Tiger mosquitoes have black and white stripes, are active during the day and are keen to bite. They can transmit pathogens such as the dengue, chikungunya or Zika virus. So far, there has been no evidence of tiger mosquitoes transmitting these pathogens to humans in Germany. Tiger mosquitoes breed in small artificial pools of water such as watering cans, flower pot saucers or vases in cemeteries. It is therefore advisable to replace stagnant water in such containers on a weekly basis and to pour the stagnant water onto green areas and flower beds.