The Nose Knows This section of a geometer moth antenna is obviously not a true nose, as we think of that organ, but these moths do use their antennae to detect odorants and other chemicals in the air.

Gypsy moth caterpillars crawl on a tree outside London, Ont., in 2020. (Travis Dolynny/CBC) When larger caterpillars are in a feeding frenzy, their "frass," or excrement, falls from above.

In Allegany and Washington counties, the damage is mainly from the half wing geometer, linden looper and fall cankerworm. The invasive spongy moth caterpillar causes similar damage but is not ...

WATCH ABOVE: Swarms of caterpillars have infested multiple species of trees in Ontario, eating massive amounts of foliage as the insects prepare to transform into an invasive species of moth. Mark ...

Throughout the summer, after hatching, caterpillars feed on the leaves of their host plants, which include oaks, cherries, and maple. By late summer, the caterpillars are large, growing up to 10 ...