We buy powdered chalk. You can find white powdered chalk on Amazon and Ebay. I emphasize white because many of the colored ones are not non-toxic.
Chalk bag is the quickest way with trees. There is a fair amount of wastage. Works quite well keeping many bugs off fruit trees also.
For painted surfaces. Take a gallon of latex paint and thin with 1/3 gallon of water and add 3 cups of chalk.
Chalk bag is the quickest way with trees. There is a fair amount of wastage. Works quite well keeping many bugs off fruit trees also.
For painted surfaces. Take a gallon of latex paint and thin with 1/3 gallon of water and add 3 cups of chalk.