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...
Greening: Green outer bulb scales
Disorder Symptoms Formation of chlorophyll in the outer scales due to sunlight, which results in the scales turning green. Causes...
Greening: Green outer bulb scales
Disorder Symptoms Sunlight causes the formation of chlorophyll in the outer scales, which results in the scales turning green. Causes...
Splitting and doubling of bulbs : Cracked and splitted bulb
Disorder Symptoms The symptoms are similar to those of late or excess applications of nitrogen. The basal plate of the onion bursts and...