P&PDL Picture of the Week for
October 12, 2009

Spotty Squash Leaves

Rosie Lerner, Extension Consumer Horticulturalist, Department of Horticulture & Landscape Architecture, Purdue University

What's wrong with this squash foliage? There are greyish white blotches all over the leaves? Notice that the blotches may at first glance seem random, but they appear uniformly along veins and on pretty much every vein on every leaf. This spotty variegation is normal for some types of squash, particularly summer squash varieties.

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Squash foliage

Squash foliage

Purdue Plant & Pest Diagnostic Lab Purdue Cooperative Extension Service