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Multiflora rose/oriental bittersweet removal?

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rtglesener

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I have a couple acres of timber that was heavily damaged by the Derecho in 2020 and multiflora rose and oriental bittersweet have become over run in spots. What is the best solution for treating these invasives? I am able to brush cut the multiflora rose down but what should I be spraying on it to eradicate it and where would I purchase it? Any advice would be greatly appreciated.
 
I was doing some light bedtime reading the other night…. The garlon 4 label. Says u can drench the stems now. Dunno if effective or not. I did a bunch to try to see how it works.
Others….. I cut em & treated ends. Which I know that works.
The best thing - if a guy could get hands on it …. Graft rose rosette diseased plants onto MFR. it’s a virus. Wouldn’t wanna do it if u had a field full of roses near by ;). But it’s pretty darn effective. Takes a few years but could decimate a farm of this plague. I wiped MFR off the landscape on farm in Se iowa. Lot less work. Different tactic using biological solutions & those interested could get information & seek some expertise on it.
 
Sligh1 said:
The garlon 4 label. Says u can drench the stems now. Dunno if effective or not.
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Def effective. That's basically the same as a basal bark application on a tree. It just takes more herbicide than mowing or fire first.

What I see alot of is they get so big and thick and nasty that you cant even get to them without mowing or burning them first. If smaller, can def skip that step.
 
I recently did another round of research on this issue and landed on basal bark spraying as the most effective/efficient method for eliminating both MFR and honeysuckle. I have personally used pulling, cut and spray, and foliar spraying methods in the past but will likely exclusively use this method if the results are satisfactory. Here is a link if you want to "dig in" : grasslandnetwork

Last weekend I used this method and put together the recommended 20% Triclopyr (Garlon 4)/80% basal oil carrier mix to stem spray MFR and bush honeysuckle. [Note: my mix was 20% of Garlon 4, not 20% of the active ingredient]. I bought a birchmeier 2.5 gallon sprayer to use with this mix as it supposedly has better internal components to stand up to the basal oil carrier. I have been impressed so far and the size seems perfect.

I did find it difficult to avoid overspraying as no matter how I adjusted the tip my target stems were too small to avoid my spray mix getting to the ground. If this method works, it is much easier and efficient compared to cut and spray methods or even foliar spraying (especially if MFR or BH has large crown.) Additionally, this method is supposedly effective year round, if so, its even more appealing in my book as I don't need to be dealing with ticks or pressuring the land nearer hunting season.

I will report back to IW the results of my spraying and more information if I get a good kill and don't have too much collateral damage. It is also worth mentioning that the costs of the herbicide, basal carrier, and sprayer varied wildly so its worth spending some time locating the best price.
 
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The latest issue of then Iowa DNR magazine had an article on controlling oriental bittersweet. I actually had not heard of it before. My farm is overrun with honeysuckle so probably no room for bittersweet. I'll have to keep an eye out for it.
 
Oriental bittersweet will grow very well amongst honeysuckle! I’ve got plenty of both in my woods! Oriental bittersweet is some nasty stuff. Get a handle on that early on if you have a chance! I’ve been fairly happy with Crossbow herbicide (triclopyr and 2,4D) for bittersweet, honeysuckle and miltifloral rose, but it’s still a never ending battle.
 
Jwest said:
Yeah don’t know yet- hopefully!


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Its been about a year now, any updates on if the cutstump and tryclopher method worked to knock out your honeysuckle?

I did about 5 acres of multiflora using basal bark technique with trycholpyr and cutstump with trycophyer this past weekend. I'm eager to see how this will work out. This was the technique outlined by my forester. If it works well I'll probably apply for more acres next winter.
 
BearCreek said:
I recently did another round of research on this issue and landed on basal bark spraying as the most effective/efficient method for eliminating both MFR and honeysuckle. I have personally used pulling, cut and spray, and foliar spraying methods in the past but will likely exclusively use this method if the results are satisfactory. Here is a link if you want to "dig in" : grasslandnetwork

Last weekend I used this method and put together the recommended 20% Triclopyr (Garlon 4)/80% basal oil carrier mix to stem spray MFR and bush honeysuckle. [Note: my mix was 20% of Garlon 4, not 20% of the active ingredient]. I bought a birchmeier 2.5 gallon sprayer to use with this mix as it supposedly has better internal components to stand up to the basal oil carrier. I have been impressed so far and the size seems perfect.

I did find it difficult to avoid overspraying as no matter how I adjusted the tip my target stems were too small to avoid my spray mix getting to the ground. If this method works, it is much easier and efficient compared to cut and spray methods or even foliar spraying (especially if MFR or BH has large crown.) Additionally, this method is supposedly effective year round, if so, its even more appealing in my book as I don't need to be dealing with ticks or pressuring the land nearer hunting season.

I will report back to IW the results of my spraying and more information if I get a good kill and don't have too much collateral damage. It is also worth mentioning that the costs of the herbicide, basal carrier, and sprayer varied wildly so its worth spending some time locating the best price.
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How did the basal bark spray with tryclopher method turn out for you? Hopefully you got a good kill on the multiflora. I did a 5 acre patch this weekend doing this exact method.
 
sep0667 said:
Its been about a year now, any updates on if the cutstump and tryclopher method worked to knock out your honeysuckle?

I did about 5 acres of multiflora using basal bark technique with trycholpyr and cutstump with trycophyer this past weekend. I'm eager to see how this will work out. This was the technique outlined by my forester. If it works well I'll probably apply for more acres next winter.
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Cut stump with triclopyr worked, but I use 50% gly/water majority of the time now.


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sep0667 said:
How did the basal bark spray with tryclopher method turn out for you? Hopefully you got a good kill on the multiflora. I did a 5 acre patch this weekend doing this exact method.
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The verdict is still out. Many of the bush honeysuckle plants leafed out after being sprayed so I think I will need to see if they leaf out again this spring before reporting the results. The MFR appeared to be toast from my observations last year. I should know in a few months whether my efforts were successful and to what extent. I will report back after leaf out.
 
BearCreek said:
The verdict is still out. Many of the bush honeysuckle plants leafed out after being sprayed so I think I will need to see if they leaf out again this spring before reporting the results. The MFR appeared to be toast from my observations last year. I should know in a few months whether my efforts were successful and to what extent. I will report back after leaf out.
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Thats great to hear on the MFR. I"m hoping I get a good kill on the 5 acres I did. I was pleasantly surprised with how much of it there was how quickly i was able to move through and spray it.

For the honeysuckle I did cutstump and then sprayed the stumps with triclopyr. My forestry plan said that just doing basal bark on honeysuckle may not be very effective with trychopyr, but cutstump it would.
 
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