烟青虫人工大量饲养技术的研究

通过对烟青虫生长发育性状的观察,确定最佳饲料配方和分层多格式的饲养法。结果表明,在添加Vc、番茄酱并调整玉米粉和大豆粉比例为2∶1时,烟青虫的蛹重、每雌虫产卵量和羽化率都有显著提高;分层多个饲养法比单管饲养法蛹重明显提高,养虫效率提高3-5倍,养虫成本降低了4-6倍。本研究的结果为利用昆虫辐射不育技术防治烟青虫提供了技术支持。

MASS REARING OF THE ORIENTAL TOBACCO BUDWORM FOR STERILE INSECT TECHNIQUE PROGRAMS

The main purpose of the study is to find out a proper technique for mass rearing the oriental tobacco budworm,Helicoverpa assulta Guenee.The oriental tobacco budworms larvae were reared with different formulation diets and kept in traditional glass test tubes or in specially-designed cell-unit devices. When the diets including vitamin C and tomato source,and the ratio of corn and soybean powder was set as 1∶2,the pupae weight,moth weight,pupation,emergence,fecundity and hatchability were increased significantly.When reared in cell-units,there is no significant differece in insect compared with those in glass test tubes,but the production efficiency was much higher and the cost was lower than the latter.The results of this study provide a key technical support for the application of sterile insect technique in control of oriental tobacco budworm.