Journal of Chemical Ecology (2000) 26, 1-19

D. Michael Jackson, T.W. Rufty, A.S. Heagle, R.F. Severson and R.V.W. Eckel (2000)
Survival and development of tobacco hornworm larvae on tobacco plants grown under elevated levels of ozone
Journal of Chemical Ecology 26 (1), 1-19
Abstract: Tobacco plants, Nicotiana tabacum were grown under different levels of ozone (O₃) in open-top chambers. Ozone concentrations were established by charcoal filtration, which reduced O₃ to approximately one-half ambient, or by the addition of O₃ to unfiltered air to increase concentrations to approximately 1.4 or 1.7 times ambient O₃. Survival of tobacco hornworm, Manduca sexta, larvae was increased when second instars were fed tobacco leaves grown in chambers with elevated levels of O₃. Second instars also gained significantly more weight when they were fed for one week on plants exposed to elevated levels of O₃ than when they were fed plants grown in charcoal-filtered air. Ozone-treated tobacco plants had higher levels of total nitrogen (primarily reduced nitrogen) and soluble carbohydrates (sugars), and lower levels of leaf-surface components, starch, nicotine, and rutin. Increased survival and growth response of hornworm larvae to elevated O₃ levels in these experiments suggests that similar responses could occur in the southeastern US tobacco production areas where O₃ levels can be high enough to injure tobacco plants.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): D. Michael Jackson

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Manduca sexta	Tobacco (Nicotiana tabacum)