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Bill from Dunkirk Md writes,

How to address digger bees? Our entire yard, about an acre, is infested with digger bees....thousands of holes. It has become a safety issue for kids and dogs. Any recommendations for a granular product for a large area?


It sounds like they could possibly be Cicada Killers. To treat Cicada Killers, you can discourage the wasps from nesting in your yard by cutting your grass on the highest setting and by adding a thick layer of mulch to flower beds during the Cicada Killer Wasp season. These wasps do not like over saturated lawns either, so over watering during their season will help prevent them. Unfortunately, there is no fool proof way to prevent cicada killer wasps. Cicada Killer wasps thrive in disturbed environments, such as landscaped yards and places where bare soil is exposed.  For prevention, you can try to use a granular insecticide such as Talstar PL  Granules in the couple of weeks before this pest is known to emerge. For current infestations, you would need to use Delta dust in each individual burrow.

Answer last updated on: 05/11/2015

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