Show desirable insect immigrants tho the australian ladybird beetle cams came into california to destroy the chita scalo scale in the late SOs and this was followed by tha carriage of the same species of beetle with equally good results to portugal to italy to south africa aud and quite recently to formosa lc in all cases destroying the raine scale insect another instance was the importation from allu aliu of certain par hafi aultes of the sugar cane leaf into hawaii which la Is said ts to have ro re suited butted in the reduction of 0 the numbers of the leaf hoppers to a negligible quantity A gigantic experiment of 0 the same rame kind is now being carried on in tile the importation of 0 parasites and natural enemies of the gypsy moth and the brown tall aall moth from all parts of europe and from japan into the new england states A number of species have already been introduced and acclimated and id mirable results are expected froin I 1 this worl work exchange |