Answer: There are a few pesticides registered for use on Virginia Creeper, but the pesticide you choose will depend upon the insect pests you're finding on your plant. Brown spots are more likely fungal infections. Leaf spot diseases in creepers are caused by any of several fungi that thrive on moist leaf surfaces. Brown to black spots develop on the leaves of infected plants. These spots often come together to form larger patches of dead tissue. Sometimes there are flecks or black dots around the spots. These are the spore-bearing fruiting bodies of the fungus. Pick off and discard infected leaves, and spray the vine foliage every seven to ten days with a flowable sulfur spray. To keep fungal disease at bay, try to avoid wetting the foliage while watering the vines. Mulching around plants helps prevent fungi from being splashed up from the ground by rain.
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