National Geographic : 1929 Jul
INSECT RIVALS OF THE RAINBOW COLLECTORS OF PARASITIZED JAPANESE BEETLES AT SAPPORO, JAPAN Scores of women and children of Japan have been enlisted in the work of gathering proved parasites of the Japanese beetle to send to the United States and help us destroy the beetle by this means. Photographs courtesy U. S. Department of Agriculture ARMIES OF ALLIES BEING SHIPPED FROM KOIWAI, JAPAN, TO RIVERTON, NEW JERSEY Nearly 8,000 parasitized grubs of the Japanese beetle are contained in the boxes of this shipment. The parasites belong to the Scoliid wasp family. While man probably will continue to resort to mechanical warfare in holding the Japanese beetle in check, the major offensive is being conducted by insect allies imported from Japan, including three species of the Tachina fly family (see text, page 67), two species of the Dexiid fly family (see text, page 70), four species of the Scoliid wasp family (see text, page 52), and one species of the Carabid beetle family (see text, page 86).