Snapdragon Potomac Royal Common Pests: Aphids: These tiny, soft-bodied insects suck sap from the plants, leading to curled, yellowed, or distorted leaves. They can also excrete a sticky substance that attracts other pests. Spider Mites: These minuscule, spider-like pests cause stippling or a dusty appearance on leaves. Severe infestations can result in yellowing or reddening … Continue reading Common Pest Disease & Companion Plants for Snapdragon Potomac Royal