In the past two months, the world watched in horror as flames ravaged the Los Angeles area, forcing hundreds of thousands to evacuate. Nearly 12,000 homes and structures were destroyed as fierce winds spread the fire, paralyzing entire communities.
The sky was thick with smoke as firefighters battled the uncontrollable blaze with limited resources. Lives were lost, homes destroyed, memories erased, and landscapes forever altered—leaving the region in turmoil.
Amid the visible destruction, another crisis often arises: a surge in pest infestations posing significant health, economic, and environmental risks.
From my experience living and reporting in Los Angeles, floods create breeding grounds for mosquitoes, and wildfires drive rodents into urban areas. Pest control is crucial in disaster recovery efforts, and ignoring it could have severe consequences.
Natural disasters like floods and wildfires disrupt ecosystems, wiping out predators that control pest populations. Without natural predators or effective control, these pest populations can rapidly overwhelm vulnerable communities.
Health, Safety, and Infrastructure Risk
The surge in pest activity after disasters is more than just an inconvenience—it’s a direct risk to the health of human communities and the ecosystem.
Paul Biggs, Orkin Division Technical Services Manager and Board Certified Entomologist, says that pest infestations can trigger conditions like asthma and allergic reactions, especially in children and those with respiratory conditions.
“Wildfires can destroy natural habitats, forcing rodents and other pests to seek shelter in human structures,” said Biggs. “Pests like cockroaches can easily contaminate food and surfaces that we frequently touch.”
Here are some health risks from more common pests:
- Cockroaches and dust mites can trigger asthma and allergic reactions, particularly in children and those with respiratory conditions. Their saliva, feces and shed body parts contain allergens that can exacerbate symptoms. Roaches are also known carriers of bacteria such as Salmonella and E. coli.
- Rodents carry and transmit diseases like hantavirus, leptospirosis, and salmonella. Their presence in homes can lead to food contamination and structural damage.
- Mosquitoes spread deadly diseases such as malaria, dengue, and Zika virus, with stagnant water creating vast breeding grounds in the wake of floods.
- Wildlife displacement after disasters increases human encounters with raccoons, skunks, and other animals that can carry rabies and other zoonotic diseases.
The aftermath of a disaster is already a time of heightened stress and vulnerability—adding a surge of disease-carrying pests into the mix only deepens the crisis.
Pest Control in Disaster Recovery
While specific data on infestation rates after wildfires is limited, residents can implement preventive measures to help keep their home safe:
- Seal Entry Points – Rodents and insects frequently look for shelter in homes and businesses after a disaster. Sealing gaps in foundations, doors, and windows can help prevent infestations.
- Maintain Cleanliness: Keep yards and surrounding areas free from clutter, debris and overgrown vegetation that could serve as nesting sites. Trim tree limbs and shrubs away from buildings to help reduce access points.
- Eliminate Attractants/Food Sources – Standing water, food debris, and structural damage provide the perfect environment for pests. Eliminating these attractants can reduce population growth.
- Consult Pest Control Professionals: Pest control providers, like the Pros at Orkin, can help prevent pest problems by tailoring solutions to specific properties.
- Community Collaboration – Homeowners, businesses, and local governments must work together to eliminate breeding grounds and prevent infestations before they become too overwhelming.
By taking proactive steps, we can protect our homes, our health, and our future from the hidden dangers that follow in the aftermath of destruction.