Resistance in Lycopersicon spp. to the two-spotted spider mite Tetranychus urticae (Koch) | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 12, Issue 1, 2004, Pages 27-38 PDF (395.69 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2004.459475 | ||
| Author | ||
| Nashaat A. Aly* | ||
| Plant Protection Research Institute, Agricultural Research Center, Egypt | ||
| Abstract | ||
| Resistance to the two-spotted spider mite Tetranychus urticae (Koch) was observed in the greenhouse in accessions of tomato, Lycopersicon pennellii, L. hirsutum, L. hirsutum f. glabratum and L. esculentum. Survival, mortality, avoidance and fecundity of the mites were related to type VI Trichome density and/or other covariants of leaflets development. In general, Type VI density L. hirsutum and pennellii leaflets were more resistant than those of L. esculentum. Mite mortalities were associated with the presence of Lycopersicon spp., Type VI Trichome and mite avoidance were associated with other factors that covaried with Lycopersicon spp., leaflet development and leaflet surface. Also, hirsutum and pennellii accessions were more resistive to T. urticae than esculentum. Spider mite resistance was correlated with Type VI Trichome density on Lycopersicon spp. Mortality of mites in topical application was higher with wild tomato species than the cultivated tomato species. | ||
| Keywords | ||
| Resistance; Lycopersicon spp; two-spotted spider mite; Tetranychus urticae (Koch) | ||
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