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Population Increases of Steneotarsonemm pallidus (Banks) following Spray applications of Dimethoate
Author(s) -
Harris K. M.
Publication year - 1969
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1969.tb00477.x
Subject(s) - dimethoate , biology , mite , pesticide , predation , population , toxicology , botany , agronomy , ecology , demography , sociology
SUMMARY Field experiments on chemical control of Steneotarsonemus pallidus on Michaelmas daisies ( Aster novi‐belgii ) at Wisley in 1967 and 1968 showed that massive increases in mite populations follow single spray appl.ications of dimethoate. Published reports of similar effects on strawberries indicate that predators are adversely affected by some organophosphorus pesticides. Predators were present on Michaelmas daisies at Wisley and may have been affected by dimethoate but there may also be some biochemical or other effect on the host plant that increases mite fecunditv.