The importance of spur leaves and lime-sulphur sprays on fruit retention in three apple varieties

Llewelyn, F.W.M.

A.R. E. Malling Res. Stat, A46: 89-92


Accession: 014251677

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Comparisons were made at frequent intervals throughout the season of the proportions of flowers that remained as apples on trees which had been (1) sprayed with lime-sulphur at green cluster and pink bud, (2) left untouched, or (3) defoliated at the time of spraying. Defoliation decreased the proportion retained early in the season on Cox's Orange Pippin trees, late in the season on Worcester Pearmain, and had little effect on Laxton's Superb.