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Title: Effects of chemically contaminated sewage sludge on an aphid population

Journal Article · · Ecology; (United States)
DOI:https://doi.org/10.2307/1939098· OSTI ID:6711621

Survival and fecundity of green peach aphids, Myzus persicae, were markedly reduced when they were fed on collard plants grown in pots of soil treated with chemically contaminated sewage sludge, as compared to populations on potted plants grown in uncontaminated sludge or on fertilized soil (control). Calculated demographic parameters differed significantly between the contaminated sludge and uncontaminated sludge populations and between the contaminated sludge and control populations. No significant differences were detected between the uncontaminated sludge and control populations. The ecological effects on the aphids suggest that plant uptake and translocation of chemicals from the contaminated sludge affected aphid fitness through direct toxicity and/or reduced nutritional value of the plant. These results indicate that phytophagous insects may be affected by chemical contaminants in sewage sludge used in agriculture.

Research Organization:
Cornell Univ., Ithaca, NY
OSTI ID:
6711621
Journal Information:
Ecology; (United States), Vol. 67:6
Country of Publication:
United States
Language:
English