As summer sets in across the Mid-Atlantic, residents of Maryland and Pennsylvania often notice an uptick in buzzing, stinging visitors such as wasps and hornets. These insects become much more visible during the hottest months of the year. But why is summer their prime time? Understanding the seasonal behavior of wasps and hornets can help you avoid unpleasant encounters and, perhaps even, appreciate their ecological role.
The Summer Surge: It’s All About the Colony
Wasps and hornets are social insects, meaning they live in colonies with queens, workers, and a defined hierarchy. In early spring, fertilized queens emerge from winter hibernation and begin building nests from chewed wood and saliva. These small nests may start with just a handful of eggs and a few cells.
By mid to late summer, those tiny starter nests have transformed into large, bustling colonies containing hundreds and up to thousands of workers. This is when activity peaks. The queen continues to lay eggs, and the workers are constantly foraging for food to feed the growing brood.
The result? You’ll see more wasps flying around your yard, garden, or picnic table in search of protein (like insects or meat) and sugary substances (like fruit, soda, or nectar).
Rising Temperatures = Faster Development
Heat is a catalyst in the insect world. As temperatures rise in summer, wasps and hornets develop faster. Eggs hatch sooner, larvae grow more quickly, and colonies expand at a much more rapid rate than in cooler months.
Warm weather also stimulates increased foraging activity. Wasps are cold-blooded and rely on external temperatures to regulate their metabolism. In hot weather, they’re more energetic and can fly longer distances. This makes them more more likely to cross paths with us as we enjoy the outdoors.
Shifting Diets and Food Competition
In early summer, most wasps are focused on collecting protein, such as insects and spiders, to feed developing larvae in the nest. By late summer, the colony shifts gears. The queen slows or stops laying eggs, and there are fewer larvae to feed. This changes the dietary needs of the workers.
Without brood to care for, worker wasps begin searching for carbohydrates to fuel themselves. That’s when they start scavenging human food, showing up at your picnic or trash can in search of sugary drinks, ripe fruit, or even melted ice cream. This is also when they can become more aggressive in defending food sources or nesting sites.
Increased Risk of Stings
More activity means more chances for conflict. As colonies grow, so does their need to defend the nest. Accidentally disturbing a hidden nest, especially ground-dwelling yellowjackets, is one of the most common causes of stings in summer. And because wasps and hornets can sting multiple times (unlike bees), encounters can be painful and even dangerous for allergic individuals.
Stay Cautious and Seek Help if Necessary
Wasps and hornets may be more active and visible in summer and, while it’s important to be cautious around these stinging insects, it’s also worth remembering that they play a valuable role in controlling pests and even helping with pollination. By giving them space, securing food waste, and keeping an eye out for nests, you can reduce your risk of unpleasant encounters and safely coexist with these misunderstood summer buzzers.
If you find yourself with an infestation that you simply cannot stand, contact a professional pest control company like On The Fly Pest Solutions to get the problem taken care of!
