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Seasonal pests

Seasonal pests: what to expect in summer

Discover which pests are most common in Belgian summers and how to prevent them.

2026-02-12 · 9 min

Why summer increases risk

Warm temperatures and humidity increase pest activity. In Belgium, summer brings higher insect populations and more rodent movement. Food sources and waste build up quickly, especially in cities.

A summer-specific strategy combines hygiene, monitoring and rapid response. Relying on winter practices alone is rarely sufficient.

Flies and mosquitoes

Flies and mosquitoes thrive near water and waste. Remove standing water, clean drains and keep waste sealed. For businesses, this is essential to maintain hygiene standards.

Professional inspections help locate hidden breeding sites that often go unnoticed during routine cleaning.

Wasps and hornets

Wasps build nests in spring and summer and become aggressive as nests grow. Roof edges and outdoor structures are typical nesting spots.

Early removal prevents large nests and reduces risks for families, customers and staff.

Cockroaches and heat

Cockroaches multiply faster in warm conditions, especially in kitchens and basements. Sealing gaps and maintaining strict hygiene reduces the risk.

If cockroaches appear, professional treatment is the most reliable way to eliminate them completely.

Planning for businesses

Busy summer periods in hospitality create more waste and food residue. A prevention plan helps avoid complaints and reputational damage.

Pestokil provides seasonal monitoring and rapid interventions to keep operations safe and compliant.

Home advice

Use insect screens, close doors at night and store food properly. Small actions make a big difference.

If you spot repeated signs, act quickly. Early intervention saves time and money.

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