Sunscald: Bleached areas of the affected bulb
Disorder Symptoms Affected areas dry and shrivel rapidly in bulb, and scales eventually become brown and necrotic. Scalded areas look...
Sunscald: Affected tissues in onion bulb
Disorder Symptoms On onion bulbs, affected tissue collapses and becomes bleached, soft and slippery. Affected areas dry and shrivel...
Translucent scale: Grayish watery appearance of inner scales
Disorder Symptoms Translucent scale typically appears after harvest and worsens after 3-4 months of bulb storage. The onion scales take...
Translucent scale: Leathery scale
Disorder Symptoms Leathery, water soaked outer scales and skins occur in the field prior to harvest. If a period of heavy rainfall...
Translucent scale
Disorder Symptoms The onion scales take on a grayish watery texture making them appear translucent. All scales can be affected, however,...
Leaf variegation (Chimera): Foliar symptoms
Disorder Symptoms Variegated tissue patterns may be mosaic or linear. Leaf tissue is variegated resulting in tissues that have a normal...
Leaf variegation (Chimera)
Disorder Symptoms The yellow to white tissue is deficient in chlorophyll and can result in abnormal or stunted plant growth when...
Leaf variegation (Chimera): Yellow leaf streaking
Disorder Symptoms Leaf tissue is variegated resulting in tissues that have a normal green color being directly adjacent to tissues that...
Herbicide injury: Leaf curling
Disorder Symptoms Systemic herbicides, those that are translocated in the plant, tend to cause a yellowing of the foliage. They may also...
Herbicide injury: Leaf lesions
Disorder Symptoms Multiple spots can result in deformed leaves as well as leaf curling. Systemic herbicides, those that are translocated...