Because the orangeworm-infested almond is not penetrable by most insecticides, a better solution to NOW infestation might be a biological control method. application of an entomophagous nematode.

This research was supported in part by a grant from the Almond Board of California. The authors thank Darlene F. Hoffmann, Biological Laboratory Technician (Micro), SEA, USDA, Stored-Product Insects Research Laboratory, Fresno, and Abdul R. Chauthani, Head, Entomological Research Dept., Nutrilite Products, Inc. for the production of nematodes used in the 1977 tests. Thanks also to the California Almond Growers Exchange for their evaluation of NOW-caused almond nutmeat damage.