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Lab 9: Leaf miners, twig leaf and trunk feeders, borers (I)
Picture Sheet 2 of 7 |
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Mine cause by the hawthorn leaf mining sawfly. ( Held int the light). |  |
Injury to deciduous tree caused by periodical cicada during an outbreak. Outbreaks occur every 13-17 years. See Extension bulletin link below. |
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Inkberry holly leaf mine ( blotch type) |  |
Periodical cicada. Note the red veins and eyes. Annual or dog day cicadas are green, |
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Black locust leaf mines and adult black locust leaf miner. Largely a problem in southern Indiana. Unlike other miners already covered these miners feed as adults on leaves for long periods. . |
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Egg laying scar caused by periodical cicada. |
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