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Dichromothrips smithi (Zimmermann), a New Thrips Species Infesting Bamboo Orchids Arundina graminifolia (D. Don) Hochr. and Commercially Grown Orchids in Hawaii

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Title: Dichromothrips smithi (Zimmermann), a New Thrips Species Infesting Bamboo Orchids Arundina graminifolia (D. Don) Hochr. and Commercially Grown Orchids in Hawaii
Authors: Hollingsworth, Robert G.
Calvert, Frnces
Hara, Arnold H.
Keywords: Dichromothrips smithi, bamboo orchids, dendrobium orchids, thrips aggregation
Issue Date: Dec 2012
Publisher: Hawaiian Entomological Society
Citation: Proceedings of the Hawaiian Entomological Society (2012) 44:1–9
Abstract: Dichromothrips smithi (Zimmermann 1990), a thrips species native to
SE Asia that feeds on orchids, was first detected in Hawaii in 2007. At the time it
was detected, it was already widespread on bamboo orchids in the Puna district
of the island of Hawaii. The build-up of the pest in bamboo orchids threatens
adjacent commercial orchid farms, several of which have reported this species as
a pest. A survey on bamboo orchids in the Puna District showed that adults were
highly aggregated in flowers. In an unsprayed planting of dendrobium orchids in E.
Hawaii, D. smithi was the dominant thrips species present over a two-year period.
Higher numbers of D. smithi adults and larvae were found on bamboo orchids
growing as volunteers within this planting, suggesting that bambbe used as a trap crop to protect more valuable types of orchids.
URI/DOI: http://hdl.handle.net/10125/25458
ISSN: 0073-134X
Rights: Attribution-NonCommercial-NoDerivs 3.0 United States
Appears in Collections:Volume 44 - December 2012 : Hawaiian Entomological Society



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