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News September 21, 2023

Three new irradiation treatments submitted to the IPPC

Three new phytosanitary irradiation treatments have been submitted by China to the International Plant Protection Convention (IPPC) in September 2023.

The treatments concern three mealybugs:

1 – The aerial root mealybug, Pseudococcus baliteus Lit (Hemiptera: Pseudococcidae), an important invasive and quarantine pest;

2- The cacao mealybug, Planococcus lilacinus Cock (Hemiptera: Pseudococcidae), a destructive mealybug and a serious quarantine pest;

3 – The papaya Mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae), a highly polyphagous invasive pest that poses a quarantine threat to tropical and subtropical countries.


Part of the research that led to these treatments was carried out within the framework of an IAEA Coordinated Research Project. The contributors to this large piece of work have published details of their research in the following articles:

1 -Phytosanitary irradiation treatment of the aerial root mealybug, Pseudococcus baliteus (Hemiptera: Pseudococcidae)
Qing-Ying Zhao, Fu-Huan Ma, Wei Deng, Zhi-Hong Li, Zi-Jiao Song, Chen Ma, Yong Lin Ren, Xin Du, and Guo-Ping Zhan
Journal of Economic Entomology, 2023;, toad170,

2 – Gamma and X-ray irradiation as a phytosanitary treatment against various stages of Planococcus lilacinus (Hemiptera: Pseudococcidae)
Chen Ma, Hui Liu, Bo Liu,, Ju-Peng Zhao, Qing-Ying Zhao, Zi-Jiao Song, Xin Han, and Guo-Ping Zhan
Journal of Asia-Pacific Entomology 25 (2022) 102009

3 –  Quarantine Disinfestation of Papaya Mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) Using Gamma and X-rays Irradiation
Zi-Jiao Song, Qing-Ying Zhao, Chen Ma, Ran-Ran Chen, Tian-Bi Ma, Zhi-Hong Li and Guo-Ping Zhan
Insects 2023, 14, 682.


Picture: Papaya mealybug