Alan from Lincroft, Nj writes
Bifen L/P granules and Talstar PL granules contain the same active ingredient, bifenthrin. The only difference is there are restrictions for certain states for each product based on a state law or manufacturer registration. They will last approximately 2-4 months once applied and watered in (which can be done prior to rainfall). Please refer to the product label for complete application instructions for the insect(s) you are targeting.
Answer last updated on: 02/01/2019