Herbicides are especially dangerous when improperly handled, applied or disposed of. They can cause injury to desirable plants, wildlife and fish, and they can contaminate water supplies. Always read and follow the directions on the herbicide label and follow all precautionary statements. It is a violation of federal laws to use any pesticide in a way that is inconsistent with its label. The label will list the tree and shrub species on which it can be used, the weed species it will control, recommended application rates, timing of applications, disposal and other directions and precautions.
Pennant is labeled for weed control in field-grown ornamentals.
Pennant will provide pre-emergence control of selected annual grasses and broadleaf weeds. However, it will not control established grasses or broadleaf weeds. Apply Pennant following the transplanting of dormant seedlings as either a directed spray to the soil surface or over the top of seedlings after the soil has firmly settled around the root system. Broadcast applications of Pennant should be followed by sufficient overhead irrigation to wash the herbicide from the foliage to reduce the chance injury. Do not use in areas where the groundwater level is close to the surface.