论文部分内容阅读
经用P~(32)每毫升25量μci的剂量标记松毛虫赤眼蜂,室内测定P~(32)放射性强度:50头成蜂为466～642cpm,20粒柞蚕卵为109—117cpm。P~(32)标记对成蜂寿命、繁殖力、性比均无不良影响。苹果园P~(32)标记放蜂表明:苹果小卷叶蛾的卵块寄生率达96％,即粒寄生率93.09％。在寄生卵块中有73.91％的卵块测出P~(32),平均每块的放射性强度为14.34cpm,说明是人工释放的效果。有26.09％的寄生卵块未测出P~(32)或很弱,此为自然赤眼蜂所寄生。
The Trichogramma dendrolimi was labeled with 25 μg / ml of P ~ (32), and the radioactivity of P ~ (32) was determined in laboratory. The results showed that 50 adult bees were 466 ~ 642 cpm and 20 eggs were 109-117 cpm. P ~ (32) markers had no adverse effect on adult life, fertility and sex ratio. Apple orchard P ~ (32) marked put bee shows: apple leaf roller moth eggs parasitic rate of 96%, that is, the granular parasitic rate of 93.09%. 73.91% of the eggs in the parasitic egg mass detected P ~ (32), the average radioactivity per piece was 14.34 cpm, indicating the effect of artificial release. 26.09% of the parasitic eggs were not detected P ~ (32) or weak, this is the natural Trichogramma parasitic.