gypsy moth

Gypsy Moth Status Report -- 1994

The gypsy moth situation in Iowa in 1994 was another good-news-bad-news story.

Good news. The good news is that 10 very small infestations (1 to 10 acres each) discovered in 1992 and sprayed with Bt in 1993 had no caterpillar or moth captures in 1994. This adds to the Iowa Department of Agriculture and Land Stewardship string of successful eradications of the small, isolated infestations of gypsy moth that result from transport into the state on vehicles and nursery stock.

Current Gypsy Moth Situation in Iowa

Iowa was very fortunate for over two decades in that we had no substantial establishment of gypsy moth in spite of the ease with which this pest migrates on cars, trucks, buses, recreational vehicles and interstate merchandise shipments. It at first appeared our luck had changed with a large introduction of gypsy moth egg masses on infested nursery stock last spring, but, as the following update, based on information provided by Dr. Catherine Thompson, an Entomologist with the Iowa Department of Agriculture and Land Stewardship indicates, the situation is not as bad as it could have been.

Gypsy Moth Reminder

May and June are the months when the gypsy moth caterpillars would eat the foliage from your trees, IF they are present. Now is the time to watch trees for gypsy moth presence.

According to the Iowa Department of Agriculture and Land Stewardship, we still have knowledge of only two infestations, one in Long Grove and the other in Clear Lake. Other infestations potentially exist in central Iowa as a result of last years introduction of egg masses on infested blue spruce trees, but those situations require further inspection and analysis.

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