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Tag: forest entomology

Elevated view looking out over a vast forested area, with many pine trees and mixed foliage in the foreground and rolling hills in the middle distance covered in trees in varying shades of green and fall yellows, oranges, and browns. Further out, hills line the horizon in shades of bluish gray under a blue sky with wispy white clouds.
Closeup of an emerald ash borer adult on a green leaf. The insect is iridescent green with large black eyes and a long, narrow body. It faces to the left, with the length of its body visible. Its wing covers are a dark iridescent green, while its thorax and the underside of its abdomen are much lighter green, almost golden.

Dispelling Urban Myths With Science Can Save Your Ash

Two decades after the arrival of the emerald ash borer in North America, plenty of misinformation remains about how best to manage its impact. A group of experts on this pest bust several myths about emerald ash borer in a new article in the Journal of Integrated Pest Management.

Closeup of the underside of a tree leaf, held vertically, showing more than a dozen small greenish-black caterpillars gathered closely together as they eat away at the leaf.

Much Ado About Nothing? End-of-Summer Defoliation Heats Up

While their damage may be unsightly, many common caterpillar species that emerge in late summer to munch on tree leaves are generally not a significant threat to tree health. A new guide in the Journal of Integrated Pest Management takes a closer look at these late-season defoliators and offers tips for management.

Closeup of a elm zigzag sawfly larva, light green and slightly translucent in color, feeding on a green leaf. The larva has eaten a gap into the leaf from the edge that is roughly the shape of the larva but wider. The leaf and sawfly are photographed against a white background.

Here We Go Again: Meet the Elm Zigzag Sawfly, Another Non-Native Forest Pest

The elm zigzag sawfly (Aproceros leucopoda) is now established in several places in North America. This non-native forest pest can be a threat to elm species and hybrids and is capable of large defoliation events. Will it turn into a full-blown invasive species, or simply co-exist with native herbivores in natural and urban forests? At this point, we don't know. A new review highlights elm zigzag sawfly biology, ecology, and management strategies in the U.S.