BonideBonide Poison Oak & Ivy Killer, 32 oz Ready-to-Use Spray for Home Gardening, Fast-Acting Formula Kills the Roots

Used this last season to kill some poison ivy that survived some heavy doses of brush killer. Everything sprayed last year didn’t come back this year. Super happy with the results

This product is wonderful. It works almost immediately. No offensive odor.

I’ve used this mainly on small poison ivy sprouts, but it does kill them if used per the instructions. After liberally spraying the plant, it was wilted the next day and completely dead two or three days later. It also killed a Virginia creeper vine I sprayed it on. Only bad thing is it can be a gamble buying things like this from Amazon because my bottle had leaked some at some point during shipping. Also, either the bottle leaks while spraying or the mist can blow back on the bottle and your hand while using, so make sure to wear gloves while you use it. Other than that, the stuff actually does work.

This is an important review because the listing does not make it clear that it is a slow acting control. It took 2 weeks after application before I saw ANY affect. By the third week, there was definite wilting of the mature plants. After a month, the only thing left were the dead leaves. Of course, you will still need to be careful not to touch the dead plants.It is important to caution any buyers to just apply and forget about it. This control formula will eventually do the job. I believe that because it is slow acting, it will cause less damage to other plants. And it may cause some buyers to just return it to AMAZON. That would be a mistake. There was still some damage to a neighboring bush where the solution hit it but not enough to hurt the bush. If you want to protect other plantings, I recommend using a piece of cardboard to protect other plants.

I purchased this locally for poison ivy in May, and it worked well. You only apply it just once to foliage and it gradually kills the roots. At first, it doesn't seem like it is doing much, but the plants died back over the course of days to a week after the one application. I haven't noticed any effects to adjacent, non-target plants. Nearby, I had a small stand of Japanese knotweed that I was quite worried about and planning to try to cover for years to smother (since there are few other options for this pernicious weed). Japanese knotweed is not indicated on the label, but I tried it anyway. I am thrilled and amazed to see that it has worked--a month later, the plants have died back and there has been no new growth since. I then tried on Oriental bittersweet (another terrible invasive) and it worked on that as well even thought it is not on the label either. I am so impressed that it has worked on the knotweed especially--this seems like a game changer in the fight against some of our worst invasives.

Bottle was leaking in box

Puget Sound. Sprayed for poison oak on August 2nd, well past the recommended season: ideally it is applied in the spring, during peak growing season. Fourteen days later, it is obviously very effective: leaves that were sprayed are either yellow/brown (large, mature leaves) or just flopped over and wilting (newer leaves). I have now made a second foray to spray patches that I missed on the first round (still lustrous green: a good inadvertent control group) and a few new sprouts that appeared in areas where I had earlier attempted to rip out creepers (vain hope).Overspray effects neighboring salal lightly; Himalayan blackberry is hit hard; native PNW blackberry, sword fern, and bracken fern don't seem badly affected (or I missed them with the overspray).I hate using chemicals, and I resisted spraying herbicides at first, but after a misguided attempt at physically ripping out the poison oak, and a subsequent five weeks of itching despite gloves and tyvek suit, I gave in. The real proof will be how well the rhizomes die back and stay dead, but so far I am chagrined to say this stuff seems to work wonders for making wooded trails safe. I have a second bottle ready to go in case the poison oak reemerges in the spring.Follow-up --May 6, 2020: The areas I sprayed last summer are well and truly dead. No sign of resurgence --at least not yet, and other, newly discovered patches are luxuriant with new growth, so if the old areas were likely to grow back, I expect I'd be seeing something by now. I've now used my second bottle of the stuff on regrowth in the areas I last summer tried to rip out (utterly futile; the effort worked more to propagate than eradicate) and an area I didn't discover at that time. With any luck, using this stuff in the recommended growing season will knock it back hard.To summarize: my 5-star rating holds. This stuff works.

It came leaking all over the inside of the wrapper. I spent 10 minutes requesting a replacement since you have to keep entering 500 words in several places for it to proceed and the replacement was leaking all over the inside of the wrapper as well