FUNGAL LEAF SPOT appears as small,
watery ovals on the leaves. They may
develop a reddish border. This disease
saps the strength of the plant and causes
weak leaves and blooms in addition to
being unsightly. To prevent leaf spot the
garden should be kept clean. Spray with
Daconil®, Benlate®, or Zineb® 75 at 3-
week intervals.
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SCORCH is a disease of unknown origin that makes an iris extremely
sick. Generally the first apparent symptom is the brownish-yellow color of
the center leaf in the fan. If this leaf resists being pulled out and the
scorched appearance spreads to adjacent leaves, chances are that the plant
has scorch. If the scorched plant is dug, the root system will appear to have
disintegrated. Scorch occurs most often after mild winters in cold climates.
