If you’ve had potato scab before, check the pH of your soil and adjust it to 5.2 or a bit lower, down to about 4.8. To do this, you can add sulfur. You can also dip the cut seed potatoes in sulfur before planting, to help deter disease, including scab. As for using a soil acidifier for blueberries — that plant likes the pH in about the same range. If your product is basically elemental sulfur, without other additives focused on blueberry growth, then it should be fine to use.
If you’ve had potato scab before, check the pH of your soil and adjust it to 5.2 or a bit lower, down to about 4.8. To do this, you can add sulfur. You can also dip the cut seed potatoes in sulfur before planting, to help deter disease, including scab. As for using a soil acidifier for blueberries — that plant likes the pH in about the same range. If your product is basically elemental sulfur, without other additives focused on blueberry growth, then it should be fine to use.