"Rice Water Weevil" is a quarantine pest that has the characteristics of rapid propagation, strong migration and nocturnal release. According to field investigations at the county plant protection and phytosanitary station, on May 24th, rice seedlings were found to be harmless at the rice seedbeds in the headwalls of Chengtoudaogou, Xinjiazhuang and Cangzi. On June 11-16, they were found at the head of Chengtoudaogou, Xiaban. Large-scale surveys have been conducted in Xinjiazhuang, Cangzi, Gaotaitai, and Sanjia and other places. Rice and waterweeds occur moderately. Some villages and townships such as Sanjia and Gaositai are overemphasized. The rate of pests is 75%, and there are paddy rice per square meter in general plots. For example, 0.5-1 foratropha elegans, 1-3% for damaged leaves, 15-30 for adults per square meter in severe plots (Gaositai and Sanjiao), 9 adults for the highest single plexus, and 80% of culms per plant. Above, the insect leaf rate is 35-75%. At present, the rice water weevil is an adult stage, concentratively harming the leaves, and it is the best time for prevention and control. The towns and villages should be prevented and treated in a timely manner. Prevention measures: 1, mu with 5% A-dimensional saline dispersant 4000-6000 times liquid spray. 2, 4.5% beta cypermethrin EC 1500 times spray. 3. Use 25% Aketai 2-4 grams per mu and spray 50 kg water to rice seedlings. This medicine can prevent and treat common pests in rice fields such as leafminers, rice planthoppers, rice stem borers, rice leaf roller borers, negative mud insects, and rice borers while controlling rice water weevil.
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