Weed B Gone, etc, use around dogs.

gdcooperApril 30, 2006

What is a general rule in regard to using a product like Weed B Gone for weed control in my yard in which my dog uses? My dog stays in the house, but does frequent the outdoors. Can I use ORTHO WEED B GONE and expect for my dog to remain safe when rolling in the grass, eating grass, etc? If so, after what period of time? The ORTHO instructions and FAQ are very lacking in this area.

Thank you in advance.

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Exposure models and other relevant toxicology data are assessed when registering any pesticide, and the directions that end up on the label should be followed to keep people and pets from harm. Typically, once the product has thoroughly dried it is difficult to dislodge appreciable material from the surfaces. That is why most labels state to keep people and pets out of the application site until the spray material has dried completely.

    Bookmark   April 30, 2006 at 10:36PM
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rhizo_1 (North AL) zone 7

I strongly urge you to do a little bit of googling on the active ingredient in Weed B Gone. The active ingredient is '2,4-D'. Use that exact chemical short-cut to obtain your information.

My only suggestion, after you do your research (on this or any chemical), is that you consider self and family members first....pets should come second!

Here is a link that might be useful: Just to get you started........

    Bookmark   May 2, 2006 at 10:41AM
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Sigh... alrighty, I was not looking for a sermon. I'll consider myself and/or my pets and family members in whatever order I wish. I simply wanted to know if the active poison in the product was enough to hurt my dog after I sprayed it on. My family typically does not roll playfully in the grass or chew on the grass when relaxing in the sun. Of course if they did, that would be their choice and additional considerations would have to follow.

It looks like dogs fed the chemical on a regular basis could die. My assumption would be that it is relatively safe for my dog, but since he does chew on grass, I might have to take a pass.

I would ask what a more safe removal chemical might be because doing our yard by hand is back breaking, but I think I'll go elsewhere.


    Bookmark   May 7, 2006 at 3:26PM
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rhizo_1 (North AL) zone 7

Hold on there! I merely meant to gently remind you that you need to think in terms of avoiding casual contact for you and your family, not JUST your pets. We expose ourselves to such chemicals when we walk on the lawn, and bring it in the house on our shoes (for example). Animals and humans do NOT have to eat the stuff in order to be exposed.

You see....we are exposed to chemicals every single day. Each little assault sort of builds upon the other. Pets have a hard time of it since they may be bathed in chemicals, etc., and then trot around on a lawn where they can absorb toxins through their skin. Cancer and tumor rates in dogs and cats have skyrocketed in recent years.

2,4-D is one of the very very troublesome chemicals. Don't be misled. If one is exposed, chronically, to chemicals on a daily bases (which most of us are), that makes us more vulnerable to problems when confronted with one of the 'big guns'. Acute exposures are not what causes the problems....it's long term chronic interface.

So....don't go elsewhere for some good information. I'm here to educate not prosthelytize! Or judge. I'm not gonna stop doing that anytime soon, but I promise that I won't jump in on your post(s) again. Okay?

    Bookmark   May 8, 2006 at 9:21AM
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oceanna(7 WWA)

Cancer incidence in dogs has been on the increase, from what I've read. I've lost too many beloved dogs to cancer over the years, and it's heartbreaking.

I recently had two dogs with cancer -- one with skin cancer and one with mammary cancer. I took them to see my naturopath/herbalist friend and the first thing she asked me is "what did you put on your lawn?" My answer... Weed B Gon. I won't be using it again, much as I'd love to just squirt my dandelions away.

The fellow next door to me on one side has a gorgeous lawn... he has a service out to spray it periodically. He's also had cancer and fortunately after much stress, suffering and expense is in remission. Is there a connection? I don't know, but is taking that chance worth it?

Anyway, just thought I'd pop this back up to the top because it's that season again, and maybe the excellent advice given above will save a life, who knows?

    Bookmark   April 18, 2008 at 5:36AM
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A veterinarian here. 2,4-D is quite toxic, but I wouldn't blame your animal's cancers on it. Mammary cancers and skin cancers are the top 2 cancers in dogs, so it is not surprising you saw these 2.

Mammary cancer in dogs is far more prevalent than breast cancer in humans. In dogs, the cause of mammary cancers is almost entirely hormonal. This can be highlighted by these amazing statistics: the incidence of mammary cancer in dogs is less than 0.5% for dogs spayed before their first heat cycle (little time for sex hormone development). For dogs spayed after their second heat cycle, or not spayed at all, the incidence shoots up to 25% + !!!

