Coroebus elatus and Otiorrhynchus rugosostriatus, pests of strawberry root.
Field experiments were conducted in Smederevo, Serbia and Montenegro, Yugoslavia, in 2005, to determine strawberry plant damage caused by the larvae of Coroebus elatus [Coraebus elatus] and Otiorrhynchus rugosostriatus [Otiorhynchus rugosostriatus]. C. elatus has one generation and overwinters as a larva in the root. O. rugosostriatus overwinters in different larval instars in the soil. Adults of both species feed on strawberry leaves but do not cause serious damage. The larvae, however, are very harmful. Larvae of C. elatus makes spiral galleries through the root, while O. rugosostriatus larvae feed on the root and also bore into the central part of the root. Infested plants have yellow and withered leaves and then whole plants died. Control of C. elatus and O. rugosostriatus is possible by removing and destroying infested plants. Chemical control can be used only after harvest and in the period of adult activity.