So i followed the manufacters label and used 5 oz of product per gallon erring on the safe side as the label says the high level is 8 oz per gallon. The Texas A&M site says .64 oz per gallon is safe, as does Penn State, sure wish i had done more research before i sprayed. I will probably lose 50% of my foliage. Maybe the label is a typo? Almost all plants on their label are recommended to mix 2.5-5 pints per 100 gallons, grapes and a couple other fruits were 2.5-5 pints per 10 gallons. Well nothing to do about it but go have dinner and a glass of wine. Penn state did see leaf burn on Chardonnay, my Itascas didn't burn as much as my Marquette. Just wanted to let others know about this.