Susceptiblity of crabapple cultivars to attack by the codling moth

Joan Cossentine, Harold Madsen

Abstract


A repository block of ornamental crabapples containing 87 cultivars was left unsprayed and evaluated for resistance to the codling moth, <i>Laspeyresia pomonella</i> (L.). Although there were considerable differences in susceptibility, none of the cultivars was resistant to codling moth attack. A number of trees escaped injury from the first generation, but all showed entries from the second generation in August.

Keywords


crabapple; codling moth; <i>Laspeyresia pomonella</i>

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References


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