Panicle neck weight is difficult to treat after prevention of onset
The prevention and treatment of panicle neck mites has a great influence on rice yield, and it is important to prevent the use of drugs. Applicable drugs for preventing panicle cervix include tricyclazole, rice amide, pyraclostrobin, chunleimycin, and rice bran. Among these drugs, the therapeutic effect of pyraclostrobin is relatively good. If the panicle neck has occurred due to missed prevention and treatment, improper medication, etc., it can be controlled once with pyraclostrobin in the early stage of the earring . In some areas, the rice blast fungus has high resistance to rice blast, rice glutinous rice, and prochloraz. It is not advisable to use these drugs alone to control the panicle scorpion in these areas.
The rice break period is the most critical period for the treatment of panicle neck lice. The rice plants in the field can be used for drug breakage. The time of administration is delayed, and the control effect of panicle neck mites will decrease. If there is continuous rainy weather in the heading stage of rice, it is necessary to apply the medicine before the rain, or to grasp the application of the rain stop to prevent and control the disease. In combination with the prevention and control of rice false smut, it is also possible to prematurely apply the first time to 5-7 days before the rice breaks, but it is necessary to use tricyclazole, rice amide, pyraclostrobin and other systemic strong and long-lasting effect. For the prevention of panicle neck sputum, and the amount of foot medicine, 20 to 30 grams of tricyclic azole pure drug per mu, or about 20 grams of rice glutamine amide pure drug, or pyraclostrobin pure drug per acre About 6 grams. Depending on the weather, etc., use a single drug at the heading stage to consolidate the control effect. If the heading stage of rice has a high-humidity and rainy weather that is particularly suitable for the occurrence of panicle-necked ticks, the drug is added once during the rupture period.
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(Source: Jiangsu Agricultural Science and Technology News)
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