柿绵蚧为害造成枝条干枯,果实提前软化,严重影响了柿产区的经济效益。柿绵蚧以若虫为害枝条和果实。以初龄若虫在枝条皮缝中越冬,发芽时开始活动,开始为害嫩芽和新梢,以后在柿蒂和果实上固定为害。柿绵蚧一年发生4代,若虫出现盛期分别在:6月上中旬、7月中旬、8月中旬和9月中下旬。由于柿绵蚧成虫有蜡质分泌物,卵藏于卵囊内,喷药防治效 Persimmon mealybugs damage caused by the branches dry, softening the fruit in advance, seriously affecting the economic benefits of persimmon area. Persimmon mexico damage to nymphs branches and fruits. The first instar nymphs in the branches of the skin cracks in the winter, began to germinate activities began to harm shoots and shoots, and later on the persimmon and fruit fixed damage. Persimmon mealybug occurs four generations a year, nymphs appear in the peak: mid-June, mid-July, mid-August and late September. Because of persimmon cotton insect adult waxy secretions, eggs hidden in the oocysts, spraying control effect