Biocontrol Science and Technology (2012) 22, 659-670

M.R. Mehrnejad (2012)
Biological parameters of Elasmus nudus (Hymenoptera, Eulophidae), a parasitoid of the pistachio fruit hull borer moth, Arimania komaroffi (Lepidoptera, Pyralidae)
Biocontrol Science and Technology 22 (6), 659-670
Abstract: Elasmus nudus (Nees) is known as a synovigenic, gregarious ectoparasitoid of the pistachio fruit hull borer moth, Arimania komaroffi Ragonot in pistachio plantations in southern Iran. The biological parameters of this parasitoid were studied using the Mediterranean flour moth, Ephestia kuehniella Zeller as a host and the resulting data were compared with that of its native host, A. komaroffi. The parasitoid developed successfully from egg to adult over a temperature range of 17-35°C. The developmental times of the parasitoid on A. komaroffi and E. kuehniella were not significantly different. The threshold value at which the development rate of E. nudus was zero was estimated to be 9.2°C and the estimated number of degree days (°D) for development from egg to adult was 238 above this threshold. The reproductive potential of E. nudus was similar on both hosts at 30°C. The intrinsic rate of natural increase (r _m ) for E. nudus did not vary much between 25°C and 32.5°C. In addition, the clutch size of the parasitoid on the two hosts was not statistically different. The present study provides some basic information on the biological characteristics of E. nudus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): M. Reza Mehrnejad

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Arimania komaroffi	Pistachio nut and relatives (Pistacia)	Iran
Elasmus nudus (parasitoid)	Arimania komaroffi	Pistachio nut and relatives (Pistacia)	Iran