Dog scratching its ear outdoors in summer, showing common signs of flea irritation.

December 4, 2025 Masixole Gqomoro

How to Keep Fleas Under Control in Summer

Summer is the season of sunshine, outdoor fun and unfortunately, fleas. As temperatures rise, these tiny pests become more active and reproduce faster, making it easier for them to spread. If you have pets or spend time in grassy areas, you’re more likely to encounter fleas during the warmer months.

The good news? With the right habits and treatments, which we'll discuss further below, you can prevent fleas from taking over your home and keep your pets itch-free all season long.

Cat scratching behind its ear, due to flea irritation

Why Fleas Are Worse in Summer

Fleas thrive in warm, humid conditions. In summer, their full life cycle, from egg to adult, can happen in as little as two weeks. That means if one flea enters your home, it can quickly turn into hundreds if steps aren’t taken early.

Key factors that make summer ideal for fleas:

Higher humidity helps flea eggs hatch faster.
Warm temperatures speed up their reproductive cycle.
More outdoor activities increase the chances of bringing fleas inside.

Signs Your Pet or Home Has Fleas

Look out for:

Frequent scratching, biting or licking (especially around the tail, belly, or paws).
Tiny black specks (flea dirt) on bedding, floors, or your pet’s coat.
Small red bumps or irritation on your pet’s skin.
Seeing small brown insects jumping, especially on light-coloured surfaces.

Early detection is your best defence in controlling an infestation.

Person in protective gear using a fumigation device to treat a couch, helping keep the home free from fleas.

How to Keep Fleas Under Control This Summer

1. Apply Diatomaceous Earth to Problem Areas

Diatomaceous Earth (DE) is a powerful natural remedy that helps control fleas in your home and garden. This gentle powder works by dehydrating fleas, larvae, and eggs, all without exposing your pets or family to dangerous chemicals.

Use DE by lightly dusting:

Pet bedding
Carpets and rugs
Cracks in floors
Outdoor sleeping areas
Garden spots where your pets lie down

Leave it for 12–24 hours, then vacuum thoroughly.

2. Keep Your Home Fresh and Clean

Flea eggs and larvae love settling in hidden spaces. Consistent cleaning prevents them from maturing.

Vacuum carpets, sofas, and pet areas regularly
Wash bedding in hot water weekly
Mop hard floors to remove larvae and eggs

Pairing a clean home with natural flea products ensures long-term control.

3. Maintain a Flea-Resistant Yard

A tidy outdoor space helps reduce flea populations.

Trim the grass short
Remove leaf piles and clutter
Sprinkle Diatomaceous Earth in shaded resting areas
Use natural yard sprays if needed

This protects your pets from bringing fleas indoors.

4. Give Your Pet Regular Baths

A simple bath using a gentle flea shampoo or natural soap can help remove fleas and soothe irritated skin.

Tip: A fine-tooth flea comb works well to catch fleas hiding in your pet’s fur.

5. Check Your Pet After Outdoor Activities

Check your pet's skin and fur for fleas after spending time outdoors - especially after walks in parks, hikes, or visits to the beach. Quickly catching fleas before they settle in prevents bigger problems later.

6. Consider Natural Remedies

Some pet owners prefer natural options alongside regular treatments. These include:

Coconut oil on the coat
Diluted apple cider vinegar spray
Flea-repelling herbs like rosemary or lavender

Final Thoughts

Fleas may be more active during the summer, but with a good prevention plan, a clean environment, and consistent treatments, you can keep these pests under control. Your pets stay comfortable, your home stays clean, and you enjoy the warm months without the stress of itchy bites or infestations.