Removal of Insect Contaminants from Peas in the Processing Plane1

Autor:	L. W. Getzin, J. Eric Halfhill
Rok vydání:	1976
Předmět:	Larva Ecology biology media_common.quotation_subject fungi Colorado potato beetle food and beverages General Medicine Insect Contamination biology.organism_classification Spodoptera praefica Pupa Horticulture Autographa californica Insect Science Botany Leptinotarsa media_common
Zdroj:	Journal of Economic Entomology. 69:647-651
ISSN:	1938-291X 0022-0493
DOI:	10.1093/jee/69.5.647
Popis:	Insects found during the normal inspection of 7213 tons of processed peas in a Pacific Northwest processing plant were retrieved and identified. The collection included a variety of species representing 6 taxonomic orders. The principal contaminants were the Colorado potato beetle, Leptinotarsa decemlineata (Say), the western yellow striped armyworm, Spodoptera praefica (Grote), and the alfalfa looper. Autographa californica (Speyer). When peas contaminated with known numbers of alfalfa looper larvae and pupae were processed in a commercial plant, less than 3% of the insects reached the inspection line. The remainder was removed during processing, primarily by air cleaners and product washers. A flotation separation method of removing lighter insects from heavier peas was developed and successfully tested in commercial operation. The addition of 4.1% NaCl to the water in vegetable product washers removed 98% of the insects, compared to only 53% without NaCl. The method provides a simple, economical, and dependable means of removing insect contaminants from peas which should enable processors to reduce their dependence upon costly prophylactic insecticide field-spray programs.
Databáze:	OpenAIRE
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