Milton J. Friedman - San Francisco CA Susan E. Langston - Saratoga CA Sonia Pollitt - San Bruno CA
Assignee:
Biosys Corporation - Palo Alto CA
International Classification:
A01K 4500 A01K 67033 C12N 500
US Classification:
4352403
Abstract:
Entomogenous nematodes can be used as biological insecticides for the control of certain pests. The present invention provides a large-scale production in liquid culture of these entomogenous nematodes using an improved liquid culture medium. The medium uses an emulsifier to provide a well homogenized growth medium. The invention also provides a method of cultivating entomogenous nematodes on a commercial scale, in liquid culture, in fermenters by controlling the agitation rate as a function of oxygen demand.