I have a large crop of poision ivy at the base of a huge live oak tree. Will this product hurt this tree?
2059137
it might kill the oak tree. I know the ortho brush b gon that you paint on oak stumps does a good job of killing the stump
2059138
I live in a literal forest of poison oak. Had a few PO trees with 8" diameter trunks. Count your blessings. Anyway. The answer is... it depends on what you do and how careful you are. If the poison oak is growing up the tree, cut the poison oak stems and apply the Ortho un-diluted to the stump/s coming from the ground. If the oak is also all around the tree and ground based, spray very carefully, but with full coverage, and be sure not to have rain in the forecast for two days after. In two days you will notice the poison oak leaves begin to wilt. Do not cut out the poison oak until it is all wilted. If it isn't or you see any new growth, reapply very carefully again and you are done. Has worked, is working now for me, in the exact same situation. Been doing this same process for over 14 years. Including around my beloved firs and redwoods. Haven't hurt or lost one yet. Be sure to wear gloves. Don't do this when the wind is up. When you are done, take a full long warm shower. Just to make sure you get any poison oak or Ortho residue off you after cutting and tromping around in the Gawd-awful stuff. Our motto here: "All poison oak must die." Or while we are killing it: "Die oak die."
2059139
In my experience it wont hurt the tree if it does not touch the leaves, in any case it would not kill a "huge live oak tree". What I would do if the PI is climbing in the tree is cut the PI vine on the tree trunk, the upper part will die, then when the lower part resprouts spray that. There will be less to spray. When you spray it once, the part sprayed will die, but may resprout, Just respray when the new growth appears.
2058256
I used it last summer on my flowering pear tree that had a root exposed which kept sprouting. It has totally fixed the problem. The tree was not hurt and the root did not have sprouts popping up daily.
1138234
No, it does not harm trees or lawns. My husband has used this product for many years. It is the only product that works for us.
1963962
Yes, but it will probably take more than one session, although you will see results after the first spray. Also, it will kill what is above ground, but the root will still be viable.
1550987
It should be okay around established trees, but not saplings. The original use for this chemical was along fence lines, so older trees are robust enough to stand up. I would be careful about how much you use for this application. I use about a 1/2 cup in 2 gallons of water and apply at a medium spray from my hand held tank. Diuron is non-soluble, so you will need to really shake it up to suspend it in water.
763084
It didn't hurt any other plants but it didn't get rid of my weeds. I used it on my grass and near flowers and trees it might do well in a small area.
2059983
I'm not for sure, I used it on my pin oaks,water oaks , saw tooth oaks and it worked pretty good
155206
No, I do not think it is strong enough to stand up to deer rubbing their antlers against the tree. It is nice for general landscaping needs, but I think you would be disappointed in it for your needs.
33443
It won't hurt the lemon tree. I don't know if it will kill the mold, but if its caused by insects then it will work.
1100374
I would think it would work very well on oak trees. I have used it on crape myrtle trees and deciduous holly trees. It was recommended by Walter Reeves, our Southern Garden expert, in his column for all kinds of tree and shrub sprouts. It might not be permanent however, and might need to be repeated yearly.
1100899
I am sorry not to be able to give an answer for you, Donnay. I have only used this on my hibiscus tree.
301760
Yes, although I've only used a backpack sprayer. I've experienced excellent results with this product on a recently cleaned out tree line that was over grown with ivy poison, shumack and sassafras trees.
1165677
While I can't say for sure, I would think it might (probably would?) I personally wouldn't want to take a chance - test a spot first maybe. (I use it on Poison oak and brush [double strength])
278300
No, it will not harm the tree, just do not get spray on the tree, the bark or exposed/ surface roots.
1385840
I'm sure it would. I used mine on Brazilian Teak which I think is probably even harder than oak and had no problems with it.
553587
Hi Victoria, I'm not familiar with English Ivy.. but here in California we have poison ivy.. vines are very hard to get rid of for the most part.. If you take a baby food jar filled with roundup then immerse the ivy into the jar that should do the job.. You need to leave the ivy in the (roundup/baby food jar) for a few days, the vine will take the roundup into the root system. If you have pets or are worried about other vegetation in the surrounding area, place a freezer bag over the baby food jar and vine then secure it tightly with a rubber band.. Remember to wear gloves and wash your hands if you get any roundup on your skin.. I hope this Helps.. -Dale Hi Victoria, I'm not familiar with English Ivy.. but here in California we have poison ivy.. vines are very hard to get rid of for the most part.. If you take a baby food jar filled with roundup then immerse the ivy into the jar that should do the job.. You need to leave the ivy in the (roundup/baby food jar) for a few days, the vine will take the roundup into the root system. If you have pets or are worried about other vegetation in the surrounding area, place a freezer bag over the baby food jar and vine then secure it tightly with a rubber band.. Remember to wear gloves and wash your... » Read More Hi Victoria, I'm not familiar with English Ivy.. but here in California we have poison ivy.. vines are very hard to get rid of for the most part.. If you take a baby food jar filled with roundup then immerse the ivy into the jar that should do the job.. You need to leave the ivy in the (roundup/baby food jar) for a few days, the vine will take the roundup into the root system. If you have pets or are worried about other vegetation in the surrounding area, place a freezer bag over the baby food jar and vine then secure it tightly with a rubber band.. Remember to wear gloves and wash your hands if you get any roundup on your skin.. I hope this Helps.. -Dale « Show Less
1249815
Not really, this product is designed to kill greenery. I have sometimes sprayed around trees accidently and nothing happened to the trees or roots