4oz to the gallon. If it's a Jerry Baker brand sprayer, then the mixing is done by controlling how much mix goes into the sprayer, then filling the sprayer with water, then spraying. If it's a conventional hose-end sprayer, with a mixture knob on top, just set the knob to 4oz to the gallon. Jerry Baker can be a pretty controversial subject on this board. Some folks are fans of his, and some folks are not. Personally, I'm a fan.

Try the new to gardening forum. Lots of experienced gardeners answer all sorts of questions. Go to the forum and the at the bottom of the page, "search" for sprayer -- I'm pretty sure your question has already been answered. Here is a link that might be useful: New to Gardening GW forum.

I want books by Jerry Baker. I will trade one of my books for one of your books. I have: -The Rodale Guide to Composting by Jerry Minnich, Marjorie Hunt, and the editors of Organic Gardening magazine. (Hardcover) -2 books for 1 trade:Poodle by Kerry Donnelly(hardcover) and Know Your Poodle by The Pet Library LTD (paperback) -Butter Busters the Cookbook by Pam Mycoskie(spiralbound) Very thick book. -Never-Say-Diet Book by Richard Simmons (hardcover) -Amaranth from the past for the future by John N. Cole (hardcover) -Stokes Nature Guides:A Guide to Observing Insect Lives by Donald Stokes (paperbound)

Please forgive me.I had no idea when posting this that I was infringing on copyright laws. If anyone is interested in any of these tonics,feel free to e-me directly and I will respond. I didn't intentionally mean to post copyrighted stuff. Breezy