NZPPS   ·  Journal home   ·   Past issues  ·  This volume   ·   Previous abstract   ·   Next abstract



New Zealand Plant Protection 62 (2009): 156-160

Diurnal rhythms of emergence, host feeding and oviposition of Eretmocerus warrae (Hymenoptera: Aphelinidae)

A. Hanan, X.Z. He, M. Shakeel and Q. Wang

ABSTRACT

Eretmocerus warrae is a parasitoid of greenhouse whitefly, Trialeurodes vaporariorum. It was first detected in New Zealand in 1997 during a survey of greenhouses in Auckland. In the laboratory at 221C, 605% RH and 16:8 h light:dark, significantly higher adult emergence occurred after 2-3 h of light. No emergence was observed during the scotophase. Host feeding and oviposition occurred in both the photophase and scotophase. In the photophase, host feeding by E. warrae tended to be higher after 4-6 h of light than at other stages of photophase. In the scotophase, the number of hosts fed on by E. warrae was significantly higher 2 h before lights came on. The number of eggs laid was significantly higher 10-14 h into the photophase than at other stages. There tended to be higher oviposition in the first 2 h of darkness.

Keywords: Eretmocerus warrae, whitefly, emergence, host feeding, eggs laid.

Related articles
pdfHost feeding and oviposition strategy of Eretmocerus warrae (Aphelinidae: Hymenoptera) under different host densities
A. Hanan, X.Z. He and Q. Wang (2012)
New Zealand Plant Protection 65: 133-137
pdfEffect of food supply on reproductive potential of Eretmocerus warrae (Hymenoptera: Aphelinidae)
A. Hanan, X. Z. He, M. Shakeel and Q. Wang (2010)
New Zealand Plant Protection 63: 113-117
pdfEretmocerus eremicus: a new whitefly parasitoid found in New Zealand
P.J. Workman, I.A.W. Scott and G.M. Drayton (2008)
New Zealand Plant Protection 61: 386
pdfEmergence, sexual maturation and oviposition of Aphidius ervi (Hymenoptera: Aphidiidae)
X.Z. He, Q. Wang and D.A.J. Teulon (2004)
New Zealand Plant Protection 57: 214-220
pdfImplications of host weevil circadian activity for parasitism by Microctonus aethiopoides (Hymenoptera: Braconidae)
K.M. Couch, A.S. Cresswell, B.I.P. Barratt and A.A. Evans (1997)
Proceedings of the NZ Plant Protection Conference 50: 227-231

Copyright © 2009 New Zealand Plant Protection Society (Inc.).

Please refer to the terms of use.