Jiang Shan, Sun Xiao-Ting, Ge Shi-Shuai, Yang Xian-Ming, Wu Kong-Ming
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Insects. 2023 Jan 29;14(2):137. doi: 10.3390/insects14020137.
, an invasive pest, has a huge impact on food production in Asia and Africa. The potential and advantages of sterile insect techniques for the permanent control of have been demonstrated, but the methods for their field application are still unavailable. For the purposes of this study, male pupae of were irradiated with an X-ray dose of 250 Gy to examine the effects of both the release ratio and the age of the irradiated males on the sterility of their offspring. The control effect of the irradiated male release ratio on was evaluated using field-cage experiments in a cornfield. The results showed that when the ratio of irradiated males to non-irradiated males reached 12:1, the egg-hatching rate of the offspring of decreased to less than 26%, and there was also no significant difference in mating competitiveness among the different ages. Field-cage testing showed that when irradiated males were released at ratios of 12:1-20:1 to normal males, the leaf protection effect for the corn reached 48-69% and the reduction in the insect population reached 58-83%. In this study, an appropriate release ratio is suggested, and the mating competitiveness of irradiated and non-irradiated males of is investigated, thus providing a theoretical basis for the use of sterile insect techniques to control .
[一种入侵害虫]对亚洲和非洲的粮食生产造成了巨大影响。不育昆虫技术对[该害虫]进行永久控制的潜力和优势已得到证明，但它们的田间应用方法仍然不可用。为了本研究的目的，[该害虫]的雄性蛹用250戈瑞的X射线剂量进行辐照，以研究辐照雄性的释放比例和年龄对其后代不育性的影响。在玉米田通过田间笼罩试验评估辐照雄性释放比例对[该害虫]的防治效果。结果表明，当辐照雄性与未辐照雄性的比例达到12:1时，[该害虫]后代的卵孵化率降至26%以下，并且不同年龄之间的交配竞争力也没有显著差异。田间笼罩试验表明，当以12:1 - 20:1的比例向正常雄性释放辐照雄性时,对玉米的叶片保护效果达到48 - 69%，害虫种群减少率达到58 - 83%。本研究提出了合适的释放比例，并研究了[该害虫]辐照雄性和未辐照雄性的交配竞争力，从而为利用不育昆虫技术防治[该害虫]提供了理论依据。
