Santos Rodrigo S, Freitas Sérgio de
Depto. de Fitossanidade, Faculdade de Ciências Agrárias e Veterinárias, Univ. Estadual Paulista, Jaboticabal, SP, 14884-900.
Neotrop Entomol. 2008 Sep-Oct;37(5):571-6. doi: 10.1590/s1519-566x2008000500012.
The rubber tree lace bug, Leptopharsa heveae Drake & Poor occurs in high populations in rubber tree plantations and it is a limiting factor in rubber production due to the loss of photosynthetic tissue. The control of the pest has been made mainly with chemical products, which cause environmental contamination. The alternative would be the use of biological control agents, however, information about L. heveae natural enemies are scarce. The parasitoid Erythmelus tingitiphagus (Soares) parasitize eggs of the rubber tree lace bug. The aim of this study was to verify the occurrence of E. tingitiphagus in plantations of several rubber tree clones, located in Itiquira town, Mato Grosso State. The plant leaflets of the clones RRIM 600, PR 255, GT 1, PB 235 and PB 217 were collected weekly from October 2005 to February 2006. Parasitism was recorded during the entire study period. The parasitism rate of L. heveae eggs in the different clones ranged from 16.8 to 20.6%.
橡胶树网蝽（Leptopharsa heveae Drake & Poor）在橡胶种植园中大量出现，由于光合组织受损，它成为橡胶生产的一个限制因素。该害虫的防治主要依靠化学产品，但这会造成环境污染。另一种选择是使用生物防治剂，然而，关于橡胶树网蝽天敌的信息却很匮乏。寄生蜂Erythmelus tingitiphagus（Soares）寄生于橡胶树网蝽的卵。本研究的目的是核实位于马托格罗索州伊蒂基拉镇的多个橡胶树无性系种植园中E. tingitiphagus的出现情况。从2005年10月至2006年2月，每周采集RRIM 600、PR 255、GT 1、PB 235和PB 217无性系的植物小叶。在整个研究期间记录寄生情况。不同无性系中橡胶树网蝽卵的寄生率在16.8%至20.6%之间。
