Inability of Frankliniella occidentalis to overwinter in southern Canada
Experiments in southern Ontario, CA, dealt with the capability of Frankliniella occidentalis (EPPO A2 quarantine pest) to overwinter in the region. It was found that neither laboratory-reared nor field-collected populations of the pest were able to overwinter on garden chrysanthemums in two locations. The latest collection of live thrips occurred at the beginning of January. It was also found that introduced wild populations of F. occidentalis heavily infesting a tomato field did not survive the winter.
Broadbent, A.B.; Hunt, D.W.A. (1991) Inability of western flower thrips, Frankliniella occidentalis, to overwinter in southern Ontario.
Proceedings of the Entomological Society of Ontario 122, 47-49.