As locusts by the billions descend on parts of Kenya in the worst outbreak in 70 years, small planes are flying low over affected areas to spray pesticides in what experts call the only effective control.

In this photo taken Saturday, Feb. 1, 2020, desert locusts jump up from the ground and fly away as a cameraman walks past, in Nasuulu Conservancy, northern Kenya. As locusts by the billions descend on parts of Kenya in the worst outbreak in 70 years, small planes are flying low over affected areas to spray pesticides in what experts call the only effective control. (AP Photo/Ben Curtis)