Per the product label: You would mix Merit 75 WP at the rate 2 oz per 30 cumulative feet of shrub height. Soil Drench: Uniformly apply the dosage in no less than 10 gallons of water per 1000 square feet as a drench around the base of the tree, directed to the root zone. Remove plastic or any other barrier that will stop solution from reaching the root zone.
Per the product label for Merit 75 WP - 2 oz.: Applications should not be made when turfgrass areas are waterlogged or the soil is saturated with water. Adequate distribution of the active ingredient cannot be achieved when these conditions exist. For optimum control, irrigate thoroughly to incorporate MERIT 75 WP Insecticide into the upper soil profile after application. The pH of the water is not important.
Merit 75 is not actually labeled for squash bugs, but squash bugs that try to feed off of treated plants would surely be affected. Merit 75 is most likely not labeled for squash bugs because it cannot be used on most edible plants which are the ones that will most likely be infested by this pest. We do carry Bayer Advanced Fruit, Citrus and Vegetable Insect Control and while it does share the same active ingredient as Merit 75 the formulation is a bit different which is what allows you to use it on edible plants.
Adult Japanese Beetles can be treated with Merit 75 WP by spraying the trees. When you apply it systemically, you need to be able to apply the right amount of product per area with enough water, therefore using the product inside the Ross Root Feeders will not be a good idea. Please refer to the product label for Merit 75 WP for complete application instructions. For more information about treating this pest, view our Japanese Beetle Control page.
The effects when Merit 75 WP - 2 oz. jar is applied off-label will be determined by many different variables. Please contact Bayer at 800-331-2867 for further assistance in this treatment.