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Iris Borer |
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| Click on the pictures for larger view. | Click on the pictures for larger view. | ||
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Healthy and damaged iris plants. Leaf fans with yellow leaves on right indicate damage MAY be present. |  |
Pink iris borer caterpillar is exposed when heavily damaged leaf is split. |
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Close up of damaged leaf fan (cluster of 3 yellow leaves) next to healthy leaves. Note browning at base of leaf fan. Brown clumps of caterpillar excrement may also be visible. |  |
Rotted rhizome contains an iris borer. Note the brown head and creamy colored body. |
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Peeled leaf sheath reveals pink iris borer caterpillar and tissue rot associated with feeding. |  |
Iris borer feeding on rhizome before rot settles in. |