融水苗族自治县位于广西北部,是我国南方的重点林业县之一,盛产杉木、毛竹及各种阔叶树。由于造林灭荒时所选择的造林树种单一,近几年来林业有害生物发生较多,极大地影响了林木的生长和群众的收入。该县林业有害 Rongshui Miao Autonomous County is located in northern Guangxi, is one of the key forestry counties in southern China, rich fir, bamboo and various broad-leaved trees. Due to the single afforestation species selected during afforestation and abolition, forestry pests have occurred more in recent years, which greatly affected the growth of trees and the income of the masses. The county forestry is harmful