Environmental Entomology (1982) 11, 463-466

Joseph E. Weaver, Linda Butler and James W. Amrine Jr. (1982)
Effects of erythrosin B on hemocytes of the American cockroach
Environmental Entomology 11 (2), 463-466
Abstract: Changes in levels of hemocytes occurred in the American cockroach, Periplaneta americana (L.) (Orthoptera: Blattidae), treated with the xanthene dye erythrosin B. Light-exposed, dye-injected roaches showed diminishing numbers of hemocytes at dosages from 0.068 and 0.244 mg of dye/g of body weight, resulting in reductions of nearly 11 and 40%, respectively; at an intermediate dosage, the reduction was ca. 26%. Light-exposed, dye-fed roaches also tended to have fewer hemocytes than untreated controls. Roaches held in darkness and either dye-fed or dye-injected tended to have higher levels of hemocytes in all cases except at the highest injected dose of 0.244 mg; at this dose there was a significant reduction of nearly 25%.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Periplaneta americana