collapse. Finally the diseased seedlings rot and dry up.
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How to prevent and control leaf spot disease in geraniums? A detailed guide to practical methods
[Symptoms] In the early stage of the disease, chlorotic spots appear on infected leaves, and the spots gradually expand afterward, forming relatively large round lesions. The lesions are dark brown with concentric rings. In the late stage of the disease, a dark green mold layer appears on the lesions, which consists of the conidia of the pathogen
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What are the common pest and disease control methods for Panax notoginseng
Common pest and disease control methods for Panax notoginseng
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What to do about leaf curl disease in plum blossoms? Causes and control methods
Causes and control methods of leaf curl disease in plum blossoms. So-called leaf curl disease refers to plum blossoms under water-deficient conditions, where both sides of the leaf fold inward toward the center of the upper surface and curl, showing a listless, wilted state; it is a physiological disease. Leaf curl disease not only affects the beauty of the plum tree, but in severe cases can cause leaf drop.
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A Complete Guide to Pest and Disease Control Methods and Techniques for Mock Lime (Aglaia odorata)
Pest and disease control for mock lime. During the growing period, mock lime suffers from the following diseases: stem rot and anthracnose; and the following pests: the white wax cicada (Lawana imitata), aphids, red spider mites, brown soft scale, and other pests. Mock lime stem rot occurs on the stems of the plant. In the early stage of the disease, small black spots appear, which after expanding become streak-shaped, dark brown
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What are the control methods for water lily leaf rot?
[Symptoms]It commonly affects the emergent leaves. In the early stage of the disease, chlorotic spots appear on the leaf surface of water lilies, the surrounding tissue necroses, and later expands into irregular lesions, light brown to dark brown. On floating leaves, dark to dark gray large spots with indistinct concentric rings appear, scattered with small black dots, causing the leaf margins to die back. In the late stage of the disease
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Causes of Shriveled Soybean Seeds and Control Methods
Causes of Shriveled Soybean Seeds and Control Methods
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What to Do About Soybean Nutrient Deficiency? A Detailed Guide to Symptom Identification and Control Methods
Soybean Nutrient Deficiency Symptoms and Control Methods
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How to control broad bean pests and diseases? Control methods for aphids and chocolate spot
Control methods for broad bean pests and diseases
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How to control pests on succulents? Introduction to practical methods
Methods for controlling pests on succulents
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