Whiteflies

Pests Biological Control Biocontrol Comments
Whiteflies Amblyseius swirskii Predatory mite for greenhouse whitefly and sweet potato whitefly (eggs and larvae), thrips (young larvae) and on pollen. Gently roll container to mix. Distribute loose mites onto leaves or hang sachets. Monitor whitefly populations.
Whiteflies Chrysoperla spp. Lacewings are general predators. Larvae prefer to feed on aphids, and will also feed on whiteflies, spider mites, thrips and insect eggs. Adults feed on pollen and are not used for biocontrol. Ants should be controlled prior to release. To distribute larvae, gently roll bottle to mix and shake larvae onto infested leaves. Also available as eggs and adults. Monitor whitefly populations.
Whiteflies Delphastus catalinae Predatory beetle for greenhouse whitefly and sweet potato whitefly. Adults and larvae feed on all stages of whitefly but prefers eggs and larvae. Release in the morning or evening. Gently roll bottle to mix. Apply in a cluster to hot spots. Delphastus are easily visible on cloudy days or in the evening. Look for larvae and pupae on undersides of leaves 4-5 weeks after first release. Monitor whitefly populations.
Whiteflies Encarsia formosa Parastic wasp for greenhouse whitefly. Suspend cards containing parasitized pupae. If distributing loose pupae, gently roll container to mix and distribute onto plants. Avoid direct sunlight. Parasitized greenhouse whitefly pupae turn black approximately 2-3 weeks after release. Monitor plants for parasitized pupae and whitefly populations.
Whiteflies Eretmocerus eremicus Parasitic wasp for sweet potato whiteflies and also host-feeds on greenhouse and sweet potato whiteflies. Adapted to wide temperature range. To release loose pupae, gently roll container to mix, then distribute on dry surface. Avoid direct sunlight. Parasitized whitefly turn yellow-brown approximately 2 weeks after release. Monitor plants for parasitized pupae and whiteflies.
Whiteflies Eretmocerus mundus Parasitic wasp for sweet potato whiteflies that is adapted to a wide temperature range. If using loose pupae, gently roll container to mix. Distribute onto leaves. If using cards, suspend cards containing parasitized pupae. Avoid direct sunlight. Parasitized whitefly turn golden-yellow approximately 2 weeks after release. Monitor plants for parasitized pupae and whiteflies.