This is the time of year when your geraniums and petunias can suddenly stop blooming. When you look closely, you’ll see what looks like black pepper on the leaves and you’ll see tiny holes in the geranium flower buds.
The problem is a tiny worm, called a budworm. You can help control budworm with biological insecticides containing BTi, such as Dipel and Thuricide. pply Fertilome’s Weed-Out Plus. This will feed your lawn and get rid of broadleaf weeds, including dandelions. ertilizing your flowering annuals with Fertilome water soluble 20-20-20. You should feed container plants, including hanging baskets every 7-10 days. Annuals planted in the ground can go a little longer between feedings. Plan to feed these plants every 14 days. Some other things to watch out for this time of year. You might see grass starting to grow amongst your iris and phlox. You can use Grass B Gon ready-to-use to get rid of the grass without harming your perennials. Powdery mildew looks like white, talcum powder on your roses, lilacs, phlox, etc. Powdery mildew can also affect vegetables.