Hoping for some advice:used RoundUp (2% glyo) on a couple of patches of garlic mustard 8 days ago. Very, very little impact. Should I use a stronger (higher) concentration? If so, how concentrated? Thanks for any words of wisdom.

Views: 220

Reply to This

Replies to This Discussion

Hi Bill:

First, 8 days may not be enough time to observe a response.  I'm not sure, but some other species with foliar treatment require up to14 or more days.  A quick search on the internet suggests that a 2% active ingredient with surfactant is a suitable control treatment.  If the plants aren't controlled, (give the treatment 21 days to see if it takes), another treatment is possible before the plants begin to flower.

From you question, there isn't enough information to know exactly which formulation of Roundup you are using.  In NY, the target species must be listed on the label, or the label must VERY generally stipulate something like "these and other types of brushy species."

Here is a link to the 2(ee) that allows the use of "Roundup Pro" herbicide on garlic mustard.  http://pmep.cce.cornell.edu/profiles/herb-growthreg/fatty-alcohol-m...    The 2(ee) label says to mix at 1 to 3% (1.33 to 4 fluid ounces of Roundup Pro into one gallon of water).  Your solution of 2% active ingredient seems to be in the range.

Here is the main label for Roundup Pro

Here is the link to search for other labels that might be registered for control of garlic mustard, but I suspect that only Roundup Pro is labeled for use in NY since that has a 2(ee), although a different product (e.g., trichlopyr) might be labeled.  http://pims.psur.cornell.edu/


Thank you, Peter.



I agree with Pete - wait and you may find you were successful.  In the future you may want to consider an late autumn treatment for garlic mustard.  You can treat it then without harming other non-target plants.  Also, in the spring the 2nd year garlic mustard plants bolt, flower and produce seed rather quickly, so timing your treatment may be tougher.




How long do brush cutter blades work?

Started by Joanne Vaughn in Woodlot Management on Monday. 0 Replies

I dunno maybe it's because time flies when it's multiflora rose and buckthorns that are getting whacked. It seems that these blades are needing retirement after 8 or so hours.   Is this typical for this type of material. WIde range of material but…Continue

Tags: cutter, brush

Nitrogen fixing bacteria for Alder trees

Started by Joanne Vaughn in Woodlot Management. Last reply by Joanne Vaughn May 22. 7 Replies

I am thinking of starting some alder trees from seed for planting into an area that does not and has not hosted alders.  How can I gain the nitrogen fixing bacteria for inoculation of the roots ?  Continue

Seeking advice on controlling oriental bittersweet

Started by Kristen Whitbeck in Woodlot Management. Last reply by Lew Ward Apr 15. 2 Replies

A student in my silviculture class is seeking relayed the scenario below. If anyone has any tips or tricks I will gladly pass them along. Thanks in advance!"Oriental bittersweet is choking out my mature white pine trees and my mature apple trees.…Continue

Tags: bittersweet, Oriental

Are Gall's a reason to cull Hickory trees?

Started by Thomas Wilson in Forest Health. Last reply by Ron Goodger Apr 7. 8 Replies

I'll take a photo, but in the meantime....I have a lot of bitternut hickory and some shagbark as well.  I haven't yet noticed any on the shagbark, but about half of the bitternut have gall's.  They get up to about 3 inches in diameter.  Some tree's…Continue

Removal of grass around seedlings in pasture

Started by Joanne Vaughn in Woodlot Management. Last reply by Peter Smallidge Mar 19. 11 Replies

Even after the timely discussion of "green lie" this week, I am still unsure of the best method to eliminate grassy vegetation around the pine, cedar and oak seedlings we are putting in this spring. I feel this is very important because we lost a…Continue

Saving Trees With Tree-Eating Mushrooms

Started by Lew Ward in Forest Health Feb 27. 0 Replies

Saving Trees With Tree-Eating MushroomsControl of Amellaria Shoe-string Rot Fungushttps://youtu.be/FPeBYnGwo4YContinue

Electric Fencing

Started by Carl DuPoldt in Agroforestry Jan 21. 0 Replies

Electric Deer Fence WorkshopLuke Freeman hosted a workshop at the incubator farm in Fayetteville, AR to demonstrate the use of the solar-powered electric deer fence. Luke built the fence with help from Extension specialist Kenny Simon and County…Continue

Beech control with triclopyr versus glyphosate

Started by Peter Smallidge in Woodlot Management. Last reply by Joanne Vaughn Nov 20, 2019. 3 Replies

[I'm pasting from a recent email thread]Question - I'm working on a couple beech regen and mid story control projects.   I have been using Garlon 4 in oil.   Works good, but sometimes I want it to move through the roots and the Garlon doesn't do…Continue



© 2020   Created by Peter Smallidge.   Powered by

Badges  |  Report an Issue  |  Terms of Service