* Kogan M, Helm CG, Kogan J, Brewer E (1989) Distribution and economic importance of Heliothis virescens and Heliothis zea in North, Central, and South America and of their natural enemies and host plants. InProceedings of the Workshop on Biological Control of Heliothis: Increasing the Effectiveness of Natural Enemies, New Delhi, India, 11-15 November 1985 1989. New Delhi, India: Office of International Cooperation & Development, USDA. |
* Manzanilla-López RH, Costilla MA, Doucet M, Inserra RN, Lehman PS, Cid del Prado-Vera I, Souza RM, Evans K (2002) The genus Nacobbus Thorne & Allen, 1944 (Nematoda: Pratylenchidae): systematics, distribution, biology and management. Nematropica 32, 149-226.
------- As Chenopodium nuttalliae. |