White grubs, Holotrichia rustica and Holotrichia mucida （Coleoptera： Scarabaeidae） as pests of teak （Tectona grandis L. f.） seedlings

作     者：Nitin Kulkarni Sanjay Paunikar Kailash Chandra Joshi John Rogers 

作者机构：Tropical Forest Research Institute Jabalpur India Research Connections and Consulting P.O. Box 350 Toowong Queensland 4066 Australia 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2009年第16卷第6期

页      面：519-525页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0904[农学-植物保护] 090402[农学-农业昆虫与害虫防治] 

基　　金：Acknowledgments Authors are thankful to the Dr. A.K. Mandal  Director  Tropical Forest Research Institute  Jabalpur (M.P.) India  for providing facilities. Thanks are also due to the Forest Development Corporation of Maharashtra Ltd. (FDCM)  Nagpur (M.S.) India  for financial assistance and particularly to Mr. EN. Wagh  Range Forest Officer  FDCM for his active cooperation. Dr. Kailash Chandra  Officer-in- Charge  Central Regional Station  Zoological Survey of India  Jabalpur (M.R) India  deserves thanks for identification of the beetles. Meteorological data received from India Meteorological Centre  Nagpur (India)  is also thankfully acknowledged 

主　　题：adult emergence chafer beetles environmental factors incidence Indian scarabs insect pests Melolonthinae population density Ziziphus 

摘      要：Field observations were carried out between 2002 and 2005 on bio-ecology of white grubs infesting teak （Tectona grandis Linn. f.） seedlings at Ramdongari Forest Nursery, Forest Development Corporation of Maharashtra, Nagpur in central India. The study collected the data required for an integrated pest management strategy against the white grubs. The species damaging teak seedlings were Holotrichia rustica （Burmeister） and H. mucida Gyllenhal. The beetles （adults） of both these species began to emerge just after the pre-monsoon showers and when the relative humidity had risen rapidly over several days, but before the first monsoon rains. While the adults fed and mated on naturally growing bushes of Ziziphus jujuba, Z mauritiana, Z. xylopyra, Acacia leucophloea and A. catechu immediately after the emergence from the teak beds in the nursery, the immature stages （grubs） of both species fed on roots of the teak seedling, leading to plant death. This is the first report of （i） damage caused to teak seedlings by grubs ofH. rustica and H. mucida, and （ii） of *** and Z. mauritiana being hosts for the beetles ofH. mucida and H, rustica. It is also the first detailed report on the field bio-ecology of the H. rustica and H. mucida as major pests ofteak. White grubs are among the toughest-to-manage pests of economic importance and information presented here on the pest incidence and damage ofH. rustica and H. mucida is important to researchers and nursery field managers for the management of these pests on teak.