Locusts have the habit of suddenness, overeating, and long-distance migration. They are important pests that threaten the safety of agricultural production and social stability. They have been moderately and heavily biased in our county for a long time. According to the county plant protection and phytosanitary station system monitoring, on May 18, the field began to see è—è», close to the calendar year, 2-3 days earlier than in the previous year, May 22, 25, Xiaban Chengtoudaogou, Xinjiazhuang, warehouse Investigations in sub-districts have indicated that there are 1-2 heads per square meter of rice seedlings and 3 heads per square meter, all being 1 year old. From June 1st to 5th, surveys were conducted on paddy fields, farmland, and grasslands on hillside sites in Xiabancheng, Jiashan, Dayingzi, Sanjia, and Wudaohe townships. Generally, 2-3 crops per square meter were found on the slopes of grasslands. High, reaching 5-7 heads per square meter, rice fields are mainly dominated by the Chinese maggots, with an average of 1.35 locusts per square meter, and near the aqueducts, roadsides, and weeds areas. The occurrence of crickets is heavy. There are 5-8 locusts per square meter. In some fields, rice seedlings were bitten into nicks, and farmland locusts such as corn and millet occurred lightly. Locusts have a long period of damage, up to 3-4 months. At present, most worms are 2-3 years old, which is the best period for prevention and control. Hope that the technical staff of the townships will organize early and do a good job of prevention and control of locusts. Control methods: 1, Mu 1% celangulin EC 10 ml, watered 50-70 kg uniform spray; 2, 4.5% beta cypermethrin EC 1500 times spray; 3,5% pyrethrin EC 1000-1500 times liquid spray.
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