Host range test of Corythucha ciliata
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Key Words： Corythucha ciliata, host range, Platanus spp
Abstract： The host preferences of Corythucha ciliata (Say) were tested with 27 plant species from 19 families in a laboratory in Shanghai. A non-choice trial showed that although nymphs could feed on Platanus occidentalis, Platanus acerifolia, Platanus orientalis, Prunus cerasifera, Broussonetia papyrifera and Acer rubrum, they ate more of P. occidentalis, P. acerifolia, P. orientalis, P. cerasifera and B. papyrifera. Adults could also feed on all of the above 6 plants but preferred P. occidentalis, P. acerifolia, P. orientalis and P. cerasifera. C. ciliata could only complete its life history on P. occidentalis, P. acerifolia and P. orientalis. A choice test confirmed that adults preferred P. occidentalis, P. acerifolia and P. orientalis; although some could eat P. cerasifera none fed on A. rubrum and B. papyrifera. Adults only laid eggs on P. occidentalis, P. acerifolia and P. orientalis. Thus, the host range of C. ciliata is essentially restricted to plants of the genus Platanus.
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