Growth,development, feeding preference,and food consumption and utilization by tobacco hornworm on tobacco mosaic virus-infected and non-infected tobacco leaves |
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| Authors: | X Wan P Barbosa |
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| Institution: | (1) Department of Entomology, University of Maryland, 20742 College Park, Maryland, USA;(2) Present address: Department of Biological Sciences, Bowling Green University, 43402 Bowling Green, Ohio, USA |
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| Abstract: | Summary Plant disease may cause a variety of changes in plants which influence their suitability to insect herbivores. The reported physiological changes in tobacco due to infection by tobacco mosaic virus have the potential to influence the feeding, growth and behavior of the tobacco hornworm,Manduca sexta. However, feeding on foliage of systematically infected plants had no statistically significant effects on development time, mean pupal weight or the amount of foliage consumed by 4th instars. Although an initial preference was exhibited by larvae for healthy leaves after about 72 h no differences were observed. These results do not support the results of previous research on the influence of tobacco mosaic virus-infected plants on the tobacco hornworm.Scientific contribution No. 8130, article No. A-5071, of the Maryland Agricultural Experiment Station, Department of Entomology |
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| Keywords: | Manduca sexta tobacco mosaic virus tobacco hornworm plant pathogen/insect interaction |
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