Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (1): 148-156.DOI: 10.3969/j.issn.1000-2561.2020.01.021

• Crop Pests, Diseases and Their Control, Environmental Protection • Previous Articles     Next Articles

Pest Survey and Safety Assessment on Five Islands of Yongle Archipelago

CHEN Qing,LIANG Xiao,WU Chunling,CHEN Qian   

  1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests / Hainan Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pests, Haikou, Hainan 571101, China
  • Received:2019-06-05 Revised:2019-07-29 Online:2020-01-25 Published:2020-01-21


The occurrence and damage of plant pests on the islands of Yongle Archipelago have not been reported so far. In order to effectively monitor the invasion, colonization, diffusion and outbreak of exotic pests in Yongle Archipelago, a systematic survey and safety assessment of pests in the five islands of Yongle Archipelago were conducted. The results showed that 83 pests (mites) were found on 97 species of wild halophytes, green sand-fixing plants and salt-tolerant vegetables in the five islands, of which 26 pests (mites) were found on 38 plants in Jinqing Island, 20 pests (mites) were found on 30 plants in Ganquan Island, 14 pests (mites) were found on 16 plants in Yinyu Island, 12 pests (mites) were found on 5 plants on Yagong Island and 12 pests were found on 10 plants of Antelope Reef. The above results are the first reports of plant pests (mites) on the five islands of Yongle Archipelago. In present survey, Phenacoccus solenopsis, Dysmicoccus neobrevipes, Liriomyza sativae, Utetheisa lotrix, Arge geei, Gynaikothrips ficorum and Tetranychus cinnabarinus were first found to seriously infested 32 species of plants on the five islands. In addition, according to the safety assessment results of the national quarantine destructive pests, Michelia fusanensis and M. neopineapple, the risk assessment indices R of the two pests was 2.21 and 2.23, respectively. They were highly dangerous pests in Yongle Islands and should be strictly controlled. This study is of important theoretical and practical significance for the sustainable prevention and control of plant pests, the ecological environment as well as the crop safety on Yongle Archipelago.

Key words: Yongle Archipelago, pest survey, safety assessment

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