English Ivy -- Spring is the best time to control this tough weed
English ivy (Hedera helix) creates a dense ground cover with attractive dark green foliage. But, left unchecked this introduced …
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NC State Extension, NC State University
Tree of Heaven Control Guidelines
There’s a lot of interest in controlling tree of heaven. Art Gover at Penn State conducted numerous trials on …
New Publication - Weed Control in Christmas Trees
A new publication on weed management in Christmas trees by Dr. Saha at Michigan State is available. This publication provides …
New Weed Identification Book Now Available
The newly revised Weeds of the Northeast 2nd edition is now available. WNE 2nd ed info slide 1 page …
Mugwort Seedlings Are Emerging (Yes, Seedlings!)
Mugwort plants spread by rhizomes. At least that’s what I was taught. But mugwort can, occasionally, produce viable seeds. …
Common Ragweed - a Challenging Weed to Control in Fraser Fir Production
Common ragweed is (as the name suggests) common in most cropping systems. Control strategies include a combination of preemergence …
What Is That Weed? There's an App for That Too!
There are several mobile apps that are very useful in plant identification. These image-based identification tools have improved dramatically …
When Forsythia Blooms, Get Ready for Spring Germinating Summer Annual Weeds.
Spring flowering plants like forsythia send an undeniable message that the temperatures are getting warm enough for plants to …
Have You Seen Tropical Spiderwort?
Tropical spiderwort (Commelina benghalensis), a noxious weed, has been found in several landscape beds in Raleigh. See a fact …
What’s That Pretty Weed? Ageratum
Ageratum conyzoides (tropic ageratum or billygoat weed) is a South American species that is now a common weed in …
Have You Seen Thickhead in Your Garden?
No, I’m not talking about your brother-in-law. Thickhead or redflower ragleaf (Crassocephalum crepidioides) is an introduced weed that I’m …
Surflan (Oryzalin) -- Limited Supplies and Uncertain Future?
Supplies of Surflan are limited. I cannot independently confirm the following but this is what I was told by …