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New weapons in fight against gypsy moth

Article Abstract:

The gypsy moth is highly destructive to forest trees and after many attempts, scientists are making progress in controlling the hungry little pests. Researchers have found that certain chemicals in the green ash tree are harmful to the moths. Biocontrol using wasps which lay their eggs in gypsy moth caterpillars is gaining renewed interest following introduction of the wasps in the 1960s. Other biocontrol methods involve a slow-acting moth virus which can be made deadlier with a common household brightening agent.

Control, Garden pests, Gypsy moth, Gypsy moths

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Taking the sting out of nettles

Article Abstract:

The nettle, famous for the stinging, sharp fibers that cover its leaves, also serves many healing and culinary needs. Stinging nettles are part of the 1,000-species Urticaceae family and are native to Europe. For centuries nettles have been used to treat urinary problems and are useful in treating prostate problems, arthritis, and chest congestion. A rich source of vitamin C, nettles can also be served in teas, soups or as a replacement for spinach in some dishes.

Health aspects, Plants, Edible, Edible plants, Nettles

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New elms show promise

Article Abstract:

Researchers at the US National Arboretum's laboratory have developed two cultivars of elm trees that are resistant to many classic elm pests. The 'Valley Forge and 'New Harmony' were singled out after genetically analyzing thousands of trees as the elms most resistant to pests. Each handles Dutch elm disease well. The same elm research suggests that elms may not react to Dutch elm disease with a resistance mechanism, but with a tolerance strategy instead.

Management, Innovations, Elm, Dutch elm disease, Elms

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