Miticidal Activity of Two N-Arythioformamidines against All Development Stages of the Carmine Spider Mite
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Authors
Hull, Marilyn J.
Issue Date
1975
Type
Thesis
Language
en_US
Keywords
Alternative Title
Abstract
Two thioarylformamidines were compared as toxicants against the carmine spider mite, Tetranychus
cinnabarinus, in all stages of the life cycle. U-42558 was found to
be approximately 10 x as effective as U-42564 against ova regardless
of age at treatment. The relative toxicity of the former decreased
following eclosion and subsequent mite maturity until both compounds
were essentially equally toxic to adult female mites. Evidence is
presented to indicate that leaf dip and spray evaluations produced
similar adult mite toxicity data; however, slide dip evaluations
were markedly less effective and failed to implicate either formamidine
as being highly miticidal were compared as toxicants against the carmine spider mite, Tetranychus
cinnabarinus, in all stages of the life cycle. U-42558 was found to
be approximately 10 x as effective as U-42564 against ova regardless
of age at treatment. The relative toxicity of the former decreased
following eclosion and subsequent mite maturity until both compounds
were essentially equally toxic to adult female mites. Evidence is
presented to indicate that leaf dip and spray evaluations produced
similar adult mite toxicity data; however, slide dip evaluations
were markedly less effective and failed to implicate either formamidine
as being highly miticidal.
Description
v, 19 p.
Citation
Publisher
Kalamazoo College
License
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