Death to Black Widows
Monday September 3, 2012
What is the best pesticide for killing black widows?
Based on their history of success I think that the synthetic pyrethroids still are excellent products for spiders of all kinds. We do have to keep in mind, though, the new labeling on all pyrethroid products and how this may affect our application. There are now restrictions on how much of the exterior surface of a structure can be treated, and this now allows only "spot" applications above that 3 feet above grade level. Since a spot is an area no larger than 2 square feet, as defined by EPA, the use of a power sprayer to treat for spiders may not be the most manageable way to apply the products. The new labeling does not further restrict applications to turf and ornamentals, so if the spider problem happens to be on and within shrubbery... Read more
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Please note, Mr. Pest Control is answering questions supplied by PMP customers across North America. His answers are generated from industry and manufacturer-provided information. The answer may not be specific to the laws and regulations for your State, Province, Territory or Country. In addition, products mentioned may not be registered and or available in all areas. Always check with your local Univar office for specific information to your area. Always read and follow label directions.