B-Vitamin Supplements Required for Soy Flour-Wheat Germ Diet Used in Rearing Tobacco Budworms1, 2

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Abstract
Although no definitive studies have been made on the quantitative or qualitative requirements of the tobacco budworm, Heliothis virescens (F.), for B vitamins, most insects require biotin, B12, folic acid, nicotinic acid, pantothenic acid, pyridoxine, riboflavin, and thiamine as essential nutrients (House 1965). One goal in the development of the soy flour-wheat germ diet was the reduction of costs in large-scale rearing of the tobacco budworm. Since a high quality vacuum-packed wheat germ containing many of the essential B vitamins was incorporated into this diet, we determined if the Bvitamin supplement could be reduced, quantitatively and qualitatively, to reduce further the costs of rearing the tobacco budworm.

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