Situation Update: Locust Crisis in Madagascar - 31 January 2014
Fledging (emergence of young winged locusts of the first rainy season generation after completion of the hopper development) started during the last ten days of November 2013 and continued throughout December in both invasion and outbreak areas. In the medium part of the invasion area, which became too wet for the Migratory Locust, the locust populations that escaped control operations formed light and dense flights, which moved towards the coastal areas or the outbreak area from early December.
In the outbreak area, hopper and adult locust populations were present over huge surfaces but at relatively lower density than in the invasion area; they were also much less homogeneous than in the invasion area but will soon group due to changes in weather and ecological conditions. From the 10th January onwards, mating followed by egg-laying was in progress mainly in the coastal plains of the invasion area and in the low lands of the outbreak area.
The most infested areas of Madagascar were located in a stretch of approximately 900 km length and 80-100 km width, from Maintirano to the south of Toliara. First hatching was observed between Morondava and Toliara during the second ten-day period of January.