The Flory-locust machine
The Flory-locust machine was a horse-drawn implement used by farmers to exterminate locust populations. This device was employed with moderate effect. Locusts would be startled into jumping as it rolled over them, and crushed in the moving belts.
Report of the Commissioner of Agriculture for the year 1877 (Washington, District of Columbia: Government Printing Office, 1878) Plate IX, after page 264