depends on where u are n how many plants u got really that fuckin chopper flies by my house like 5 times a week in the summer theres lots of lil tricks u can use like puttin other plants near them u can buy little clip on flowers from the dollar store get like pink ones or blue or somethin n clip em to the leaves lol its scary as hell watchin that thing fly over cause u never kno what theyre lookin at one time i heard it off in the distance n we were smokin bongs in my backyard n i was like yo hide the bong under the table n buddy was like what r u serious why lol but as far as i know its out there lookin for big patches not a couple plants u kno think about how much it costs in fuel to keep that thing in the air is it worth it for it to b comin after a few plants? i duno ive heard of ppl gettin popped with like 8-10 plants b4 u just gotta b smart paranoia is both ur friend and ur enemy lol