As the summer heat begins to fade and the days grow cooler, the countryside becomes a more pleasant place for leisurely walks—especially for dog owners. However, this time of year also brings a tiny but persistent pest: the harvest mite. These microscopic, bright red or orange arachnids are closely related to spiders and ticks. Found in soil, woodlands, fields, tall weeds, and overgrown gardens, they are also known as chiggers or berry bugs. Their scientific name in the UK is Neotrombicula autumnalis. These six-legged creatures latch onto people or animals that brush against their habitat, injecting enzymes that break down skin cells to feed on the liquefied tissue. Harvest mites are most active during September and October, as the eggs laid the previous summer begin to hatch into larvae. These larvae are less than a millimetre in size and nearly invisible to the naked eye. Symptoms of a harvest mite bite typically appear about 24 hours after exposure and include intense itching that can last for several days. The most common sign is "itchy red bumps that can look like pimples, blisters, or small hives," often appearing on the waist, ankles, or in warm skin folds. These symptoms usually worsen over a few days and are referred to as trombiculosis. Unlike the harvest mites found in East Asia and the South Pacific, which can carry a serious illness called scrub typhus, the UK variety does not transmit diseases. In the United States, however, chigger bites have been linked to a condition known as "summer penile syndrome," which involves swelling and pain in the genital area. According to the Mayo Clinic, these red, itchy welts typically heal on their own within one to two weeks. The NHS recommends applying a cold compress, using antihistamines, and avoiding scratching the affected area. If symptoms persist or are accompanied by other issues like stomach pain or fever, it is advised to seek medical advice. Prevention is the best approach when it comes to harvest mites. Covering exposed skin while walking in areas where mites are common can reduce the risk of bites. Dogs are particularly vulnerable, as they often explore tall grass and overgrown areas where mites live. Pet owners should watch for signs like excessive scratching, licking, or redness on the skin. In some cases, dogs may experience symptoms such as vomiting, diarrhea, or lethargy, which could indicate a rare condition called seasonal canine illness (SCI), linked to harvest mites. Using soothing shampoos with ingredients like Ophytrium can help calm the skin, while chlorhexidine-based shampoos can prevent infections from broken skin. Keeping pets up to date with flea treatments may also reduce their risk of encountering these tiny pests.