What should I do if I come into contact with a processionary caterpillar while hiking in Mallorca?

Encounters with processionary caterpillars often happen during spring, especially when walking through pine forests along the Serra de Tramuntana or near pine-lined paths by the Ma-10 road. These caterpillars have tiny hairs that can cause itching, redness, or allergic reactions if touched. If you come into contact with one, avoid scratching and carefully wash the area with soap and water to remove any irritating hairs.

If itching or swelling worsens or you develop breathing difficulties, seek medical care promptly—health centers in towns like Sóller or Pollensa are well-equipped. It helps to remember where you found the caterpillar in case you need to describe the location later. When exploring trails east or west of Palma, especially close to pine woods, wearing long sleeves and trousers can help reduce risk.

Processionary caterpillars are a known seasonal presence on the island’s pine trees and their nests are often visible in late winter. Spotting these warning signs can let you steer clear. These creatures play a role in the local ecosystem, so it’s best to admire them from a safe distance rather than handle them. Staying informed helps keep your trips through spots like Valldemossa or Deià safe and comfortable.