Abstract
The insect and mite populations in two neighboring blocks of apple trees in u southern New Jersey orchard were studied to determine the nature of the populations where a ryania- glyodin sprayprol program was used to eliminate certain complications associated with chlorinated hydrocarbon insecticides. Records of spider mite numbers and collections of predaceous arthropods were taken at weekly intervals. At the end of the season injury to the fruit from codling moth ( Carpocapsa porno- !leila (L.)) and plum curculio ( Conotrachelus nenuphar (Hbst.)) Was determined. The data indicated that a glyodin-ryania schedule can provide acceptable codling-moth control together with satisfactory control of phytophagous mites.
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