Hostname: page-component-76d6cb85b7-kcxw8 Total loading time: 0 Render date: 2026-07-24T19:07:42.673Z Has data issue: false hasContentIssue false

Sterility of Cydia pomonella by X ray irradiation as an alternative to gamma radiation for the sterile insect technique

Published online by Cambridge University Press:  08 August 2022

Jing-Han Zhang
Affiliation:
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, Liaoning, China
Na Li
Affiliation:
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, Liaoning, China
Hui-Yuan Zhao
Affiliation:
Hebi Jiaduoke Industry and Trade Co., Ltd, Hebi 458030, Henan Province, China
Ya-Qi Wang
Affiliation:
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, Liaoning, China
Xue-Qing Yang*
Affiliation:
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, Liaoning, China
Kong-Ming Wu*
Affiliation:
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
*
Author for correspondence: Xue-Qing Yang, Kong-Ming Wu, Email: sling233@hotmail.com, wukongming@caas.cn
Author for correspondence: Xue-Qing Yang, Kong-Ming Wu, Email: sling233@hotmail.com, wukongming@caas.cn

Abstract

The codling moth Cydia pomonella is a major pest of global significance impacting pome fruits and walnuts. It threatens the apple industry in the Loess Plateau and Bohai Bay in China. Sterile insect technique (SIT) could overcome the limitations set by environmentally compatible area-wide integrated pest management (AW-IPM) approaches such as mating disruption and attract-kill that are difficult to suppress in a high-density pest population, as well as the development of insecticide resistance. In this study, we investigated the effects of X-ray irradiation (183, 366, 549 Gy) on the fecundity and fertility of a laboratory strain of C. pomonella, using a newly developed irradiator, to evaluate the possibility of X-rays as a replacement for Cobalt60 (60Co-γ) and the expanded future role of this approach in codling moth control. Results show that the 8th-day is the optimal age for irradiation of male pupae. The fecundity decreased significantly as the dosage of radiation increased. The mating ratio and mating number were not influenced. However, treated females were sub-sterile at a radiation dose of 183 Gy (20.93%), and were almost 100% sterile at a radiation dose of 366 Gy or higher. Although exposure to a radiation dose of 366 Gy resulted in a significant reduction in the mating competitiveness of male moths, our radiation biology results suggest that this new generation of X-ray irradiator has potential applications in SIT programs for future codling moth control.

Information

Type
Research Paper
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable