6 Reasons Why Are Pests More Active In Summer

Preventing Summer Pest Infestations

6 Reasons Why Are Pests More Active In Summer

Summer is finally here! The sunny days and warm temperatures make it the perfect time to spend more time outdoors.

However, the summer season also brings some unwelcome guests – pests! If you’ve noticed more bugs, rodents, and other critters around your home lately, you’re not alone.

Eco Pest Control Adelaide is here to provide you reasons why pests become much more active in the summer for several key reasons:

1. Warm Temperatures Get Pests Moving

Warmer temperatures and an upper level of humidity in the summer awaken many species from lower activity levels or even hibernation in the winter. Cockroaches, ants, fruit flies, termites, mice, and other pests take advantage of the warmer climate to become more active.

Higher degrees of hotness allow cold-blooded creatures like spiders, centipedes, and scorpions to move and hunt more effectively. Warmer heat conditions also speed up insects’ life cycles and reproduction.

2. More Food Sources Available

The availability of food outdoors is a major draw for pests in summer. Bees pollinate flowering plants, while fruits ripening on trees attract animals. Animal food left outside, improperly stored waste, garden produce, and other readily available sources provide nutrition for rats, mice, raccoons, ants, and other species.

Pests aren’t picky eaters, so any scraps or debris left around the home can become an open buffet for them to feast on all summer long.

3. Optimal Time for Mating and Reproduction

Summer’s warmth accelerates reproductive cycles for many pests. Crickets, cicadas, termites, and other bugs are trying to mate and lay as many eggs as possible during their short reproductive life stages.

Rodents also breed rapidly in warmer months, with mice able to produce a new litter every 20 days. More baby pests mean higher populations invading homes and yards.

4. More Daylight Hours to Forage

The long, sunny days of summer give pests many more hours of daylight to scout for sanctuary. Crepuscular like mosquitoes, flies, and moths are most active at dawn and dusk but take advantage of summer’s extended daylight.

Nocturnal pests such as mice, raccoons, and opossums also have longer nights for sneaking into attics, garages, sheds, and other areas to nest.

5. People and Pets Spend More Time Outdoors

With people and pets spending more period outside in the warmer climate, there are more opportunities for encounters with stinging and biting pests. Bee and wasp stings, tick bites, and ant mounds in the yard become more common.

Pests also sneak inside on people, pets, or materials brought indoors. Keeping doors closed and checking for hitchhiking pests can prevent indoor infestations.

6. Life Cycles Favor Summer Activity

Many pests are most active during the summer months because of their natural life cycles. For example:

  • Stink bugs emerge in the breeding stage during the summer and invade homes through cracks and crevices when seeking overwintering sites.
  • Japanese beetles reproduce and feed on lawn and garden during their breeding stage in summer.
  • Yellowjackets and other wasps have rapidly growing colonies in summer that lead them to be more defensive around food.

The summer lines up perfectly with when these and other pest activity are programmed to be most active, mobile, and problematic.

What is the most common pest in the summer?

Effective Prevention and Control

While the reasons for summer pest problems are numerous, there are also many effective prevention.

Here are some tips for preventive measures and controlling pest issues this summer:

Keep Food Sealed and Put Away

Don’t give pests anything to feed on. Store all human and animal food in sealed containers, clean up spills quickly, and remove outdoor pet and bird feeders in the evening.

Install Screens

Screens on windows, doors, and vents keep flies, and other pests from entering while allowing fresh moisture-laden air to flow. Sealing cracks around the home is also important.

Inspect for Entry Points

Check under sinks, in basements, attics, and garages for holes, cracks, or other routes pests could use to get inside. Seal these entry points to deny access.

Manage Waste Properly

Empty garbage frequently, keep trash bins away from the home, and be diligent about removing clutter such as stacks of wood, debris, and old appliances that give pests places to hide and nest.

Call a Pest Control Expert

For severe pest infestations, it’s best to have a professional pest control technician inspect your home, treat properly, and recommend prevention to keep pests out.


What is the most common pest in the summer?

Ants are likely the most prolific home pest in summer. Carpenter ants, pavement ants, odorous house ants, and other species thrive in warm weather.

When are stinging insects most aggressive?

Late summer is when stinging pests like wasps and hornets are most defensive as they search for food and water to sustain their large nests.

What pest reproduces fastest in summer?

Mice can reproduce rapidly in summer, with females giving birth to a new litter every 20 days under optimal conditions.

How do I keep pests out of my home?

Practicing good sanitation, sealing cracks and crevices, installing screens, inspecting for entry points, and removing outdoor sources helps deny pests access into your home.

What pest control methods are safe for kids and pets?

Low-toxicity gel baits, boric acid, diatomaceous earth, and non-chemical traps are safer options than sprays for homes with children and pets. Always read product labels carefully.

Effective Prevention and Control


The summer season provides ideal conditions for pest invasions, but you can take proactive steps to protect your home.

Keeping pests out in the first place is most effective, but involving a pest management professional can help tackle more difficult infestations while keeping your family safe.

With a prevention-focused approach, you can still enjoy your summer and maintain a pest-free environment.