Bonide Mosquito Beater Granules repel mosquitoes for up to 3 weeks! Mosquito Beater is non-toxic and biodegradable. Its pleasant scent comes from citronella oil, garlic, geranium oil, cedar wood oil, and lemongrass oil. Easy-to-use shaker applicator. Always read and follow label directions. 8 oz. package covers 1500 sq. ft.