Citrus orange sharp tip, also known as Citrus orange shield. Three generations generally occur in our city, and the first generation occurs more severely. The nymphs and female adults mainly suck the branches, stems, leaves, and fruit juices. The severe leaves dry up and shrink, causing the tree vigor to weaken and even die. According to observations made by me standing at Xianlong and Chen Shizhen orchards, the first generation hatching of Citrus aurantium seedlings was first seen on April 11th. Combined with the current weather conditions, it is expected that this year's citrus tipping ratio will be higher than this year. Last year 4-5 days earlier, the degree of occurrence was more serious. The township and the office's Agricultural Technology Center were asked to intensify the investigation, to effectively carry out the technical guidance for prevention and control, to immediately organize fruit farmers, and to prevent and control the first generation of citrus sharp. 1. Prevention and treatment time: Southern townships are from April 28 to May 3; northern townships are from May 1-6. 2. Control methods and pharmacy 1. Strengthen comprehensive management, cut off serious sticks of locusts, bring them out of the orchard and burn them. 2, 50% speed cull EC 2000 times. 3, 80% dichlorvos EC 800 times. 4, pine grease mixture 18-20 times in summer and autumn, 8-10 times in winter. (Rose mixture ratio = caustic soda 2: Rosin 3: Water 10)
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