100,000 Buckthorns to kill
dandy_line (Z3b N Cent Mn)
16 years ago
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terrineff
4 years agoRelated Discussions
Buckthorn
Comments (3)I've been battling the 2 invasive species of Buckthorn for several years - - Frangula alnus, Glossy or European Buckthorn, aka Rhamnus frangula - Rhamnus cathartica, Common Buckthorn Both grow in a multi-stemmed shrubby habit, but Common Buckthorn has a tendency to grow in a more tree-like form. Common Buckthorn is dioecious, so only the female plants make berries. Seedlings are relatively easy to pull, but don't even bother trying to dig out med-large plants - the roots are embedded like concrete. Even the weed wrench is challenging with anything over 1 inch diameter. I cut the stems close to the base and use a squeeze bottle with a concentrated herbicide (Glyphosate, Triclpyr, or 2-4-d). Apply herbicide immediately after cutting. If it is a large stem (2-4") is only necessary to apply herbicide in the outer edge of the cut trunk. The plants do not have to be cut down, they can be left in place to die using other methods of applying herbicide. Cut bark treatment - where the bark and cambium are girdled or cut downward in a "cup" pattern all around the stem and herbicide is applied in the cup. Also basal bark application involves spraying oil-based herbicide over the lower couple feet of stems. I've tried to eliminate the larger plants first, to prevent additional generations of seeds from being dispersed by birds. Don't have a good pic of Common Buckthorn, but here's one of Frangula alnus, Glossy Buckthorn -...See More$100,000 fine for selling worm castings
Comments (7)As I understand it the owner did get a bit flamboyant in his claims but he never said worm castings will kill insects. What he said that set the EPA off was that use of worm compost will help plants produce natural compounds that help them fight off insect invasions. We all know healthy plants have less insect problems. That's a true claim though it may be hard to prove in court but if worm castings violate laws in that regard then so does compost and a lot of other natural fertilizers and soil conditioners....See MoreBuckthorn and Honeysuckle herbicide questions
Comments (14)1) Spraying Glyphosate on leaves of buckthorn will not kill them. It does cripple the new leaf growth, but after a couple of years they will regrow normally. 2) I would not use 24d. Why spray when you can cut and paint - much more environmentally friendly and safer for you. 3) Saying that you use a certain % of Roundup does not help the reader. Roundup is available in a number of formulations (not counting the competitors) and these formulas have different strengths. the very dilute formulation that is ready for spraying is too dilute. 4) I can't comment on using glyphosate in winter, but it seems to me that this would not work once the tree has lost it's leaves. At that point it has gone dormant. I would recommend doing this in fall, up to leaf fall. 5) The strategy for a large infestation--mine is 4 acres--is to start with berry producing plants. This will be larger female plants. Berries are reported to be viable in the ground for 7 years. the sooner to stop having berries the sooner you will get rid of the Buckthorn. Once berry producers are gone, get rid of all large plants. You can also go after very small plants. I find that if the ground is wet, you can easily pull plants up to about 2 feet tall. As they get larger, the roots become too strong for hand pulling. For 3-4 ft plants, I usually wait until they are 5 feet tall - easier to handle then. Cut and paint with glyphosate in fall. You can leave cut wood on the ground. It gets brittle in one year and rots fairly quickly. I find that it does not make good firewood. Here is a link that might be useful: Garden Myths...See MoreBuckthorn killer
Comments (1)There is a buckthorn thread in the native plants forum. It's been going for years. If anyone has a good answer I'm sure they have it over there. I think once they are cut, you can paint the stub with a certain herbiside to kill them. I try to pull them when they are small, and the root still pulls out easily. But I have a few that were too big to pull, that I cut comepletely down. I still need to paint them, but it must be applied to a fresh cut, so I will have to recut before I paint them....See Moredandy_line (Z3b N Cent Mn)
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3 years agoPat & Bill Brown
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3 years agobill_g_wisconsin
3 years agoPat & Bill Brown
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