红松是我国东部山区珍贵乡土树种之一,其种子具有很高的经济价值。近几年来红松球果害虫松梢螟危害十分严重,个别地区部分结实林分球果被害率达到40%左右,2006年以来东方红林业局球果被害率达到了70%以上,而且还在逐年加重,近几年几乎绝产,严重影响了种子产量和质量。经过连续4年对奇源林场65林班红松母树林观测,松梢螟危害成上升状态,每年6月中下旬为松梢螟幼虫危害盛期,受害球果7月末开始掉落,到9月采收期时几乎见不到红松树上还有果实,为了改变这种不良状况,我们对东方红林业局红松球果害虫松梢螟进行了详细调查及防治试验。 Korean pine is one of the rare native tree species in eastern mountainous areas in China, and its seeds have high economic value. In recent years, the coniferous pine cone borer is very serious. In some areas, the coniferous cone damage rate is about 40%. Since 2006, the coniferous tree damage rate of the Dongfang Forestry Bureau has reached more than 70% Increasing year by year, almost absolutely dead in recent years, seriously affecting the yield and quality of seeds. After 4 consecutive years of observation on the Qinyuan Forest Farm of Khon pine forests in Qilian Forest Farm, the damage of the pine needles to the ascending state was delayed. In mid-June of each year, the pine cone borers larvae were in jeopardy. The congested cones began to fall at the end of July, In the harvesting period, there is almost no fruit on the pine tree. To change this kind of bad situation, we conducted a detailed investigation and prevention and control test on the red pine cone borer of the Dongfanglin Forestry Bureau.