Said another way, if your dog is not spayed, or is spayed after the second heat cycle, her chance of getting mammary cancer is 1 in 4 in her lifetime!!!! Almost no chance of cancer is she is spayed before her first heat!!!!

As for the causes of skin cancer..... well, it depends on the type of skin cancer.

I'm not defending 2,4-D, just letting you know that the product probably had nothing to do with your dog's cancers.


    Bookmark   April 24, 2008 at 6:17PM
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When I used weed be gone I always warned all pet owners to keep their animals out of my yard until a good rain. One neighbor did not take it seriously and had to take her dog to the vet when all it's fur starting falling out. I tried only doing sections of yard at a time so that the whole area was not toxic at one time. I made sure to water it well after the 24 hour wait period. I was told that they will pick it up on their paws especially in the late evening or morning if there is a heavy dew..then they ingest it when they lick those paws.

    Bookmark   July 22, 2008 at 8:17PM
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    Bookmark   July 25, 2008 at 7:46PM
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When you think it might be poison
an you don't know what to do-oo-ooo-o
Call 1.800.222.1222

Sorry, the Poison Control Jingle has been going in loops through my head. I thought I'd inflict it on someone else.

    Bookmark   June 8, 2011 at 9:09PM
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I've worked around these chemicals for years and maintained an applicators permit for over a decade. I'm well trained in use and take every precaution but am very wary of most broad-leaf chemicals, especially 2,4-D.

I have dogs and like the original poster, I am concerned about the exposure from paw licking, eating grass and generally rolling around and playing. Common sense tells us this is not desirable exposure. Also, there is pretty good evidence that 2,4-D and many hormone type herbicides can act as an endocrine disruptor with exposure over time. (You can find published studies, look for NCBI PubMed, Wiley etc.) Below is a link to get you started:

It bothers me that the products marketed to homeowners contain cocktails of not just 2,4-D but Dicamba, Mecoprop, and Tricopyr. I think this is overkill for most home situations. At the same time, HOA's , peer pressure and the homeowners own desire to have a nice looking place often make it necessary to control weeds somehow.

This is what I've come up with for my home:
-Dogs do not have access to my front lawn and since I have neighbors who are lawn obsessed, I just buy a hose-end all purpose broadleaf control, trying to avoid the multi chem cocktails as much as possible,and use that when dandelions first appear in the spring. In the front yard only, one time per year.
-Back yard is a different story with heavy use by dogs, people, barefoot children, etc. For the back yard, I buy a hand sprayer and mix up a product called Quicksilver. I feel like it's the best chemical option out there but mind you, it is still NOT organic, it is still a potential poison. It is expensive. 2-4, D is available from farm stores without the cocktail, as an alternative. I will spot-treat and individually spray each weed, I never broadcast spray my back yard. I do this only in the spring for the first flush of weeds.

For the remainder of the year, I have a separate sprayer that I use for Horticultural Vinegar. I zap the weeds with vinegar only for the remainder of the year, using harsh chemicals only in the spring when there are a lot of fast-growing weeds.

Other hints that may help:
-I try to time that spring application for when I'm out of town for a weekend. Put it down Friday night and take the dogs for a fishing holiday. That gives the chems time to break down some and then I can water by the time I come back.
-Mow your lawn a little higher. It can make a huge difference. Short-cropped turf makes it easy for weeds to invade.
-Space out your watering. A deep watering, followed by dryout makes it harder for weeds to germinate where constant sprinking grows weeds very well.
-Mulch those clippings back in! That will also suppress weeds in your lawn.
-Try to use turf varieties that are adapted to your area. My turf was Kentucky bluegrass originally. It did not handle the hot summers well at all, and I constantly had weeds and grub infestation. I got tired of that and overseeded with Bonzai 2000 truf-type tall fescue. The fescue handles the hot summers so much better and chokes out a lot of weeds on its own. It is also resistant to grubs, a characteristic of fescues = no more lawn moths.
- Consult your extension about what fertilizer you need and keep your lawn happy then it can choke out some weeds by itself and cut down on what you have to do. Here, I only use occasional nitrogen and Ironite and my lawn looks way better than the lawn obsessed neighbors:) They can't figure out why because they spend a small fortune every year. They also overspray 2,4-d even in the heat of the summer. When I see their kids run across the grass barefoot and then jump in and out of the swimming pool, I just cringe....

Here is a link that might be useful: Cornell university paper, endocrine disruption and herbicide

    Bookmark   April 18, 2014 at 10:17AM
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