NDLI: Life history of Eretmocerus mundus, a parasitoid of Bemisia tabaci, on tomato and sweet pepper

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Life history of Eretmocerus mundus, a parasitoid of Bemisia tabaci, on tomato and sweet pepper

Content Provider	Springer Nature Link
Author	Urbaneja, Alberto Sánchez, Eugenia Stansly, Philip A.
Copyright Year	2006
Abstract	Eretmocerus mundus is native to the Mediterranean region where it is often observed to enter greenhouses to parasitize B. tabaci on fruiting vegetables and other host crops. Fecundity on tomato and pepper was evaluated by placing newly emerged pairs (n = 15) of E. mundus on leaf discs infested with second instar B. tabaci, the preferred stage, maintained at 25 °C and changed daily until death of the female. All whitefly nymphs were observed for host feeding and inverted to count parasitoid eggs. Adult longevity was estimated at 7.3±0.8 d on tomato and 10.1±1.0 d on sweet pepper. Fecundity (number of hosts parasitized) was estimated 147.8±12.6 per female on tomato and 171.1±21.5 on pepper. Incidence of host feeding (number of hosts killed) was significantly greater on sweet pepper than on tomato, 15.6±1.9 vs. 10.4±1.3 nymphs per female, respectively. No significant differences were detected in the duration of life stages between sweet pepper and tomato. Preimaginal survivorship in clip cages was estimated at 69.5±11.9% on tomato and 76.6±10.5% on sweet pepper, with no statistical differences. Net reproductive rate (R o) was estimated at 63.8±8.2 and 51.0±4.4 on tomato and sweet pepper respectively. Generation time (T) was significantly greater on sweet pepper (19.3±0.5) than on tomato (17.9±0.4), but the estimate of intrinsic rate of increase (r m) was not statistically different at 0.216±0.005 and 0.219±0.004 respectively. These values are well above those reported for B. tabaci on any crop, indicating the potential of E. mundus to control this pest on solanaceous crops in the greenhouse.
Starting Page	25
Ending Page	39
Page Count	15
File Format	PDF
ISSN	13866141
Journal	BioControl
Volume Number	52
Issue Number	1
e-ISSN	15738248
Language	English
Publisher	Springer Netherlands
Publisher Date	2006-08-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	whitefly biology augmentative biological control fecundity developmental time life table demographic parameters intrinsic rate of increase Plant Sciences Animal Systematics/Taxonomy/Biogeography Plant Pathology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Insect Science Agronomy and Crop Science

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