辐照亚洲玉米螟F-1雄虫在田间的扩散能力和对性诱剂的反应能力

FIELD DISPERSAL ABILITY AND TAXIS TO SEX PHEROMONE OF IRRADIATED F 1 MALE ASIAN CORN BORER

用亚洲玉米螟性诱剂田间诱捕释放的１００Ｇｙ、１５０Ｇｙ和２００Ｇｙ辐照的Ｆ１雄虫和正常雄虫。试验表明，部分辐照的Ｆ１雄虫丧失了飞翔扩散能力或对性诱剂的反应能力，但在距释放点５５０ｍ处诱捕到的Ｆ１雄蛾数与诱捕总数之比与正常雄蛾无显著差异。

The dispersal ability of F 1 male Asian corn borer, Ostrinia furnacalis (Guenee), irradiated with 100, 150 and 200 Gy separately in parental generation were tested by marking(with calco oil red or Sudan blue internally) releasing recapturing (with synthesized sex pheromone) method in the field where the farthest distance from release point to pheromone trap was 550 m. The results showed that, as compared with the normal male moths, despite of the fact that a part of the irradiated F 1 males had lost dispersal ability or taxis to sex pheromone, there was no significant difference between the captured rates of irradiated F 1 males and normal males in the trap 550 m from release point, indicated that the dispersal ability or taxis to sex pheromone of irradiated F 1 males arrived at 550 m from release point are still well matched with the normal ones.