Photo:Suncore |
Colorado Master Gardener Volunteers gardening and blogging in Jefferson County Colorado. We work at the CSU Extension Office at the Jefferson County Fairgrounds. Call 303-271-6620 or e-mail your questions to mastergardener@jeffco.us
Photo:Suncore |
Graphic: Phys Org |
I’ve always loved the smell of a freshly mowed lawn. Little did I know that this smell is produced by the blades of grass signaling distress from being injured. Research has shown that plants emit volatile organic compounds (VOCs) into the atmosphere upon mechanical damages or insect attacks. Undamaged neighboring plants sense the released VOCs as danger cues to activate defense responses against upcoming threats.