The Meridian 0.33 G Insecticide is a broad-spectrum insecticide that is effective at killing many pests in the foliage and soil. It is not specifically labeled for cicada killer wasps or wasps at all. Cicada Killer wasps thrive in disturbed environments, such as landscaped yards and places where bare soil is exposed. 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. For current infestations, you would need to use Delta dust in each individual burrow. We also like to let our customers know that the Cicada Killer wasps are beneficial insects that provide free pest control for a couple months each year. Cicada killer wasps paralyze and provision their burrows with other insects to feed their young. The beneficial Cicada killer wasps, while large and intimidating to see, are mostly harmless and there have been very few reports of anyone getting stung by just being near them. In most cases where a sting was reported, the wasps were being held or molested in some way.
You should not apply Meridian 0.33 G Insecticide or any other insecticide during rain or other precipation. You cannot control when the rain stops, so you would likely have an uneven treatment and could potentially have a lot of runoff from your application, thereby wasting the product. Meridian G will need to be watered in after it is applied to activate the granules.
Meridian 0.33 G Insecticide states to use 7 - 9 lb/5,000 sq ft on the product label depending on target pest. Each 40lb bag will cover about 20-25k square feet depending at which rate you go at
