According to some reports, the cyclone that struck East Africa in May released enough water to allow vegetation in the desert to grow for six months - enough for two generations of locusts to spawn. Each successive locust generation translates to an exponential increase of 20-fold. As the frequency of cyclones increase, this provides more breeding time for further locust generations to form. This is particularly worrying because the ability to deal with a locust threat is directly proportional to their numbers. Locust swarms that are not identified and destroyed at their early generations, could grow beyond the control of humans, causing widespread devastation to vegetation.
Locust migration patterns are also unpredictable making it very difficult to devise a plan to stop them, especially when they travel through remote areas. Pesticides can be sprayed, but such a strategy will need to be pre-emptive in nature. A failiure to tackle the problem early could have devastating consequences.