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使用9MeV高能X射线对松墨天牛的老熟幼虫、蛹和成虫辐照处理的结果表明,辐照能明显影响其生长发育及繁殖能力。导致幼虫发育迟缓,幼虫期延长。对于老熟幼虫,100%阻止化蛹和出现成虫的剂量为50Gy,经机率值分析,死亡率达到99.9968%的检疫辐照剂量为61.4Gy(55.5～72.6);对于9日龄以下蛹,100%阻止繁殖F1代幼虫的不育剂量为120Gy。辐照也导致雌虫和雄虫的存活时间缩短,100%阻止11日龄以下雌虫和雄虫的不育剂量为140Gy。由此说明,辐照耐受性随发育的完善而增强。建议使用60～80Gy作为松墨天牛幼虫的检疫辐照剂量,140Gy作为蛹和初期成虫的检疫辐照剂量,用于原木和木质包装的检疫处理。
Irradiation of mature larvae, pupae and adults of Monochamus alternatus using 9 MeV high energy X-ray showed that irradiation can significantly affect its growth and reproduction ability. Lead to larval growth retardation, larval period is prolonged. For mature larvae, the dose of 100Gy to prevent pupae and adult adults was 50Gy. According to the probability analysis, the quarantine irradiation dose with the mortality rate of 99.9968% was 61.4Gy (55.5 ~ 72.6); for pupae less than 9 days old, 100 The% of sterility that prevented the breeding of F1 generation larvae was 120 Gy. Irradiation also resulted in shortened survival time for both females and males, and 100% prevented infertility doses of 140 Gy for females and males below 11 days of age. This shows that the radiation tolerance with the development of improved and enhanced. It is recommended to use 60 ~ 80Gy as the quarantine radiation dose of Monochamus alternatus larvae and 140Gy as the quarantine radiation dose of pupae and early adults for the quarantine treatment of logs and wood packaging.