Environmental Entomology (2000) 29, 195-199
Wendell L. Morrill, James W. Gabor, David K. Weaver, Gregory D. Kushnak and Norma J. Irish (2000)
Effect of host plant quality on the sex ratio and fitness of female wheat stem sawflies (Hymenoptera: Cephidae)
Environmental Entomology 29 (2), 195-199
Abstract: Larvae of the wheat stem sawfly, Cephus cinctus Norton, feed and complete their development within the lumen of wheat and other hollow-stemmed grasses. Stems with large diameters are preferred and are the most suitable hosts. The sex ratios of wasps are male-biased in small stems and female-biased in large stems. Sawfly fitness, as indicated by wasp size, fecundity, and longevity, increases with host stem size.
(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): Wendell L. Morrill
Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
Pest and/or beneficial records:
Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
---|---|---|---|---|
Cephus cinctus | Wheat (Triticum) |