Environmental Entomology (1981) 10, 654-660

Jacques Régnière, Robert L. Rabb and R.E. Stinner (1981)
Popillia japonica: Intraspecific competition among grubs
Environmental Entomology 10 (5), 654-660
Abstract: Japanese beetle grubs of the three larval instars were reared at varying densities, and their survival rates were compared. Although, 1st-instar grubs survived better at higher densities, 2nd and 3rd instars had lower survival in crowded conditions. An analysis of the weight of grubs reared at various densities suggests that competition occurred which caused higher mortality among smaller individuals.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Jacques Regniere

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Popillia japonica