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Light Intensity Effects on Lesion Size Caused by Phytophthora infestans on Potato Leaves. Jorge I. Victoria, Graduate Student, Dept. of Plant Pathology, Cornell University, Ithaca, N.Y. 14850; H. David Thurston, Professor, Dept. of Plant Pathology, Cornell University, Ithaca, N.Y. 14850. Phytopathology 64:753-754. DOI: 10.1094/Phyto-64-753.

Leaves of potato plants grown under different light intensities had significant variations in lesion size caused by P. infestans. Lesions were larger on plants grown at lower light intensities than on plants grown at higher light intensities.