4 OCTOBER 1946, Page 15

A Bad Butterfly

There seems to be one exception to the statement that no butterflies do any harm except the Cabbage Whites. A great authority tells me that the Painted Lady is an enemy of the globe artichoke! Moths of course are in a quite different category. Crops of sugar beet, peas, mangolds and flax have this year been much damaged, especially near Dymchurch. in Kent, by larvae of the silver Y moth, that noted immigrant. They came, I am told, from Sweden via N. Denmark.