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Vicki writes,

When should I apply Suspend SC? When there is rain in the forecast?

I want to spray for earwigs outside but the weather forecast is predicting rain for the next two days, then 1 dry day, and then another two days of rain. The earwigs come into the house more frequently when it's wet outside so I really want to spray but if the rain washes it all away is this a waste of time? Is there a recommended rule of thumb as to when to spray and when not to spray?


The rule of thumb when applying insecticides outdoors: You need 24 hours before and after the application with no rain. You could probably get away with just having 24 hours after spraying as long as the surface you are spraying is dry at the time of the application. If the area is still wet, Suspend SC will not be able to adhere to the surface and will wash away. If it rains right after the application, you will again have a situation where the product could be washed away.

Answer last updated on: 06/29/2011

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