用速扑杀防治矢尖蚧效果好矢尖蚧又叫箭头介壳虫，矢根介壳虫，箭形纵脊介壳虫，近几年来，我县大部份柑桔产区均有大量发生，还为害柚、黄皮、茶树、白蜡树、番石榴等的叶片、枝条以及果实。寄生处的四周变黄绿色，严重时叶片卷缩、干枯，树势很快衰弱，产量逐年下降，甚... Quick culling to control the effect of Agrimony Scale Vector Agriacea also known as arrow scale insects, arrowroot scale insects, arrow-shaped vertical ridge scale insects, in recent years, most of my county citrus producing areas have occurred in large numbers, but also harm Pomelo, yellow, tea, ash tree, guava and other leaves, branches and fruits. Parasites around the yellow-green, when severe leaves curling, dry, tree weakness soon, production decline year by year, and even ...