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- Zuparko, R.L., et al. Show all 2 Author
- Environmental entomology 1995 v.24 no.3 pp. 730-737
- geographical distribution; Eucallipterus tiliae; biological control agents; surveys; new host records; Aphelinus; Trioxys; population density; hyperparasitoids; California
- ... Trioxys curvicaudus Mackauer was imported into northern California in 1970 for control of the linden aphid, Eucallipterus tiliae (L.). In 1991, it was found no farther than 40 km from the release sites, but in this area it is the dominant primary parasitoid attacking the aphid. This limited distribution is attributed mainly to the scarcity of favored hosts; climatic conditions play a contributory ...
- Zuparko, R.L., et al. Show all 5 Authors
- Environmental entomology 1999 v.28 no.5 pp. 845-850
- Eucallipterus tiliae; parasitoids; sampling; canopy; Linepithema humile; biological control agents; predators; Tilia cordata; seasonal variation; population density; natural enemies; biological control; California
- ... Introduced Eucallipterus tiliae (L.) populations on Tilia cordata Miller in northern California were sampled from 1981 to 1987. E. tiliae was more abundant in the lower canopy, with a tendency toward higher numbers in the northeastern sides of trees, but had no consistent pattern regarding inner versus outer canopy. Aphid population densities fluctuated irregularly each season and were not associa ...