Merit 75 WP - Questions & Answers

Unfortunately most hose end sprayers only work with liquid and not a dry product like merit.  It typically will not mix very well with the water.  Although it does take longer, a hand pump sprayer is much more effective and ensures the product is mixed thoroughly and applied evenly.  We do have many inexpensive back pack sprayers which will allow you to apply 4 gallons of solution at a time fast and efficiently.

You should do a foliage spray with the Merit WP as waiting for the product to be taken up by the roots from soil drench and trans-located through the plant can take too much time when you already have a damaging pest population. You will need to use 0.25 tsp of Merit per 2.5 gallons of water and thoroughly spray the foliage (don't forget to spray the underside of leaves). Foliage sprays will also work systemically. In the future you can choose to do soil drenches before the pest population has a chance to build. You will need to use 0.7- 1.4 level teaspoons of MERIT 75 WP Insecticide per foot of shrub height or 1 to 2 ounces per 30 cumulative feet of shrub height mixed in at least one pint of water per foot of shrub height. You will be required to pull back mulch or leaf debris near the root base prior to the application and you will be required to water in the application with about 1/2 inch of water. It is important to keep the soil moist for at least two weeks following the application to help with root uptake.