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李缘刺蜡蚧 (Stotziasp )是李树的重要害虫 ,在昆明地区 1年发生 1代 ,以 2龄若虫在枝条上越冬 .每头雌虫产卵量平均为 6 0 0粒 .若虫 2龄 ,1龄若虫在叶片上取食 ,2龄若虫在 1～ 2年生枝条上固定 ,直至进入成虫期 .成虫期和 1龄浪荡若虫期是进行防治的关键时期 .当虫口密度过大时 ,于 2月下旬至 3月中旬剪除雌虫集中的枝条 ,并于 4月下旬至 5月下旬 1龄浪荡若虫期使用 1∶30 0 0倍敌杀死水溶液进行化学防治是最有效的防治措施 .果园管理不善是李缘刺蜡蚧成灾的主要原因 ,提高果园管理水平 ,建立虫情监测制度 ,保护利用天敌 ,并配合必要的化学防治 ,是防治该害虫的可行措施
The stinkbug (Stotziasp) is an important pest of the plum tree, one generation occurs in Kunming area for one year, and the 2nd instar nymphs overwinter on the branches.The average fecundity per female is 6 0 0. The nymphs of 2nd instar , The first instar nymphs fed on the leaves and the 2nd instar nymphs were fixed on 1-2 year old branches until they reached the adult stage.The adult period and the 1st instar nymphs were the key period for prevention and treatment.When the insect population density was too high, The removal of concentrated females from late February to mid-March and the chemical control of 1:30 0 0 times the kill water solution in the first instar nycticidal nymphs from late April to late May are the most effective control measures. Mismanagement is the main reason for the damage of wax jacaranda in Li Li, increasing the management level of orchards, establishing insect monitoring system, protecting and using natural enemies and cooperating with necessary chemical control are feasible measures to control the pests