Jim from Haywood County, Nc writes
I am confused about your suggested 3/4t per gallon water ratio for sprayers while the instructions call for, on average say, 2lbs per acre. If you find your 1 gallon sprayer covers (say) 1200 sq ft that's about .03 or 3% of an acre and 3% of 2 pounds is ~ .9oz or ~2T, more than twice as much. Which quantity do I use? I sure appreciate your being available to answer these befuddlements!
Manzate Pro-Stick T and O Fungicide is not labeled for use on grapes so we unable to provide a rate for that application. Mancozeb Floweable with Zinc Concentrate would be a better option. Mix 3 to 4 tsp. per gal. Apply in sufficient water to provide thorough coverage starting when new shoots are ½ to 1 ½ inches long. Repeat when shoots are 3 to 5 inches long, when shoots are 8 to 10 inches long, and then at 7 to 10 day intervals until fruit is set or 66 days before harvest
Answer last updated on: 05/01/2017
