Article
Susceptibility of 32 elm species and hybrids (Ulmus spp.) to the elm leaf beetle (Coleoptera: Chrysomelidae) under field conditions in Arizona.
Journal of economic entomology - 1 Dec 2007
Bosu Paul P, Miller Fredric, Wagner Michael R
Abstract excerpt
We evaluated elm leaf beetle, Pyrhalta luteola (Müller) (Coleoptera: Chrysomelidae), defoliation of 32 elm species or hybrids (taxa) established under field conditions in Holbrook, AZ. Percentage of defoliation, number of eggs, and number of larvae were estimated on randomly selected 15-cm shoot lengths annually in July, from 1996 to 2001. The following nine taxa consistently sustained 15-46% mean overall...
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