Treating 6 week old chicks with permethrin 10 spray

[Susan1981lic]

How much permethrin do I mix per half gallon water in spray bottle. I have 28, 6 week olds and I believe 2 have mites. I know I need to treat them all and the coop along with new bedding but onsure on the ratio to use. Thanks in advance for your help.

 

[rosemarythyme]

Charts with ratios for the common dilutions: https://www.backyardchickens.com/threads/permethrin-dilution-updated-with-product-pdfs.1448295/