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Spore Release in Uncinula necator. S. M. Pady, Professor of Botany, Division of Biology, Kansas State University, Manhattan 66502; J. Subbayya, Associate Professor and Head, Department of Plant Pathology, S.V. Agricultural College, Andhra Pradesh Agricultural University, Tirupati A.P., India. Phytopathology 60:1702-1703. DOI: 10.1094/Phyto-60-1702.

Conidia release in Uncinula necator on grape was studied with a Kramer-Collins spore sampler during October and November 1969 in Australia, and in India in January and February 1970. Diurnal periodicity occurred on all days with midday peaks.

Additional keywords: powdery mildew of grape.