THE RELEASE OF A SMALL PERCENTAGE OF STERILE BACTROCERA DORSALIS (DIPTERA : TEPHRITIDAE) MALES RELATIVE TO FERTILE MALES INDUCES THE COLLAPSE OF THE PROGENY POPULATION

文献类型： 外文期刊

第一作者： Peng, Qi

作者： Peng, Qi;Liang, Fujun;Zhu, Yanfei;Teng, Ziwen;Fan, Yinjun;Wan, Fanghao;Zhou, Hongxu;Peng, Qi;Liang, Fujun;Zhu, Yanfei;Teng, Ziwen;Fan, Yinjun;Wan, Fanghao;Zhou, Hongxu;Peng, Qi;Liang, Fujun;Zhu, Yanfei;Teng, Ziwen;Fan, Yinjun;Wan, Fanghao;Zhou, Hongxu;Lu, Yongyue;Du, Xin;Ren, Yonglin;Wan, Fanghao

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关键词： Bactrocera dorsalis; Sterile insect technique; Small percentage release; Population collapse; Age-stage two-sex life table

期刊名称：ENTOMOLOGICAL NEWS （ 影响因子：0.3； 五年影响因子：0.4 ）

ISSN： 0013-872X

年卷期： 2025 年 132 卷 1 期

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收录情况： SCI

摘要： The sterile insect technique (SIT) is an environmentally friendly and species-specific method widely used to control agriculturally important fruit flies (Diptera: Tephritide). Previous studies have focused on the effects of releasing a higher proportion of sterile males relative to fertile males on Bactrocera dorsalis populations. In this study, we focused on the impact of releasing a small percentage of sterile males relative to fertile males on B. dorsalis populations. The results showed that when the ratio of wild to sterile males was 1:3, the number of eggs produced within 12 days (5166 eggs) and hatching rate (66%) were significantly lower than those of the control group (6680 eggs and 85%). When the males were released at a ratio of 1:3 for the second time, the hatching and pre-adult survival rates of B. dorsalis progeny were 43% and 37%, respectively. There were also significant decreases in R-0 , r , lambda , and T compared with the control, and after 90 days the population size predicted using the TIMING-MSChart program was reduced by 63%. Overall, these findings indicate that the release of sterile males as a small proportion relative to fertile males resulted in the collapse of the B. dorsalis population. This study establishes a scientific foundation for the release of sterile males in the field and the environmentally friendly prevention and control of B. dorsalis infestations.

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