Pest identification
What's eating my passiflora incarnata?
Fritillary caterpillars
Signs: Larvae (orange with black spines) rapidly strip leaves down to bare stems; whole plant may be defoliated
Control: Hand-pick caterpillars if infestation is severe; tolerate when possible as they are native butterfly larvae; apply Bt (Bacillus thuringiensis) only if defoliation threatens plant survival
Japanese Beetles
Signs: Skeletonised leaves with only veins remaining; damage occurs in midsummer
Control: Hand-pick beetles into soapy water in the morning; do not use pheromone traps near the plant
Aphids
Signs: Dense colonies on new shoot tips; honeydew, sooty mold, and curled leaves
Control: Spray with insecticidal soap or neem oil; attract lacewings and ladybugs as natural predators
Keep passiflora incarnata pest-free
Healthy plants resist pests best. Get the basics right:
Passiflora incarnata pests — FAQ
What is eating my passiflora incarnata?
Passiflora incarnata (Maypop) is the larval host plant for Gulf fritillary, zebra longwing, and variegated fritillary butterflies — caterpillars can completely defoliate plants quickly. Japanese beetles skeletonise foliage in summer. Aphids cluster on new growth. Because it regrows vigorously from the roots, most pest damage, including caterpillar feeding, is tolerated.
How do I get rid of fritillary caterpillars on passiflora incarnata?
Larvae (orange with black spines) rapidly strip leaves down to bare stems; whole plant may be defoliated Hand-pick caterpillars if infestation is severe; tolerate when possible as they are native butterfly larvae; apply Bt (Bacillus thuringiensis) only if defoliation threatens plant survival
How do I get rid of japanese beetles on passiflora incarnata?
Skeletonised leaves with only veins remaining; damage occurs in midsummer Hand-pick beetles into soapy water in the morning; do not use pheromone traps near the plant
How do I get rid of aphids on passiflora incarnata?
Dense colonies on new shoot tips; honeydew, sooty mold, and curled leaves Spray with insecticidal soap or neem oil; attract lacewings and ladybugs as natural predators