Yellowjackets are important predators of pest insects. Bacteria can also be used in the place of pesticides in the biological pest control. A pesticide is a substance used to kill a pest. They are commonly used by gardeners and farmers for pest control. Snake Charmer shotguns are commonly used by gardeners and farmers for pest control. Some species are valued in their role as biological pest control agents. Gardeners find this a difficult pest to combat. The bean weevil is an important storage pest. The poppy root weevil is another significant pest. The company manufactures and sells consumer lawn, garden and pest control products. It is sometimes considered an agricultural pest. The first step in pest control is prevention. Several means of biological pest control have been investigated. Weather conditions also contribute to pest outbreaks. Hunting can be a means of pest control.