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CHAD 2012. Control operations against populations of desert locusts

SENEGAL 1993. Desert locusts

CHAD 2012. Control operations against populations of desert locusts

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A group of mature copulating locusts, sheltering during the midday heat. They later descended to the ground and laid in dense groups. - - Desert Locust Campaign. 1988 was a year of a major upsurge of the plague of the desert locust (Schistocerca gregaria) on a scale unknown since the mid-fifties. Swarms escaping from the spring breeding grounds in northern Africa, crossed the Sahara on a wide front to invade all the Sahelian countries from Mauritania and Senegal, to Chad and the Sudan. From July onwards, locusts matured and bred, giving rise to numerous hopper bands and new generation swarms. Control operations, coordinated by the Emergency Centre for Locust Operations of the Food and Agriculture Organization of the United Nations (FAO), were often spectacular but were not able to prevent all escapes. Newly formed swarms emigrated from the sahel, some back to the winter-spring breeding grounds in North-west Africa, but many were carried by winds to the Atlantic ocean. Most were drowned, but some reached the Caribbean islands, for the first time in recorded history.

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