Feeding of Frankliniella occidentalis on chrysanthemums and incidence of tomato spotted wilt virus
The feeding damage of Frankliniella occidentalis (EPPO A2 pest) to 27 cultivars of florist's chrysanthemum (Dendranthema grandiflora) were defined and its correlation to the incidence of tomato spotted wilt virus (potential EPPO A2 organism) was assessed in Canada.
It was assessed that feeding damage on yellow flowering cultivars was significantly higher than those on white flowering ones during the pre-bloom period. Correlations between feeding damage and the incidence of tomato spotted wilt virus were only low and the authors suggest that the virus susceptibility of cultivars is epidemiologically more important than the feeding activity of F. occidentalis.
Sources
Broadbent, B.A.; Matteoni, J.A.; Allen, W.R. (1990) Feeding preferences of the western flower thrips, Frankliniella occidentalis and incidence of tomato spotted wilt virus among of cultivars of florist's chrysanthemum.
Canadian Entomologist 122, 1111-1117.