Occurrence of Boisduval Scale,Diaspis boisduvalii(Hemiptera: Diaspididae), on Native Epiphytic Orchids in Collier Co., Florida, Including Fakahatchee Strand State Preserve

Haleigh A. Ray, John P. McCormick, Andrew L. Stice, Ian C. Stocks, Lawrence W. Zettler
2012 Florida Entomologist  
We present the results of a field study conducted in 2011 to assess native epiphytic orchids in South Florida for infestations of armored scales (Hemiptera: Coccoidea: Diaspididae). A total of 1,726 orchids spanning 10 taxa were surveyed at 7 locations at 3 sites. Boisduval scale, Diaspis boisduvalii Signoret, was detected on 2.3% of the orchids from 6 of the 10 orchid species, and was present at all 3 primary sites surveyed. Prosthechea cochleata and Epidendrum amphistomum (Asparagales:
more » ... Asparagales: Orchidaceae) appeared to be most vulnerable to this scale, with infection totals of 5.8% and 2.1%, respectively. Of 44 scales from the 39 orchids, 27% hosted hymenopteran parasitoids in various stages of development. The presence of D. boisduvalii adds an additional burden to state-endangered orchid populations and indicates that resource managers may need to expand management approaches to include plant-parasitic insect control.
doi:10.1653/024.095.0211 fatcat:6kongugylbdlvkx6eggxkzf3ui