Pest identification
What's eating my prickly pear cactus?
Cochineal scale (Dactylopius spp.)
Signs: Bright white powdery wax over pads; crushing insects reveals red liquid; severe infestations cause pad drop.
Control: Blast off with a strong water jet; apply neem oil or insecticidal soap; remove and dispose of heavily infested pads.
Aphids
Signs: Clusters of small soft insects at new pad growth and around flowers; sticky honeydew, ants present.
Control: Knock off with a strong water spray; introduce ladybugs; apply insecticidal soap for persistent colonies.
Slugs and snails
Signs: Irregular shallow gouges or chewed margins on young pads, especially in moist conditions.
Control: Apply iron phosphate slug bait around the base; remove debris where slugs shelter; use copper tape for container plants.
Deer and javelinas
Signs: Entire pads or fruit removed, torn surfaces, and visible browse damage, especially in arid regions.
Control: Use sturdy wire fencing or rock barriers in edible orchards; commercial repellents have limited effectiveness on arid-climate wildlife.
Keep prickly pear cactus pest-free
Healthy plants resist pests best. Get the basics right:
Prickly Pear Cactus pests — FAQ
What is eating my prickly pear cactus?
Prickly Pear Cactus (Opuntia ficus-indica) is an edible, outdoor-grown crop vulnerable to cochineal scale (Dactylopius coccus), which produces a vivid red dye and seriously weakens plants. Aphids, slugs and snails, and vertebrate animals including deer, javelinas, and packrats can also damage pads and fruit. Cochineal control is essential for fruit production.
How do I get rid of cochineal scale (dactylopius spp.) on prickly pear cactus?
Bright white powdery wax over pads; crushing insects reveals red liquid; severe infestations cause pad drop. Blast off with a strong water jet; apply neem oil or insecticidal soap; remove and dispose of heavily infested pads.
How do I get rid of aphids on prickly pear cactus?
Clusters of small soft insects at new pad growth and around flowers; sticky honeydew, ants present. Knock off with a strong water spray; introduce ladybugs; apply insecticidal soap for persistent colonies.
How do I get rid of slugs and snails on prickly pear cactus?
Irregular shallow gouges or chewed margins on young pads, especially in moist conditions. Apply iron phosphate slug bait around the base; remove debris where slugs shelter; use copper tape for container plants.
How do I get rid of deer and javelinas on prickly pear cactus?
Entire pads or fruit removed, torn surfaces, and visible browse damage, especially in arid regions. Use sturdy wire fencing or rock barriers in edible orchards; commercial repellents have limited effectiveness on arid-climate wildlife.