In the United States, I am sorry to say, it's business as usual. It is up to producers, landowners and citizens to watchdog themselves. I am proud to say that many Americans have stepped up to watch over their land and their neighbors. Most realize that it's a small and beneficial change over to organic practices. Large producers like Fetzer, Sutter Home and Frog's Leap took the plunge into organics to create a safer environment for their workers and for preservation of the vineyards and water supply.
My best recommendation would be to go with producers who use sustainably, organically and/or biodynamically farmed grapes ("green grapes"). European and Australian wines should be fine as well. Unfortunately, due to the lax regulations in the US, I cannot vouch for our producers who don't use green grapes. Visit producer websites, research or contact them for more info. After all, it's your health, your money and your wine experience!