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Index of Subjects Hi Chris, From your description, I'd say that I and several of my neighbours likely have the infestation you want to know about. I haven't seen the caterpillars but the leaf damage you describe sounds very familiar. Speaking for myself, this has been occurring in lilacs on my property since I first transplanted some form my neighbours some 26-29 years ago. While I have cut down some over the years because they look so awful by the end of the season, the remaining ones, all similarly affected, still start out looking quite good each spring, and they still produce abundant blooms. Any that have re-grown after being cut down are also all affected. Eleanor Lindsay Seabright, St Margarets Bay c.majka@ns.sympatico.ca wrote: > Hi folks, > > I've spent a fair bit of this weekend battling an infestation of Lilac > Leafminer (/Gracillaria syringella/), the caterpillar of a small moth > in Gracillaridae, which is attacking the lilacs in my backyard. As the > name suggest, the young larvae initially mine leaves leaving > discoloured green blotches on the leaves which eventually turn brown. > As the larvae mature the exit the leaves and collectively roll up the > leaves to create a tube in which they live and on which they feed. In > lilacs here in Halifax they can cause a significant amount of > defoliation by the end of the season. > > This is an European species which was inadvertently introduced to > North America, first appearing in Ontario in 1923. I'd be very > interested in ascertaining how widely distributed this species is in > Nova Scotia. The damage the cause is quite characteristic. If you've > noticed this damage on lilacs, I'd appreciate hearing where and when. > There is a good photograph of the moth located at: > > http://www.danske-natur.dk/images6/mor1030a.jpg > > Ana a photo of leaf damage done by the caterpillars at: > > http://www.gov.pe.ca/photos/original/af_lilac_LM.jpg > > Many thanks! > > Chris > > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. > > Christopher Majka - Nova Scotia Museum of Natural History > > 1747 Summer Street, Halifax, Nova Scotia, Canada B3H 3A6 > > (902) 424-6435 Email <c.majka@ns.sympatico.ca > <mailto:c.majka@ns.sympatico.ca>> > > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. > >
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