Investigation on Species of Natural Enemies from Natural Population of Ericerus pela (Chavannes) and Their Damage in Kunming

Damage and species of natural enemies of the White Wax Insect, Ericerus pela (Chavannes) were surveyed in Kunming of Yunnan Province. The results show that the total of species are 17 which belong to 12 genera,6 families,2 orders, of which 4 species are dominant natural enemies,i.e. Metaphycus ericeri Xu et Jiang, Microterys sinicus Jiang, Microterys ericeri Ishii and Chilocorus rubidus Hope. Under the artificial breeding condition,their damage rates are 11.0%,35.0%,13.6% and 11.6% respectively. Chilocorus septempunctata L. and Lexis axyridis (Pallas) have been recorded as the most important natural enemies of the white wax insect. The bag of polyamide fiber, which used to cultivate brood insects of Ericerus pela, was used to control the continous damage of Anthribinus lajievorus Chao, and the maximal damage rate was only 2% in Kunming area.