Natural Ways to Encourage Predators of 13-Year Periodical Cicadas

Periodical cicadas, especially the 13-year species, are among nature’s most fascinating and well-known insects. Emerging en masse after more than a decade underground, these cicadas attract significant attention due to their sheer numbers and distinctive chorus. While they are generally harmless to humans and the environment, the sudden surge in their population can sometimes cause concern in gardens, orchards, and wooded areas. One natural approach to managing cicada populations is to encourage their predators, which helps maintain ecological balance without resorting to harmful chemicals.

In this article, we’ll explore natural ways to attract and support predators of 13-year periodical cicadas, promoting a healthier ecosystem and effective biological control.

Understanding 13-Year Periodical Cicadas

Before discussing how to encourage their predators, it’s important to understand the lifecycle of these cicadas:

• Lifecycle: 13-year periodical cicadas spend most of their lives underground as nymphs, feeding on root sap. They emerge synchronously in massive broods every 13 years to molt into adults.
• Behavior: Once above ground, they mate and lay eggs on tree branches for about four to six weeks before dying off.
• Impact: Although they do not sting or bite people, the egg-laying process can cause damage to young trees, especially fruit trees and ornamental plants.

Natural predation plays an important role in reducing cicada numbers during their brief emergence.

Natural Predators of 13-Year Periodical Cicadas

A variety of animals prey on periodical cicadas during their vulnerable adult stage. These include:

• Birds: Crows, blue jays, mockingbirds, sparrows, and woodpeckers readily feed on cicadas.
• Mammals: Raccoons, squirrels, bats, and opossums eat cicadas.
• Reptiles and Amphibians: Frogs, lizards, and snakes consume them opportunistically.
• Insects and Arachnids: Spiders (especially orb-weavers), praying mantises, wasps, and ants attack both adult cicadas and nymphs.

Encouraging these predators in your area can help keep cicada populations manageable.

How to Naturally Encourage Cicada Predators

1. Create Bird-Friendly Habitats

Birds are among the most effective predators of periodical cicadas. Attracting insectivorous birds can significantly increase predation rates during emergence years.

• Plant Native Trees and Shrubs: Provide food sources (berries, seeds) and shelter for birds by cultivating native vegetation adapted to your region.
• Install Birdhouses: Encourage cavity-nesting birds like bluebirds and chickadees by placing birdhouses around your property.
• Provide Fresh Water: Set up birdbaths or small ponds to supply water for drinking and bathing.
• Avoid Pesticides: Chemicals reduce insect populations that birds rely on for food; maintain a pesticide-free garden for a healthy bird population.

2. Support Bat Populations

Bats consume huge amounts of insects nightly and can catch flying cicadas at dusk.

• Erect Bat Houses: Installing bat houses provides safe roosting sites near your garden or orchard.
• Preserve Trees: Older trees with cavities offer natural bat habitats.
• Limit Light Pollution: Excessive artificial lighting disorients bats; use downward-facing lights or motion sensors instead.

By providing suitable shelter and reducing disturbances, you enhance the chances of bats frequenting your area during cicada emergence.

3. Encourage Beneficial Insect Predators

Insects like praying mantises, spiders, parasitic wasps, and ants prey on cicadas throughout their lifecycle.

• Plant Diverse Flora: A variety of flowering plants attracts beneficial insects that hunt or parasitize cicadas.
• Avoid Broad-Spectrum Insecticides: These kill beneficial predatory insects along with pests.
• Create Ground Cover: Leaf litter and mulch provide habitats for ground-dwelling predators such as ants and beetles.

Maintaining a balanced insect community strengthens biological control of cicadas naturally.

4. Foster Amphibians and Reptiles

Frogs, toads, lizards, and snakes also consume adult cicadas opportunistically.

• Build a Small Pond or Wetland Area: This increases amphibian populations by providing breeding grounds.
• Maintain Rock Piles or Logs: These serve as shelter for reptiles like lizards and snakes.
• Minimize Lawn Chemicals: Amphibians are sensitive to pollutants; using organic gardening methods helps sustain them.

Creating a hospitable environment for these creatures supports natural predation.

5. Promote Mammalian Predators

Some mammals including raccoons, squirrels, opossums, and foxes eat adult cicadas.

• Provide Natural Habitat: Preserve wooded areas or dense shrubbery for cover.
• Avoid Trapping or Poisoning Wildlife: Encouraging native mammals requires non-lethal coexistence strategies.

While mammals may be less targeted as pest controllers compared to birds or bats due to their potential conflicts with humans or pets, fostering a balanced ecosystem benefits all species involved.

Additional Tips for Supporting Predator Populations

Maintain Ecosystem Diversity

Diverse habitats with multiple plant species create complex food webs supporting a wide range of predators.

Avoid Chemical Controls When Possible

Pesticides indiscriminately kill beneficial insects and reduce food sources for predator animals. Employ natural management methods such as pruning damaged branches where female cicadas lay eggs.

Monitor Predator Activity

Observe which predator species frequent your property. Use this information to tweak habitat enhancements tailored specifically for those wildlife types.

Timing Is Key

Encourage predator presence just before the expected emergence year by preparing habitats well in advance, often several years before the brood surfaces.

Conclusion

The phenomenon of 13-year periodical cicadas is both awe-inspiring and challenging due to their large-scale emergence patterns. Instead of fighting nature with chemicals or disruptive interventions, embracing natural methods to encourage predators is a sustainable solution that enhances biodiversity while keeping cicada populations in check.

By creating inviting environments for birds, bats, beneficial insects, amphibians, reptiles, and mammals, through planting native vegetation, installing shelters like birdhouses or bat boxes, providing water sources, avoiding pesticides, and fostering ecosystem diversity, you establish a natural balance. This approach not only controls the periodic surge of cicadas but also promotes overall garden health and environmental resilience.

The next time the ground trembles beneath the mass emergence of these remarkable insects after thirteen long years underground, rest assured that nature’s own hunters are ready to play their vital role in maintaining harmony within the ecosystem.