An open-top field chamber to assess the impact of air pollution on plants. Altered feeding preferences for Mexican bean beetle Epilachna varivestis for ozonated soybean foliage.

Effects of ozone on soybean resistance to the Mexican bean beetle ( Epilachna varivestis Mulsant). E., Mebrahtu, T., Rangappa, M., and Benepal, P. A supplemental ultraviolet-B radiation system for open-top field chambers. Effects of ozone on feeding preference, growth and consumption rates of monarch butterflies ( Danaus plexippus). Influence of ozone air pollution on plantherbivore interactions. Wiley Interscience, New York.īolsinger, M., Lier, M. Effects of electromagnetic radiation on insect-plant interactions, pp. Toxicity of a furanocoumarin to armyworms: A case of biosynthetic escape from insect herbivores. Observations on house flies in high-ozone environments. Elsevier Science Publisher, Amsterdam.īeard, R. The influence of UV-B radiation on the physiochemical nature of tobacco ( Nicotiana tabacum L.) leaf surface. Phenotypic correlations of weather fleck with certain agronomic and chemical traits in Maryland tobacco. Effects of air pollutants on insect populations. Ozone lesions in relation to senescence of attached and detached leaves of tobacco. Increased survival and growth response of hornworm larvae to elevated O 3 levels in these experiments suggests that similar responses could occur in the southeastern US tobacco production areas where O 3 levels can be high enough to injure tobacco plants.Īdepipe, N.

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.

Second instars also gained significantly more weight when they were fed for one week on plants exposed to elevated levels of O 3 than when they were fed plants grown in charcoal-filtered air. Survival of tobacco hornworm, Manduca sexta, larvae was increased when second instars were fed tobacco leaves grown in chambers with elevated levels of O 3. Ozone concentrations were established by charcoal filtration, which reduced O 3 to approximately one-half ambient, or by the addition of O 3 to unfiltered air to increase concentrations to approximately 1.4 or 1.7 times ambient O 3. Tobacco plants, Nicotiana tabacum were grown under different levels of ozone (O 3) in open-top chambers.

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