Nutritional Control of Processed Food Pests: Growth and Survival of Tribolium Confusum (Duval) on Nutritionally Imbalanced Pudding Diets
Nutritional efficiency of four dehydrated and powdered tapioca puddings for Tribolium confusimi (duVal) was assayed by studying growth, survival and fecundity of the confused flour beetle on these diets.
The common pudding inflicted about 50% mortality and caused over three-fold growth retardation in the larvae. The longevity and fecundity of the adults also were significantly reduced (P < 0.01). On the other three test puddings which contained less vitamins and more fat or carbohydrate than the common pudding, growth was even more severely retarded, and only 9% of the larvae became adults of doubtful reproductive ability. Results obtained from puddings supplemented with vitamins, or made with synthetic milk in which vitamin and fat levels were manipulated, suggest that the nutritional inadequacy of the four test puddings was mainly due to low vitamin and high fat contents.
The results demonstrate the practicality of inducing ’self-protection’ against insect pests in certain types of food products without seriously affecting their acceptability by man.
Key WordsTribolium confusum confused flour beetle insect nutrition Coleoptera diet
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- Blake C. H. and Russell H. D. (1943) Insects and other animals of interest to Quartermaster Corps. Report No. 2091, Washington Office of Scientific Research and Development, U.S. Army.Google Scholar
- Cotton R. T. and Ashby A. D. (1952) Insect pests of stored grain and seeds. In Insects: The Year Book of Agriculture, pp. 629–639. United States Department of Agriculture, Washington D.C.Google Scholar
- Fraenkel G. and Stern H. R. (1951) The nicotinic acid requirements of two insect species in relation to protein content of their diets. Archs Biochem. 30, 438–444.Google Scholar
- Long C. (1966) Biochemist’s Handbook. E. and F. N. Spon, London.Google Scholar
- Mansingh A. (1976) Physiological strategies in integrated pest management. Proc. nat. Acad. Sci. India 40, 77–95.Google Scholar
- Pradhan S. (1971) In tropics, protection research more needed than production research. Indian J. Ent. 33, 233–239.Google Scholar
- Pratt Jr. J. J., House H. L. and, Mansingh A. (1972) Insect control strategies based on nutritional principles: a prospectus. In Insect and Mites (Ed. by Rodriquez J. G.), pp. 651–668. North-Holland, Amsterdam.Google Scholar
- Smallman B. N. and Aiken T. R. (1944) Susceptibility of biscuits to insect damage. Cereal Chem. 21, 499–510.Google Scholar