A warning has been issued over ‘tens of millions’ of ants set to swarm the UK on Flying Ant Day this year. Pest control experts are predicting a significant surge in flying ant activity this year, due to the ideal combination of alternating wet and warm weather . They suggest that this year’s Flying Ant Day – the annual mating flight when millions of winged ants fill the skies in synchronised displays – could be one of the biggest we’ve seen in recent years. Rentokil says that this summer’s fluctuating conditions, particularly high humidity, are perfect for swarming. Paul Blackhurst, Head of the Technical Academy at Rentokil Pest Control, warned: “In past years, radar systems have even mistaken these dense clouds of ants for rain. “Experts predict that this year could see larger-than-usual swarms of flying ants, as we approach Flying Ant Day, also known as the nuptial flight, and sometimes nicknamed ‘flant day’. “This natural event, when vast numbers of winged ants, known as alates, take to the skies at once in search of mates from other colonies, could be one of the most prolific for years. “The alternating wet and warm weather we have been experiencing recently is creating the perfect conditions for larger-than-usual swarms, as humidity is important in keeping the ants’ wings and bodies moist during flight and ‘mating on the wing’.” Paul confirmed that despite the name, Flying Ant Day doesn’t happen on a single fixed day each year, reports Wales Online . “These swarming events can occur at different times across the country, depending on the weather, and in particular, temperature, humidity and wind,” he explained. “While you might see a few flying ants on most warm summer days, ideal weather conditions can trigger the appearance of tens of millions of them taking to the skies in massive swarms over several weeks across Britain. On radar, these dense clouds of insects can even resemble rain. “Though it may seem like a summertime nuisance, this swarming strategy is believed to help more ants survive by overwhelming their predators including swifts and gulls. “After mating mid-air, the male ants which are smaller will quickly fall to the ground and die. The newly fertilised female queens shed their wings and burrow into the soil to nest and start new colonies. “While flying ants might disrupt your picnic, barbecue, or pub garden pint, they play a vital role in the ecosystem by aerating soil, recycling nutrients, and serving as a key food source for birds.” Block entry points into your home by sealing cracks and crevices around doors, windows and pipework. Sweep up food debris from under kitchen appliances and units. Clear up any food or liquid spillages immediately. Store your food in airtight containers wherever possible. If you have a pet, clear away any food that isn’t eaten straight away. Make sure all rubbish bins have tightly sealed lids. Keeping windows and doors shut is one of the most effective methods of preventing flying insects from entering your home. Fitting a fly screen will stop flying ants from infiltrating your home, whilst still allowing windows and doors to remain open. Employ a potent detergent to eliminate any pheromone trails that foraging ants have established to guide other ants to a food source.