News

Downy mildew disease confirmed on cukes in Lenawee County: Five counties have spores in air samples

Published on June 24, 2025
All Michigan cucumber and melon growers should spray effective downy mildew fungicides immediately.
Safeguard against spreading the invasive box tree moth

Published on June 23, 2025
Have you noticed heavy box tree moth damage on your boxwoods this season? Here's what you need to know about safely disposing of infested plants.
First 2025 cucurbit downy mildew spores identified in three Michigan counties

Published on June 12, 2025
Growers are urged to scout cucumbers and melons and check the Downy Mildew News website for updates.
Compliance requirements for approved Japanese beetle-free greenhouses and screenhouses 

Published on June 10, 2025
Nurseries and greenhouses must comply with the certification guidelines in the National Japanese Beetle Harmonization Plan to ship plants into western states uninfested with Japanese beetle.
Drive-by botany: Eastern redbud and garlic mustard

Published on May 19, 2025
Profiles of common Michigan roadside flora in early May 2025.
Box tree moth quarantine covers 13 southern Michigan counties

Published on May 15, 2025
The regulated area for box tree moth includes 13 southeast and central Michigan counties: Clinton, Eaton, Ingham, Lapeer, Livingston, Oakland, Jackson, Washtenaw, Wayne, Lenawee, Monroe, Macomb and St. Clair.
Thrips parvispinus management in Michigan greenhouses: Insights from the latest research

Published on May 15, 2025
Thrips parvispinus have been popping up in Michigan greenhouses over the past few years. Here’s a look at the latest research on managing this invasive pest – just in case it shows up in your greenhouse.
Consider maintenance when choosing plants this spring

Published on May 13, 2025
Heavy-feeding plants such as petunia require more maintenance from home gardeners than other species to ensure season-long color.
Updated box tree moth quarantine and compliance agreement for shipping out of the quarantine counties

Published on May 8, 2025
The updated compliance agreement allows businesses seven days longer to apply insecticide treatments to comply with Michigan’s box tree moth interior quarantine.
MDARD in-person core review and testing offered in Oakland County on May 28

Published on May 1, 2025
Participants will review the core manual and take the pesticide applicator test. Private and commercial core, fumigation and aerial standard tests will be available. Participants can receive four core RUP credits.