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Ron from Toano, Va writes,

How long does Suspend SC typically take to kill?

I have been having a huge Wasp and Carpenter Bee problem this year. My children are too scared to step outside. They cover the bushes out front. My wife and I have counted at least 2 dozen or more at any given time. I have sprayed a 1oz to 1gal mix of Suspend SC to the bushes they congrigate on. I used about 1.5 gallons of mix onto all the bushes. I assume the pole they collect will be taken back to the nest(s) and will infect the queens, eggs, etc. What is typical time to take effect for Flying Insects such as Wasps, Bumble Bees, Carpenter Bees, etc. How long after treatment should I expect to see a reduction in the number of these insects. Also assuming proper exposure to the treated area, what is the typical time for Spiders, etc. to die?


The amount of time it takes Suspend SC to kill will depend on how bad the infestation is. It could generally take 1-2 weeks. The rate that was used of Suspend SC per gallon of water is fine. It is a residual so it does need time for it to work. This treatment can be done every 21 days outdoors.

Answer last updated on: 05/26/2015

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