Boxelder bugs are common pests known for invading homes and feeding on boxelder trees and other plants. If you’re dealing with a boxelder bug infestation or simply curious about natural ways to control their population, this list covers 10 effective predators that feed on these insects. Understanding what eats boxelder bugs can help gardeners, homeowners, and nature enthusiasts manage these pests more sustainably.
Spiders
Various spider species, including orb-weavers and jumping spiders, prey on boxelder bugs. Spiders capture these bugs in their webs or ambush them using quick reflexes, making them natural controllers of boxelder bug populations. Because spiders are generalist predators, they help reduce multiple pest species, including boxelder bugs, in garden and yard ecosystems.
Praying Mantises
Praying mantises are formidable insect predators that consume a wide range of prey, including boxelder bugs. Their excellent camouflage and swift strikes allow them to catch and eat these bugs effectively. Introducing praying mantises into gardens can provide natural pest control, but they are opportunistic feeders and may also consume beneficial insects.
Wheel Bugs (Arilus cristatus)
Wheel bugs, a type of assassin bug, are known for their distinctive cogwheel-shaped thorax and predatory habits. They actively hunt and feed on boxelder bugs by piercing them with their proboscis and injecting digestive enzymes. Wheel bugs are beneficial predators in agricultural and garden settings, helping keep boxelder bug numbers down.
Birds
Several bird species, such as chickadees, nuthatches, and sparrows, eat boxelder bugs, especially during the cooler months when other food sources are scarce. These birds pick bugs off tree trunks, leaves, and even walls where boxelder bugs cluster. Encouraging bird habitats can be a natural way to reduce boxelder bug populations outdoors.
Big-Eyed Bugs (Geocoris spp.)
Big-eyed bugs are small predatory insects that feed on various soft-bodied pests, including boxelder bugs. They use their piercing mouthparts to suck fluids from the bugs, effectively killing them. Big-eyed bugs are common in agricultural fields and gardens and contribute to integrated pest management strategies.
Green Lacewings
Green lacewing larvae, often called aphid lions, are voracious predators that consume many pest insects, including boxelder bugs. The larvae have strong mandibles to grasp and feed on boxelder bug nymphs and adults. Releasing green lacewings is a widely used biological control method in organic gardening.
Lady Beetles (Ladybugs)
While lady beetles primarily feed on aphids, some species will also prey on boxelder bug eggs and nymphs. Their appetite for pest insects makes them valuable allies in gardens and orchards. Encouraging lady beetles by planting diverse flowering plants can help suppress early boxelder bug populations.
Spined Soldier Bugs (Podisus maculiventris)
Spined soldier bugs are predatory stink bugs that feed on a variety of insect pests, including boxelder bugs. They use their proboscis to pierce and consume prey, helping to control pest outbreaks. These bugs are common in vegetable gardens and agricultural fields.
Earwigs
Although often misunderstood, earwigs are opportunistic predators that consume soft-bodied insects like boxelder bugs. They forage at night and can reduce pest numbers by feeding on eggs and young nymphs. Maintaining garden debris and mulch can encourage earwig populations as natural pest controllers.
Parasitic Wasps
Certain tiny parasitic wasps lay their eggs inside boxelder bug eggs, effectively killing them before they hatch. For example, species in the genus Gryon are known egg parasitoids of boxelder bugs. These wasps are an important natural control agent, helping limit boxelder bug reproduction in natural ecosystems.
How to Choose
When selecting natural predators to help control boxelder bugs, consider the environment and your specific needs. Spiders and birds are excellent for general outdoor control but offer no indoor relief. Praying mantises and green lacewings are effective in gardens but may require purchasing and releasing. Parasitic wasps provide targeted egg control but are less visible and harder to manage. Prioritize predators that naturally occur in your area and align with your pest management goals, whether you want ongoing prevention or quick reduction.
Frequently Asked Questions
Do boxelder bugs have natural predators inside the home?
Generally, no. Boxelder bugs indoors face few predators, which is why infestations can grow until they are physically removed.
Are boxelder bugs harmful to plants?
They cause minimal damage by feeding on seeds and leaves but are mostly a nuisance pest rather than a serious threat.
Can birds completely control boxelder bug populations?
Birds help reduce numbers but usually cannot eliminate infestations alone, especially in large infestations.
Is it safe to release praying mantises for boxelder bug control?
Yes, but be aware they are generalist predators and may eat beneficial insects as well.
Do chemical pesticides affect natural predators?
Yes, many insecticides can harm beneficial predators, so integrated pest management is preferred.
How can I attract natural predators to my garden?
Planting native flowering plants, reducing pesticide use, and providing shelter like brush piles encourage predator populations.
Final Thoughts
Boxelder bugs may be unwelcome guests, but nature provides several effective predators that help keep their populations in check. From spiders and birds to specialized parasitic wasps, each predator plays a unique role in controlling these pests. By understanding and encouraging these natural enemies, gardeners and homeowners can reduce reliance on chemical controls and promote a balanced ecosystem. Whether you want to attract birds or release beneficial insects, integrating natural predators is a sustainable way to manage boxelder bugs year-round.
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