Hyphantria cunea found in Tessin (CH)
Hyphantria cunea (EPPO A2 quarantine pest) was found for the first time in Tessin, Switzerland, in 1991. During the following years (from 1991 to 1994), adults were trapped in the south of Tessin. In 1993, two foci of larvae were found for the first time on grapevine and on Salix caprea. However, the number of trapped insects was low and in 1994 no attack of larvae was reported. The authors felt that, according to all these observations, it is not possible to conclude whether these findings correspond to a progressive migration of the insect from Italy or to a colonization of Switzerland from small foci which escaped the control measures applied.
Jermini, M.; Bonavia, M.; Brunetti, R.; Mauri, G.; Cavalli, V. (1995) Metcalfa pruinosa Say, Hyphantria cunea (Drury) et Dichelomyia oenophila Haimah., trois curiosités entomologiques ou trois nouveaux problèmes phytosanitaires pour le Tessin et la Suisse ?
Revue Suisse de Viticulture, Arboriculture, Horticulture 27(1), 57-63.