Dangerous Southern Spiders You Should Watch For

kphelps • October 20, 2021

Widow Spiders

The black widow spider may be the most commonly thought of widow spider, but it’s not the only one. There’s also the brown widow spider and the red widow. Additionally, there are two types of black widow spiders: the northern black widow and the southern black widow. Widow spiders build three dimensional webs that can look tangled, irregular, and messy. These spiders may have a bit of a scary reputation, given their name, but they’re not actually very aggressive spiders. They tend to only bite when they feel scared or threatened. Because they sometimes hide in shoes, old gloves, wood piles, and other places that are dark, it’s a good idea to take steps to reduce your risk of being bitten. Shaking out shoes and clothing before putting them on and wearing gloves when reaching into places that you can’t see can help. Bites aren’t usually fatal, but they’ll leave you feeling pretty miserable for a few days.

Recluse Spiders

Like the widow spider, there’s more than one type of recluse spider as well. Recluse spiders include the brown recluse, the Mediterranean recluse, and the Chilean recluse. While widow spiders may be known for their hourglass-shaped markings, recluse spiders are known for the darker violin-shaped markings. They also have six eyes that are arranged in pairs, differentiating them from other spiders that may have similar markings. Recluse spiders bite for similar reasons to widow spiders. Bites have the potential to be quite serious, even fatal, and can result in necrotic skin lesions. Out of the three types of recluse spiders, the Chilean recluse is the largest and the most dangerous.
Widow spiders and recluse spiders can be helpful to humans, thanks to the way they consume other pests, but they aren’t the sorts of spiders you want to have as neighbors regardless. These are the only two species of spiders found in North America that are generally considered dangerous to humans. Make sure you keep an eye out for them so you have a better chance of not getting bitten by them.

Are spiders not the only pest you need help dealing with? Check out What We Do to see what pests we can get rid of for you.

Happy children in school uniforms run through the hallway of a school
June 3, 2025
Maintaining a safe and healthy environment in schools is a top priority for educators, parents, and administrators in the Tri-Cities area of Kennewick, Pasco, and Richland. One crucial aspect of creating this environment is ensuring that school facilities remain pest-free throughout the year. Pests not only pose health risks to students and staff but can also damage property and disrupt the learning process. At Proterra Pest Control, we understand the unique challenges schools face in managing pests and are committed to helping you keep your educational spaces safe, clean, and welcoming. Why a Pest-Free School Environment Matters Schools are bustling environments where hundreds or even thousands of people gather daily. This high level of activity, combined with areas where food is served and consumed, creates ideal conditions for various pests to thrive. The consequences of a pest infestation in a school setting can be severe. Pests such as cockroaches and rodents can trigger allergies and asthma attacks , particularly in children. The presence of these pests can also lead to the spread of harmful bacteria and viruses, increasing absenteeism and affecting academic performance. Keeping schools pest-free is not just about comfort—it's about safeguarding the health and well-being of everyone on campus. Common Pests in Tri-Cities Schools The Tri-Cities region’s unique climate and geography make it susceptible to a range of pests that find school environments particularly attractive. Some of the most common pests in local educational facilities include: Ants: Especially during spring and summer, ants can infiltrate cafeterias, kitchens, and classrooms in search of food and water. While most ants are not directly hazardous, they can contaminate food supplies. Cockroaches: These resilient pests thrive in warm, moist environments and are frequently found in kitchens, locker rooms, and utility areas. Cockroaches are known carriers of pathogens that can cause food poisoning, dysentery, and allergic reactions. Rodents: Mice and rats are notorious for seeking shelter in schools, particularly during colder months. Rodents can chew through wires, walls, and insulation, posing fire hazards and causing significant property damage. They also carry diseases such as salmonella and hantavirus. Spiders: While most spiders found in schools are harmless, their presence can cause anxiety among students and staff. Certain species, such as the hobo spider, are more common in the Pacific Northwest and can inflict painful bites. Stinging Insects: Bees, wasps, and hornets often build nests near playgrounds and outdoor eating areas. Their stings can trigger allergic reactions, making them a significant concern, especially for children with known allergies. Health Risks Associated with School Pests The health risks posed by common school pests go beyond simple nuisance. Cockroaches, for example, are a leading cause of asthma symptoms in children, with studies demonstrating a direct correlation between cockroach allergens and increased asthma morbidity. Rodents, too, are a major health concern. Rodent infestations contribute to the spread of diseases and can exacerbate respiratory problems in sensitive individuals. Even smaller pests, like ants and flies, can contaminate food and surfaces, leading to outbreaks of foodborne illnesses. Given these risks, it’s clear that a proactive approach to pest management is essential for the health and safety of all school occupants. Integrated Pest Management: A Sustainable Approach for Schools In educational settings, pest control must balance effectiveness with safety. Children are more vulnerable to toxins, and schools must prioritize environmentally conscious solutions. This is where Integrated Pest Management (IPM) offers a comprehensive, sustainable strategy. IPM is a science-based, decision-making process that combines preventive measures, monitoring, and targeted action to manage pests with minimal impact on people and the environment. IPM programs have proven effective in reducing pest complaints and pesticide use in schools nationwide. Key elements of an effective school IPM program include: Regular Inspections: Frequent monitoring helps identify pest activity early before populations can establish. Sanitation Practices: Maintaining clean eating areas, promptly disposing of garbage, and reducing clutter removes food sources and hiding places for pests. Exclusion Techniques: Sealing cracks, repairing screens, and ensuring doors and windows close tightly prevent pests from entering the building. Education and Collaboration: Training staff and students on best practices for pest prevention creates a community-wide effort toward maintaining a pest-free school. By focusing on prevention and using targeted, low-impact treatments only when necessary, IPM minimizes exposure to chemicals and protects the school environment. The Role of Professional Pest Control Services While staff and students play an important role in maintaining a clean and pest-resistant environment, some infestations require expert intervention. Professional pest control providers, like Proterra Pest Control, are trained in the latest IPM techniques and equipped with safe, effective solutions tailored to educational facilities. Choosing a professional service offers several benefits: Customized Treatment Plans: Every school is unique, and a one-size-fits-all approach rarely works. Our team assesses each facility’s needs and designs a plan that addresses current infestations and prevents future problems. Ongoing Monitoring and Support: Regular visits ensure that pest populations are kept under control year-round. We also provide educational resources to help your staff stay vigilant. Compliance with Regulations: Schools are subject to strict health and safety regulations. Proterra Pest Control is familiar with state and local guidelines and ensures all treatments are compliant. Eco-Friendly Solutions: We prioritize the use of sustainable, non-toxic methods that are safe for children, staff, and the environment. If you’re interested in learning more about our approach to school pest management, visit our services page for detailed information.  Building a Pest-Free Future for Tri-Cities Schools A pest-free school is the foundation for a healthy, productive learning environment. By understanding the risks pests pose and adopting integrated pest management practices, schools in Kennewick, Pasco, and Richland can safeguard the health of their students and staff while maintaining compliance with safety regulations. At Proterra Pest Control, we’re your local partner in creating safer, cleaner educational spaces. Whether you’re dealing with an existing infestation or want to prevent future problems, our experienced team is ready to help. Contact us today to schedule a consultation and take the first step toward a pest-free campus. For more tips on keeping your facility pest-free, explore our blog or reach out to our experts with any questions about pest management in the Tri-Cities area. Your students and staff deserve the best—let’s work together to keep your schools safe, healthy, and welcoming all year long.
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