Peduncle defined, [305].
Perfection, [425].
Pergolas, training vines on, [142].
Perkins, [426].
Pests in graperies, [202].
Petiole, characters of, [307].
Pholus achemon, [217].
Phosphorus, benefits from, [101].
Phylloxera, [13], [61], [205].
control of, [206].
Phylloxera vastatrix, [205].