The boll weevil adversely affected southern cotton crops in this period. Some weevils have the ability to fly, such as the rice weevil. Genetically engineered Bt cotton is not protected from the boll weevil. The crops were devastated by the boll weevil in the early 1900s. Other limitations on boll weevil populations include extreme heat and drought. The cotton industry benefited from the depredations of the boll weevil further west. Landowners ruined by the boll weevil and declining prices expelled their sharecroppers. The museum has the world's largest boll weevil. Other important pests include pod sucking bugs, thrips, and the postharvest cowpea weevil, "Callosobruchus maculatus". She raises high a trophy topped by an enlarged-scale boll weevil. The crown weevil and flea beetle are proving highly effective. He was a member of the "boll weevil" and the Conservative Democratic Forum. The black vine weevil is another root pest. The poppy root weevil is another significant pest. It is a member of the leaf beetle family, Chrysomelidae, and not a true weevil.