Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Spinach > Discolored leaves
Spinach > Leaves > Discolored Leaves
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Spinach Leafminer
Pegomya hyoscyami
- Larvae tunnel into leaves creating mines that begin long and narrow and eventually becoming an irregularly shaped blotch area
- Mines are opaque at first and then later turn brown.
- Larvae are a carrot-shaped, whitish maggot
- Present throughout the growing season
- More information on Spinach Leafminer
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Root Rot Complex
Pythium spp., Rhizoctonia solani, Aphanomyces cochlioides
- Leaves turn yellow and eventually wilt
- Roots have dark sunken areas and few or no root hairs
- Fluffy, white to grayish brown fungal growth may be present on rotted areas of the root
- More information on Root Rot Complex
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Virus
Cucumber Mosaic Virus and Beet Curly Top
- Leaves may be mottled or have a mosaic pattern of greens and yellows
- Leaves are misshapen, usually curled and deformed
- Young leaves are affected first but eventually the whole plant becomes yellow and stunted
- More information on Virus
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Downy Mildew
Peronospora farinose f.sp. spinaciae
- Irregular yellow spots on upper leaf surface
- Fuzzy gray growth on leaf spots on the underside of the leaves
- Leaves become water soaked, turn yellow, than brown, finally black and rotten
- Disease is common in cool wet weather
- More information on Downy Mildew
