Watch for Aphids and Caterpillars
Even healthy petunias can draw in pests—aphids, budworms, and caterpillars are common visitors. A little pest damage is normal, but a full infestation can quickly derail your bloom production. Keep an eye out for curling leaves, sticky residue, or holes in petals and act quickly.
I like to use a strong blast of water or a diluted neem oil spray at the first sign of trouble. Encouraging natural predators like ladybugs and parasitic wasps is also a great long-term strategy, especially in a field setting where chemical treatments can do more harm than good. Healthy, pest-free plants are free to focus on blooming rather than defending themselves!