Revising the Aster Yellows Index and Management in Wisconsin
Revising the Aster Yellows Index and Management in Wisconsin
Revising the Aster Yellows Index and Management in Wisconsin
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<strong>Aster</strong> yellows: <strong>in</strong><br />
carrot<br />
Disease <strong>in</strong>cidence:<br />
1%-15% <strong>in</strong> <strong>in</strong>tensively<br />
managed carrot fields<br />
Likely 80-100% if not<br />
managed<br />
Carrot<br />
Carrot<br />
Lettuce<br />
Variable symptoms: Above ground – leaf<br />
yellow<strong>in</strong>g <strong>and</strong> redden<strong>in</strong>g, twist<strong>in</strong>g, witches'<br />
broom<strong>in</strong>g; Below ground – stunted <strong>and</strong><br />
malformed roots, adventitious root growth<br />
Celery<br />
O<strong>the</strong>r crops affected: Lettuce, celery, cilantro,<br />
canola, parsnip, potato
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