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Toxicity of biorational insecticides: activity against the green peach aphid, Myzus persicae (Sulzer)
Author(s) -
Edelson Jonathan V,
Duthie J,
Roberts W
Publication year - 2002
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.444
Subject(s) - myzus persicae , bioassay , aphid , biology , toxicology , pesticide , biopesticide , horticulture , botany , agronomy , ecology
The relationship between dose for each of four biorational insecticides (pyrethrins, neem extract, capsiacin extract, insecticidal soap) and mortality of the green peach aphid ( Myzus persicae ) was determined using a laboratory bioassay. These insecticides were toxic to aphids and paired mixtures of the insecticides provided synergistic activity as measured by aphid mortality under the laboratory bioassay conditions. Capsiacin extracts were found to provide low levels of mortality alone but acted synergistically in mixtures with the other insecticides and provided higher than expected levels of mortality. Activity as determined in the laboratory for each insecticide was not evident under field‐use conditions in five separate experiments. Under field conditions and using common application methods, these insecticides did not provide significant levels of control of aphids. © 2002 Society of Chemical Industry