Answer
May 20, 2019 - 08:47 AM
The normal dilution rate for Bifen I/T is 1 oz of concentrate per gallon of water. If the German cockroach infestation is very bad, I would not recommend to use Bifen I/T but to use baits and dusts such as Advion Cockroach Gel, Maxforce Magnum. Delta Dust, etc. Here is a good article on how to kill german cockroaches - http://www.epestcontrol.com/articles/get-rid-german-cockroaches/
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