SEASONAL BIOLOGY AND CONTROL OF THE DOGWOOD BORER, SYNANTHEDON SCITULA (LEPIDOPTERA: SESIIDAE) ON CLONAL APPLE ROOTSTOCKS IN NEW YORK

@inproceedings{Riedl1985SEASONALBA,
  title={SEASONAL BIOLOGY AND CONTROL OF THE DOGWOOD BORER, SYNANTHEDON SCITULA (LEPIDOPTERA: SESIIDAE) ON CLONAL APPLE ROOTSTOCKS IN NEW YORK},
  author={Helmut Riedl and R. W. Weires and Allen A. Seaman and Stephen A. Hoying},
  year={1985}
}
The dogwood borer, Synanthedon scitula (Harris), is a relatively new pest problem on apples. Larvae feed principally in burr knots on the above-ground portion of clonal rootstocks. According to a survey of 33 orchards on dwarf or semidwarf apple root-stocks, about 70% of the trees had burr knots. The tendency to develop burr knots was similar among the rootstocks examined in this survey. The proportion of trees infested with dogwood borer in an orchard ranged from 0 to 100% and averaged 30… CONTINUE READING

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