whitefly/knits

[florida boy 3]

hi all, i have a inside grow. been fighting white flies and knits for over a month. today is the start of the 6th wk of flowering. i've been keeping them beat down okay. i might see one of them every 2/3 days. been using neem oil and whitefly traps. is there anyway to get rid of them for good? it gets old fighting with them bastards.