April 8, 2011

Tagged as: winter damage, salt damage, plant health care, Plant Health, Hemlock needle miner, emerald ash borer in Illinois, BAGWORMS, Arborvitae leafminer, Woolly alder aphid

This issue contains details on many items including: bagworms, hemlock needle miner, woolly alder aphid, arborvitae leafminer, winter damage, salt damage, and emerald ash borer in Illinois

Indicator plant: Diane Hybrid Witch-Hazel (Hamamelis x intermedia 'Diane')

Feature article: What are degree days and why do we care about them anyway? by Donna Danielson

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