A helicopter of the Food and Agriculture Organization of the United Nations (FAO) flies through millions of Locusts as spreads pesticide to fight against a swarm of locusts threatening to reach Amparihibe village on May 7, 2014 in Tsiroanomandidy, Madagascar. . FAO mission is to fight the locust's swarm with an insecticide. (Photo by AFP Photo/RIJASOLO)

A swarm of locusts flies over Amparihibe village and threats its fields at 20 kilometers from Tsiroamandidy, western Madagascar, on May 7, 2014. A Food and Agriculture Organization of the United Nations (FAO) mission is to fight the locust's swarm with an insecticide. (Photo by AFP Photo/RIJASOLO)

Dead locusts are diplayed on a table at a camp of the Food and Agriculture Organization of the United Nations (FAO) as FAO prepares to fight a swarm of locusts that could endanger the western Madagascar agriculture on May 7, 2014 in Tsiroanomandidy, Madagascar. (Photo by AFP Photo/RIJASOLO)

Members of the technical team of the Food and Agriculture Organization of the United Nations (FAO), prepare insecticide for a helicopter equipped for pesticide spreading on May 7, 2014 in Tsiroanomandidy, Madagascar. (Photo by AFP Photo/RIJASOLO)

Men prepare a helicopter of the Food and Agriculture Organization of the United Nations (FAO), equipped with pesticide spreading equipment to fight a swarm of locusts, before taking off on May 7, 2014 in Tsiroanomandidy, Madagascar. (Photo by AFP Photo/RIJASOLO)

A helicopter of the Food and Agriculture Organization of the United Nations (FAO) flies through Locusts as spreads pesticide to fight against a swarm of locusts threatening to reach Amparihibe village on May 7, 2014 in Tsiroanomandidy , Madagascar. (Photo by AFP Photo/RIJASOLO)

A helicopter of the Food and Agriculture Organization of the United Nations (FAO) flies through millions of Locusts as spreads pesticide to fight against a swarm of locusts threatening to reach Amparihibe village on May 7, 2014 in Tsiroanomandidy , Madagascar. (Photo by AFP Photo/RIJASOLO)

A man from Amparihibe village walks through a swarm of locusts on May 7, 2014 in Tsiroanomandidy, western Madagascar, on May 7, 2014. A Food and Agriculture Organization of the United Nations (FAO) mission is to fight the locust's swarm with an insecticide. (Photo by AFP Photo/RIJASOLO)

A farmer from Amparihibe village shows a bag full of locust which will be used to feed pigs, on May 7, 2014 in Tsiroanomandidy, western Madagascar. A Food and Agriculture Organization of the United Nations (FAO) mission is to fight the locust's swarm with an insecticide. (Photo by AFP Photo/RIJASOLO)

A member of the technical team of the Food and Agriculture Organization of the United Nations (FAO), holds a locust at a FAO camp on May 7, 2014 in Tsiroanomandidy, Madagascar. (Photo by AFP Photo/RIJASOLO)

A farmer protects his rice field from locusts by chasing away them with reeds at Amparihibe village on May 7, 2014 in Tsiroanomandidy, western Madagascar. A Food and Agriculture Organization of the United Nations (FAO) mission is to fight the locust's swarm with an insecticide. (Photo by AFP Photo/RIJASOLO)