Brown cicadas are fascinating insects known for their distinctive sound and periodic emergence. However, when they invade your property in large numbers, they can become a nuisance, damaging plants, decking surfaces, and creating loud noise that disrupts your peace. If you’re looking for effective ways to keep brown cicadas away from your home, this comprehensive guide will provide you with practical strategies and tips to protect your living space while respecting the natural environment.
Understanding Brown Cicadas
Before diving into prevention methods, it’s important to understand these insects and their behavior.
What Are Brown Cicadas?
Brown cicadas are a type of true bug belonging to the family Cicadidae. They are characterized by their stout bodies, transparent wings, and the ability to produce loud mating calls. Brown cicadas typically emerge during late spring through summer, and their life cycle involves spending several years underground as nymphs before emerging as adults.
Why Are Brown Cicadas a Problem?
While brown cicadas do not bite or sting, their large populations can cause problems such as:
- Damage to trees and plants: Female cicadas lay eggs inside small twigs and branches, which can cause dieback or breakage.
- Noise disturbance: Males produce loud calls that can last for hours.
- Attraction of predators: A surge in cicada numbers can attract birds and other wildlife that may also disturb your property.
- Physical mess: Dead cicadas can accumulate on decks, patios, or around your home.
Understanding these issues underscores the importance of managing cicada presence near residential areas.
Natural Deterrents to Keep Brown Cicadas Away
You don’t have to resort to harsh chemicals or disruptive measures to keep brown cicadas at bay. Several natural approaches can help minimize their presence near your home.
1. Maintain Healthy Vegetation
Cicadas are attracted to certain trees when laying eggs. By keeping your plants healthy and well-maintained, you reduce their appeal.
- Prune susceptible trees: Remove small twigs and branches where female cicadas prefer to deposit eggs.
- Choose less attractive plants: Some tree species, such as maples, oaks, and elms, are favored by cicadas. Consider planting less preferred varieties like dogwoods or magnolias.
- Avoid excessive fertilization: Over-fertilizing can encourage tender new growth which attracts egg-laying females.
2. Use Physical Barriers
Physical barriers act as a direct deterrent preventing cicadas from settling on your plants or entering your home.
- Netting or mesh covers: Cover young or vulnerable trees with fine mesh netting during peak cicada emergence times (usually early summer). This prevents females from reaching branches.
- Seal entry points: Inspect your home for cracks, gaps, or openings around windows and doors where insects might enter. Use weather stripping or caulk to seal these areas.
- Screen vents and chimneys: Install insect screens over attic vents and chimneys to block accidental entry.
3. Introduce Natural Predators
Encouraging wildlife that preys on cicadas can help control their population naturally.
- Bird feeders and birdhouses: Attract insectivorous birds like blue jays or sparrows that feed on cicadas.
- Beneficial insects: Certain wasps and parasitic flies target cicada nymphs and adults.
- Avoid pesticides: Broad-spectrum insecticides kill beneficial predators as well; opt for targeted methods instead.
Chemical Control Options
While natural deterrents are ideal, sometimes chemical intervention becomes necessary when faced with massive infestations.
1. Insecticidal Sprays
There are insecticides labeled for use against cicadas that can reduce their numbers when applied correctly.
- Timing is key: Apply sprays when adult cicadas first emerge but before egg-laying begins.
- Target affected areas: Focus on tree branches and shrubs where cicadas congregate.
- Use pyrethroid-based products: These are commonly recommended for outdoor insect control but always follow label instructions carefully.
2. Residual Insecticides for Soil Treatment
Since cicada nymphs live underground feeding on roots for years, soil treatments with certain insecticides may reduce future populations.
- Consult local extension services or pest control professionals before proceeding with soil treatments due to environmental considerations.
Additional Practical Tips
Beyond natural deterrents and chemicals, several other practices can help you protect your home from brown cicadas effectively.
1. Regular Cleanup
Dead cicadas can create slippery surfaces and attract other pests:
- Sweep decks, patios, and walkways frequently during emergence periods.
- Dispose of carcasses in sealed bags away from living areas.
2. Minimize Outdoor Lights at Night
Like many insects, cicadas are attracted to lights:
- Reduce porch or garden lighting during peak activity times.
- Use yellow “bug lights” that are less attractive to insects.
3. Monitor Cicada Activity
Stay informed about local cicada emergence cycles:
- Many species emerge in predictable intervals (e.g., every 13 or 17 years).
- Knowing when brown cicadas will appear allows you to prepare preventive measures in advance.
When to Call Pest Control Professionals
If you experience severe infestations despite all preventive efforts, it may be time to seek expert help.
Professional pest control services have access to specialized tools and treatments designed for large-scale control of cicada populations while minimizing environmental impact. They can also conduct thorough inspections to identify entry points and vulnerable plants on your property.
Environmental Considerations
It’s important to remember that brown cicadas play a vital role in ecosystems:
- Their emergence aerates soil through nymph burrowing.
- They serve as food sources for many animals.
- Their life cycles contribute nutrients back into the environment after death.
Whenever possible, use humane and eco-friendly methods rather than indiscriminate pesticide use that harms non-target organisms.
Summary
Keeping brown cicadas away from your home involves a combination of understanding their behavior, maintaining healthy landscaping, using physical barriers, encouraging natural predators, considering chemical controls responsibly, and employing practical maintenance routines. By proactively managing your environment and taking appropriate actions before peak emergence periods, you can significantly reduce the inconvenience caused by these insects while preserving ecological balance.
Take action early this season with these tips in mind—and enjoy a quieter, more comfortable living space free of unwanted brown cicada visitors!
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