On 07/28/2015 11:04 AM, (PeteCresswell) wrote:

It's been about five days since I first sprayed some poison ivy with
Roundup - with a touch up application yesterday.

I'm not seeing any signs of distress in the stuff.

OTOH, 3 days on crab grass and the stuff is clearly dead or on the way.

Bottom Line: Should Roundup be effective against poison ivy?

If so, what timeframe?

Aren't there various varieties of "RoundUp" -- for different weeds?

We don't have poison ivy, but we have poison sumac, and a weedkiller
specifically labeled as being for poison ivy, oak, sumac, etc. (don't
recall the brand or name) leaves our poison sumac looking very ill after
only a couple of hours.

Use the correct product for the job at hand.

Perce