Irradiation as a quarantine treatment for the solenopsis mealybug, Phenacoccus solenopsis

文献类型： 外文期刊

第一作者： Huang, Fang

作者： Huang, Fang;Li, Weidi;Bei, Yawei;Lin, Wencai;Lu, Yaobin;Li, Xiuqiong;Wang, Bingkui

作者机构：

关键词： Cotton mealybug;Irradiated effect;Radioactive exposure;Mortality;Reproduction

期刊名称：RADIATION PHYSICS AND CHEMISTRY （ 影响因子：2.858； 五年影响因子：2.411 ）

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年卷期：

页码：

收录情况： SCI

摘要： Phenacoccus solenopsis is an aggressively invasive species that targets agricultural and ornamental plants, thereby threatening the world cotton industry and other crops. P. solenopsis has been listed as a quarantine insect in Europe and China. The utilization of phytosanitary irradiation as a potential treatment for disinfesting agricultural commodities in trade has expanded rapidly in recent years. A reasonable dose of radiation to eliminate P. solenopsis needs to be determined, taking into account the side effects of radiation on agricultural products and the species-specific tolerance of the insect to radiation. We applied radiation ranging from 50 to 200 Gy to P. solenopsis to determine the optimal dose. Both the radiation dose and the developmental stage of the insect were independent variables. Higher doses of radiation or lesser mature insect stages provided more effective treatment. In nymphs, a radiation dose of 100 Gy caused extinction of the irradiated population by disrupting ovary development, while 150 Gy caused 100% mortality. In adults, all tested doses of irradiation did not affect longevity, but we were able to prevent reproduction with high (150 and 200 Gy) doses. In P. solenopsis, a 100 Gy dose of radiation could eliminate the irradiated population in two generations. The mortality curve showed a steep slope beyond 150 Gy; thus, if killing all of the insects in a shorter amount of time is necessary, 200 Gy may be a reasonable dose for the quarantine treatment of the solenopsis mealybug.

分类号： O43`O64

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