Indicate 5 is the choice of expert growers across North America for getting the most out of their spray programs. Years of testing have proven that pesticides and fungicides are more effective and last longer when mixed and sprayed in a 4.5 to 5.5 pH solution. No pH strips are needed as Indicate 5 will turn the water a light pink color when the correct amount has been added. Usage varies, but the average ranges between 1 Teaspoon and 1 Tablespoon per gallon of spray solution. Indicate 5 also contains a great surfactant (spreader/sticker) to evenly distribute the spray across the leaves and stems. Extremely economical, especially when you consider the impact on the effectiveness of your fungicides and pesticides. Shipping included in the price to lower 48 States.