Abstract
In apple orchards in Ontario, Quebec, and Nova Scotia yellow Sectar Pull-down traps prebaited with a mixture of HyCase protein hydrolysate, ammonium acetate, and adhesive trapped significantly more Rhagoletis pomonella (Walsh) adults than did Sectar 1 yellow traps prebaited as before or Pherocon™ ICPY baited with a solution of soy hydrolysate and ammonium acetate. The largest number of flies was caught with Sectar Pull-down traps, and 1st capture was significantly earlier than with the others. Nontarget insects, of which ca. 95% were Diptera, accounted for ca. 70, 25, and 5% of all captures on Sectar Pull-down, Pherocon, and Sectar 1 traps, respectively. The use of prebaited yellow traps of the Pull-down design, obtained from Zoecon Corp., to time 1st spray and later applications resulted in fewer sprays than are presently recommended in orchards with low or moderate apple maggot populations.
Published Version
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