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Optimal Irradiation Strategy to Induce Male Sterility in Cotton Mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

文献类型： 外文期刊

作者： Dong, Wanying 1 ; Lei, Yang 1 ; Liu, Chaogang 3 ; Ullah, Farman 1 ; Huang, Jun 1 ; Zhou, Zhongshi 4 ; Lu, Yaobin 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Biotechnol Plant Protect MOA China & Zheji, Hangzhou 310021, Peoples R China

2.Zhejiang A&F Univ, Coll Adv Agr Sci, Hangzhou 311300, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Crops & Nucl Technol Utilizat, Hangzhou 310021, Peoples R China

4.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

5.Chinese Acad Agr Sci, Natl Nanfan Res Inst, Sanya 572019, Peoples R China

6.Xianghu Lab, Inst Biointeract, Hangzhou 311231, Peoples R China

关键词： Phenacoccus solenopsis Tinsley; sterile insect technique; gamma-ray; optimal dose; radiation biology; mating competitiveness

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 6 期

页码：

收录情况： SCI

摘要： Phenacoccus solenopsis Tinsley is a highly invasive pest threatening global cotton production and numerous cultivated crops. The sterile insect technique (SIT), based on gamma-ray irradiation, offers a sustainable and eco-friendly alternative to chemical controls for managing pests. This study aimed to determine the optimal developmental stage and radiation dose to induce sterility in P. solenopsis. Male pupae aged 5 days demonstrated the highest tolerance to irradiation among all tested age groups. These 5-day-old male pupae were irradiated with 20, 40, 60, and 100 Gy and mated with unirradiated females, and the effects on mating rate, oviposition stage, egg number, egg hatchability, male adult lifespan, and female sex ratio were assessed. Sterility was effectively induced by 60 Gy in males without compromising their mating competitiveness in the parental (F0) generation. Moreover, sterility traits were inherited by descendants, leading to a progressive decline in population size across the F1 and F2 generations. Therefore, a 60 Gy dose was identified as optimal for suppressing P. solenopsis in field settings. These findings establish a theoretical foundation for implementing SIT as a regional pest management strategy for P. solenopsis.

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