Importance of carbohydrate sources to the reproductive output of the wheat armyworm Pseudaletia sequax
Article first published online: 20 SEP 2011
Published 2011. This article is a U.S. Government work and is in the public domain in the USA
Agricultural and Forest Entomology
Volume 14, Issue 1, pages 29–35, February 2012
How to Cite
Marchioro, C. A. and Foerster, L. A. (2012), Importance of carbohydrate sources to the reproductive output of the wheat armyworm Pseudaletia sequax. Agricultural and Forest Entomology, 14: 29–35. doi: 10.1111/j.1461-9563.2011.00548.x
- Issue published online: 18 JAN 2012
- Article first published online: 20 SEP 2011
- Accepted 5 March 2011, First published online 20 September 2011
- Adult nutrition;
- life table;
- nutritional requirements;
- 1The importance of nutrients consumed by adults differs among lepidopteran species. Knowledge of adult nutritional requirements is particularly useful when adopting biological control strategies that involve the use of flowering plants to improve the effectiveness of natural enemies. This is because nectar may also serve as a carbohydrate source for the pest.
- 2We evaluated the effect of different sources and concentrations of carbohydrate consumed by adults on the performance and fitness of the wheat armyworm Pseudaletia sequax Franclemont, which is an important pest of cereal crops.
- 3The consumption of carbohydrates by the adults significantly increased the length of the oviposition period, fecundity, fertility and longevity of P. sequax. Adult nutrition also affected the daily oviposition pattern of the females.
- 4The demographic parameters estimated for each diet regime (i.e. intrinsic rate of increase, finite rate of increase and net reproductive rate) were influenced by adult nutrition. These parameters also varied according to the source and concentration of carbohydrates.
- 5The results obtained in the present study suggest that the use of perennial flowering plants to provide a food source for natural enemies can also favour the pest.