Swarms of mosquitoes are so bad around the Río Tempisque that the insects are killing animals, according to a lawmaker.
The lawmaker, Suray Carillo, asked that the government declare a regional emergency in the communities of Bajo Tempisque.
The Frente Amplio lawmaker said that an emergency decree already was in the works with the Ministerio de Salud.
The river has become so low that it has created breeding spots for mosquitoes who attack animals and humans continually, said the lawmaker, adding that seven deer have died and that cattle are subject to continual insect attacks and are losing weight.
The area involved in is the canton of Carrillo, the lawmaker said.
The lawmaker said that the plague of mosquitoes is close to closing the local schools and that the government should take action particularly when the Día de la Anexión del Partido de Nicoya approaches. The holiday celebrating Guanacaste is July 25.