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Winnipeg Free Press - PRINT EDITION
Trees in need of Tanglefoot now
If you haven't already tackled the Tanglefoot this fall, the city and the non-profit Trees Winnipeg have sent out a reminder to band your trees as soon as possible.
Banding tree trunks with sticky Tanglefoot before first frost in September reduces cankerworm infestations, which cause defoliation in spring. Elm, ash, basswood, cherry and apple trees should be banded.
In the fall and spring each year, cankerworm moths emerge from the soil around the drip line of deciduous trees. The females crawl up the tree trunk to mate and lay eggs in the upper tree.
Tanglefoot bands trap the females so they can't lay eggs that produce leaf-munching caterpillars in the spring.
In late winter or by March 15, check your bands, clean off debris and apply additional Tanglefoot to protect the tree from female moths that emerge in the spring.
Take the bands off by May 15. A good rule of thumb is to apply bands in early September and take them off on the May long weekend, Trees Winnipeg says.
Bands that are left on trees over the summer can cause tree rot and encourage insect infestations.
Republished from the Winnipeg Free Press print edition September 11, 2010 B3
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