Aulacaspis yasumatsui Delivers a Blow to International Cycad Horticulture

Horticulturae

Gillian W. Watson¹  Anders J. Lindström²  Thomas E. Marler³ 

[1] Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK;Plant Collections Department, Nong Nooch Tropical Botanical Garden, 34/1 Sukhumvit Highway, Najomtien, Sattahip, Chonburi 20250, Thailand;Western Pacific Tropical Research Center, University of Guam, UOG Station, Mangilao, GU 96923, USA;

关键词: biological control;    cycad;    Cycas micronesica;    invasion biology;   

DOI  :  10.3390/horticulturae7060147

来源: DOAJ

【 摘 要 】

The literature covering the biology, invasion chronology, host plant responses, and control efforts of the armored scale Aulacaspis yasumatsui Takagi (Hempitera: Diaspididae) is reviewed. The small size of this cycad pest and complex surface morphology of the host cycad organs combine to make visual detection of every cryptic infestation difficult or impossible to achieve. The international movement of Cycas revoluta Thunb. nursery plants and the presence of C. revoluta nursery industries in so many countries have enabled this pest to wreak havoc on the international cycad horticulture trade over the last 25 years. The short pre-oviposition period and considerable female fecundity lead to rapid population expansion on the plants initially infested in newly invaded regions. A depletion of non-structural carbohydrates accompanies long-term infestations and precedes plant death. Enemy escape within the invasive range allows the scale population growth to remain unchecked until anthropogenic efforts establish non-native biological control.

【 授权许可】

Unknown