[MAIPC] herbicide travel distance in Japanese honeysuckle runners??

Wed Apr 14 07:50:49 PDT 2021

She got the honeysuckle!

[image: image.png]

On Wed, Apr 14, 2021 at 10:29 AM Ruth Douglas <cvilleruth at gmail.com> wrote:

> Marc, is it correct to say that J. honeysuckle won't bloom (and make
> seeds) unless it it climbing?
>
> Ruth Douglas
>
> On Wed, Apr 14, 2021 at 10:05 AM Marc Imlay <ialm at erols.com> wrote:
>
>> It is critical to remove the vines of Japanese honeysuckle going high up
>> the trees. Deer do not climb up the trees, of course. Deer are now under
>> control in my local park and the Japanese honeysuckle came back in large
>> amounts, but only where we did not complete the removal of the vines up the
>> trees.
>>
>>
>>
>> Marc imlay
>>
>> Maryland Sierra Natural Places Committee.
>>
>>
>>
>> *From:* MAIPC <maipc-bounces at lists.maipc.org> *On Behalf Of *Nathan
>> Hartshorne
>> *Sent:* Tuesday, April 13, 2021 1:06 PM
>> *To:* Hamersky Business <william at skyhammer.com>
>> *Cc:* MAIPC Listserve (maipc at lists.maipc.org) <maipc at lists.maipc.org>
>> *Subject:* Re: [MAIPC] herbicide travel distance in Japanese honeysuckle
>> runners??
>>
>>
>>
>> I'm never one to say don't control invasives, but it is worth pointing
>> out that deer often provide a lot of control of japanese honeysuckle,
>> especially when they are overpopulated, which is pretty common.  So
>> depending on the browse you see, you can even focus on other species.  One
>> big drawback of deer fences for restoration projects is that I would then
>> have to deal with a lot of honeysuckle climbing up the baby trees.
>> Obviously the control the deer provide isn't perfect, so it's good to do
>> your sprays anyways, but it's rare when we can enjoy deer doing something
>> so good, so I like to bring it up.
>>
>>
>>
>> On Tue, Apr 13, 2021 at 12:18 PM Hamersky Business <william at skyhammer.com>
>> wrote:
>>
>> Thanks for the speedy replies everyone!
>>
>>
>>
>> I was using 2-3% glyphosate.
>>
>>
>>
>> If it matters, I have the option of Candor or 3-D to use on these guys.
>>
>>
>>
>>
>>
>> William Hamersky
>> Skyhammer
>> 470 Taylors Gap Rd
>> Charlottesville, VA  22903
>>
>> cel:  415. 516. 2560
>>
>> william at skyhammer.com
>>
>> “The Ash, having fibres tenacious and strong,
>> Teaches me firm resistance, to battle with wrong."
>>       Helen O. Hoyt
>>
>>
>>
>> On Apr 13, 2021, at 7:36 AM, Mark Frey <runcator at gmail.com> wrote:
>>
>>
>>
>> William
>>
>>
>>
>> It really depends heavily on the herbicide used. Some herbicides travel
>> in roots and some don't. Some herbicides travel far in soils and some
>> don't. I don't know of research applicable to runners in particular but
>> there are certainly many research projects on efficacy of herbicide X on
>> species Y.
>>
>>
>>
>> I just did a quick search in Google Scholar and found a few old resources
>> for this species in particular:
>>
>> Regehr, D. L., & Frey, D. R. (1988). Selective control of Japanese
>> honeysuckle (Lonicera japonica). Weed Technology, 139-143.
>>
>> Evans, J. E. (1984). Japanese honeysuckle (Lonicera japonica): a
>> literature review of management practices. *Natural Areas Journal*, 4-10.
>>
>> Nuzzo, V. (1997). Element stewardship abstract for Lonicera japonica. *Nature
>> Conservancy, Arlington, VA*.
>> <https://www.invasive.org/gist/esadocs/documnts/lonijap.pdf>
>>
>>
>>
>> The Element Stewardship Abstracts are usually very useful for management.
>> These documents were being produced back when TNC had a robust invasive
>> species program and I have found them to be very useful for decades.
>> Obviously, new research is not captured in these documents and some of the
>> chemicals outlined in them and not ones many natural area managers would
>> like to use if they could be avoided. But, they are a good place to start.
>>
>>
>>
>> Mark
>>
>>
>>
>> On Mon, Apr 12, 2021 at 10:00 PM Hamersky Business <william at skyhammer.com>
>> wrote:
>>
>> Hi All,
>>
>> New to the MAIPC list mail, but have been reducing invasives on my
>> property for the 6 years I’ve lived in Virginia, and also belong to Blue
>> Ridge PRISM.
>>
>>
>>
>> I’ve been foliar spraying young J honeysuckle sprouts on the farm for a
>> few days now and was wondering if anyone has info or knows of research on
>> “just how far” the herbicide can travel along the runners before it is no
>> longer effective? I’m guessing you all know that you can pull up one young
>> sprout and have 3, 4, 5, or more runners attached to it, many with other
>> “sproutlets” attached that will eventually root and create independent
>> plants.  Incidentally, when I did occasionally pull up a sprout attached
>> with runners, often their small “siblings" were invisible under the leaf
>> litter.
>>
>>
>>
>> So my question is: is there any research out there showing the efficacy
>> of herbicide treatment on invasive runners? Is it worthwhile to herbicide
>> treat these groups of plants, or just keep pulling and pulling (exposing
>> lots of bare soil in the meantime and who knows how many other
>> weed/invasive seeds!) and see how far I can go… hopefully not to the next
>> county.
>>
>>
>>
>> Thanks so much for any help/input/direction!
>>
>>
>>
>> William Hamersky
>> Skyhammer
>> 470 Taylors Gap Rd
>> Charlottesville, VA  22903
>>
>> cel:  415. 516. 2560
>>
>> william at skyhammer.com
>>
>> “The Ash, having fibres tenacious and strong,
>> Teaches me firm resistance, to battle with wrong."
>>       Helen O. Hoyt
>>
>>
>>
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