Physiological-aspects of Damage Caused By Spider-mites On Tomatoes Leaflets
(1992) Journal of Applied Entomology (Print) — Vol. 113, n° 5, p. 487-492 (1992)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- The two-spotted spider mite Tetranychus urticae Koch is one of the most common plant pests, feeding on leaves. The damage caused by this mite on tomato Lycopersicon esculentum Mill was classified in five visual degrees of a damage on leaflets index, each related to a mean spider mites density. According to these visual damages, the injury to leaflets was further investigated by analysing two important physiological processes: photosynthesis through assimilation of CO2, and transpiration through stomatal resistance to water diffusion. As results, the assimilation Of CO2 decreased exponentially with the increasing damage, whereas the density of the total spider mites was related to the latest by a positive exponential relation. On the other hand, the resistance to water diffusion was not well related to spider mite damage; it only appeared that the stomatal resistance increase was very limited until damage degree three, corresponding to a mean of 23 spider mites by dm2, was reached.
- Affiliations
Citations
Nihoul, PP., Hance, T., Van Impe, G., & Marechal, B. (1992). Physiological-aspects of Damage Caused By Spider-mites On Tomatoes Leaflets. Journal of Applied Entomology (Print), 113(5), 487-492. https://hdl.handle.net/2078.5/49530 (Original work published 1992)