Seasonal Abundance of Synanthedon pictipes and S. exitiosa in North Central Florida 12

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Abstract
The number of lesser peachtree borers, Synanthedon pictipes (Grote and Robinson), captured in 1976 in north central Florida in sticky traps baited with ( E,Z )-3, 13-octadecadien-1-ol acetate increased from 0 in Jan. to ca. 120/trap per week in Feb. and Mar. and remained high and stable through Oct. Populations declined rapidly in Nov. In Jan. 1977, the temperature, which was ca. 2° lower than normal, probably caused the 1st flight of S. pictipes males in the peach and nectarine orchards and woods to be later than in 1975 and 1976; however, populations after Feb. 1977 were comparable to populations in 1975 and 1976. During Apr.–Aug. 1975 low numbers of peachtree borers, Synanthedon (= Sanninoidea ) exitiosa (Say) (0–6/trap per week) were taken in traps baited with ( Z,Z )-3,13-octadecadien-1-ol acetate. In 1976 and 1977, the 1st moths were collected during Apr. and May and peak populations occurred during Sept. and Oct.

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