Occurrence regularity and control of Moritziella castaneivora Miyazaki

In Rizhao Moritziella castaneivora was first found in 2004.It has 10-13 generations a year and caused serious damage on Castanea crenata.It also attacked C.mollissima in C.crenata introduction cultural area,but the damage was slight.Imidacloprid 10% WP,acetamiprid 5% WP,abamectin 1.8% EC,pyridaben 15% EC and azocyclotin 25% WP were selected in the field control experiment against the pest.The result showed the control effect of Imidacloprid was the best and that of acetamiprid and abamectin was the next.The control effect of aphicide was better than that of acaricide.