In the San Joaquin Valley, cotton aphids have become resistant to commonly used pesticides | Zendy

Elizabeth E. GraftonCardwell | Zendy; Thomas F. Leigh | Zendy; W. J. Bentley | Zendy; Peter B. Goodell | Zendy

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In the San Joaquin Valley, cotton aphids have become resistant to commonly used pesticides

Author(s) -

Elizabeth E. GraftonCardwell,

Thomas F. Leigh,

W. J. Bentley,

Peter B. Goodell

Publication year - 1992

Publication title -

california agriculture

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.472

H-Index - 25

eISSN - 2160-8091

pISSN - 0008-0845

DOI - 10.3733/ca.v046n04p4

Subject(s) - san joaquin , pesticide , spring (device) , pesticide resistance , biology , agronomy , toxicology , environmental science , engineering , mechanical engineering , soil science

Laboratory bioassays have demonstrated that cotton aphids are resistant to organophosphate pesticides in many areas Of the Sari Joaquin Valley. Many of the aphids are resistant before they reach newly emerged cotton; their resistance tends to decline at the end of the season. The best management strategy: Avoid using pesticides in spring when they are least effective and natural enemies are abundant, and use pesticides at the end of the season to prevent sticky cotton bolls.

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