Zenprox Aerosol will kill those spiders that are sprayed directly as it is a contact kill only. For residual control you would need to apply a product like Cyzmic CS.
Zenprox Aerosol provides a quick kill which does not transfer to other insects.
Zenprox is really more of a contact kill aerosol and is not meant to leave a long term residual, it only lasts about 3-4 days depending on the surface ot which it is applied.
Bedlam and Bedlam Plus offer a residual and a contact kill. The residual killing power will last for up to two weeks. Zenprox is a contact kill aerosol and is not meant to leave a long term residual, it only lasts about 3-4 days depending on the surface it is applied to. Either product should be applied after a heat treatment or steam application to cracks and crevices to allow the product to work during the residual period.
Bedlam Plus offers both a residual and a contact kill. The residual killing power will last for up to two weeks. Zenprox offers a contact kill only and is not meant to leave a long term residual. It only lasts about 3-4 days depending on what type of surface it is applied to.
The straws for aerosols such as Zenprox Aerosol will be a very tight fit so we typically suggest trying to put it in at an angle to start rather than just straight on, and gripping the straw with a pair of pliers to help push it in as a normal hand grip often isnt strong enough.