The Provincial Council of Huelva, together with the Ayamonte City Council, work every year on the control of mosquitoes. This operation is carried out all year round although the period of maximum work and fumigation is concentrated from March 1 to October 31.
The campaign aims to reduce the population of this insect, because its eradication is impossible.
The marshes that surround Costa Esuri and those closest to Guadiana, the golf course lakes, are areas more susceptible to the proliferation of mosquitoes, so this year they are being treated twice a month with products of minimal environmental impact.