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What are the control methods for the 28-spotted ladybird beetle (Henosepilachna vigintioctopunctata)?
1. Morphological characteristics: The adult is yellowish-brown and hemispherical. The pronotum usually bears 6 black spots, and each wing cover has 14 nearly round black spots of two sizes, with the black spots not connected at the suture between the two wing covers. The egg is bullet-shaped, yellowish-white when first laid and later brown, with the eggs in an egg mass arranged rather densely. The newly hatched larva is pale yellow, later turning white, spindle-shaped, with many white branched spines on the body segments, and the bases of the branched spines have dark brown rings. The pupa is oval, yellowish-white, with black markings on the back, and the posterior end is wrapped in the cast skin of the last-instar larva. 2. Life habits and
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What are the prevention and control methods for duck infectious serositis?
Duck infectious serositis, also known as duck pasteurellosis (Riemerella anatipestifer infection), is a chronic or acute septicemic infectious disease affecting ducklings (and goslings). It is characterized by fibrinous pericarditis, perihepatitis, airsacculitis and arthritis. With the rapid development of the duck industry and the expansion of poultry product trade, the incidence of duck infectious serositis has been rising year by year, and it is prone to occur and difficult to treat, having become one of the important diseases restricting the rapid development of the duck industry. Controlling and eliminating this disease is of great significance for promoting the rapid development of the duck industry. Based on my own work prac-
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Anemarrhena Pest and Disease Control Methods and Key Technical Points
Pest and Disease Control Methods for Anemarrhena
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What are the control methods for pests and diseases of sweet wormwood?
Control methods for pests and diseases of sweet wormwood
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What are the common control methods for Schizonepeta diseases?
Common control methods for Schizonepeta diseases
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Detailed Explanation of the Control Methods for Diseases and Pests of Radix Adenophorae
Control Methods for Diseases and Pests of Radix Adenophorae
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What are the pest and disease control methods for licorice?
Pest and disease control methods for licorice
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What to Do About Tomato Fruit Cracking? Causes and Control Methods Explained
What to Do About Tomato Fruit Cracking
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What are the control methods for tea tussock moth in tea gardens?
The tea tussock moth, also known as the tea yellow tussock moth and the head-swaying worm, belongs to the family Lymantriidae of the order Lepidoptera. It is distributed in every tea-producing province nationwide and is an important pest in China's tea regions. It mainly damages tea leaves and can also damage oil tea, citrus and others. Young larvae bite and feed on old tea leaves, leaving a semi-transparent membrane, and later bite young shoots and mature leaves, leaving notches. The larvae feed in groups, often dozens to hundreds gathering on the underside of leaves to feed. When the outbreak is severe, tea leaves are eaten almost completely.
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Control Methods and Technical Key Points for the Tea Green Leafhopper (Empoasca flavescens)
The tea green leafhopper, also known as the small green leafhopper, is one of the most important insect pests of tea in Fujian Province. It mainly feeds by piercing and sucking the sap of tender tea shoots with adults and nymphs, and female adults lay eggs inside the stems of tender shoots, causing stunted growth of tea plants. The damaged buds and leaves curl and harden, and the leaf tips and margins become reddish-brown and scorched, affecting the yield and quality of tea. This pest has multiple generations per year in Fujian Province, with overlapping generations. In low-mountain tea areas, it has 12 to 13 generations per year, with peak damage periods in May to June and September to October; in high-mountain tea areas, it has 8
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