MAPLE PETIOLE BORER
Maple leaves falling on the ground? If the petioles are discolored or cut your have a little sawfly called the MAPLE PETIOLE BORER. This does not affect the tree health, but can make the lawn look messy. For more information see Extension Bulleting A2699 at http://www1.uwex.edu/ces/pubs/pdf/A2699.PDF.
JUNE BEETLES
If you are finding your oak or birch leaves seem to be disappearing and you cannot find insects during the day, look for June beetles at night. We have had a number of reports of clocks of beetles chomping at the leaves after dusk. If it getting out of hand Sevin, permethrin or orthene will control them. They are usually active until mid June.
Polyphemus Adult
Polyphemus Cocoon
POLYPHEMUS MOTH
The adults of the Wild Silk Worms like the Polyphemus Moth are now emerging. They do not eat, in fact do not even have functional mouthparts. They will only be active for 1-4 days and need to find a mate and lay eggs quickly before the bats or birds find them. These are among the most impressive insects we have in the state.
Asian Longhorned Beetle
Pine Sawyers
ASIAN LONGHORNED BEETLE
ASIAN LONGHORNED BEETLE look alikes. Adult Pine sawyer beetles are often confused with the maple eating insect from Chicago. The Asian Longhorned has distinct white "poka-dots" while the sawyers have less well-defined markings. Pine Sawyers attack dead and conifers and are often attracted to lights. For more help on identifiying them see http://www.na.fs.fed.us/spfo/alb/ident_reporting/identifying.htm. (Thanks to Ken Barnet, UWEX-Marathon Co.)
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