柑桔锈壁虱是柑桔生产上较难防治的害螨之一 ,以甜橙、芦柑 (柑 )和柚类受害最重。受害果实果面变成黑褐色或铁锈色 (俗称黑皮果 )。常规杀螨剂虽然速效性较好 ,但持效期较短 ,在锈壁虱大发生年常难以控制为害 ,严重影响果实外观和品质。为此 ,我们引进 80 %大生Ｍ 45可湿性 Citrus rust tick is one of the more difficult to control the pest mites in citrus production, with orange, citrus (ponkan) and pomelo hardest hit. The fruit of the fruit surface turns dark brown or rust color (commonly known as black fruit). Although the conventional acaricide is more effective, its retention period is shorter and it is often difficult to control the occurrence of rust ticks, which seriously affects the appearance and quality of the fruits. To this end, we introduce 80% of students M 45 wettability