1992•UA Campus Repository (The University of Arizona)Requires access
Effect of Insecticides on Sweetpotato Whitefly Numbers and Growth of Broccoli
Michael D. Rethwisch, Charles W. McDaniel, Mary Shaw, James Theissen
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Abstract
Eleven treatments were applied for sweetpotato whitefly B- biotype control. Best control (62.4%) was evidenced by the Ambush + Thiodan treatment, which had fewest nymph numbers 8 days post treatment and had larger plant sizes (46.3%) 14 days post treatment than the untreated check. Plants in plots receiving treatments including Thiodan and/or Lorsban were also at least 20% larger than the untreated check. Fewest number of adult whiteflies two days post treatments were noted in the Thiodan + M-Pede treatment. Certain treatments increased whitefly numbers.