Dan from Austin, Tx writes
I treated an area that is infested with black widow spiders and after 30 min they were still alive. What time frame can I expect to see them dead after being sprayed directly and a time frame for after they cross the residual left after it dries?
Eco PCO WP-X is not a contact kill product. The time frame it takes Eco PCO WP-X to eliminate spiders will depend on the number of spiders in the area and the other insects (their food source) in the area. It could take up to a week to see results. This product does not guarantee that the spiders will be gone forever. The product will likely need to be reapplied for maintenance every 30 days. Â
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Answer last updated on: 08/05/2018