How accurate are preflowers?

[dakota grown]

I've got 9 NL plants in veg for about 5 weeks now. they have been showing preflowers for about ten days or so. 5 of them are showing female and 4 are showing male. My question is, what are the chances that any of the ones showing male preflowers might actually be female. Can I just yank them now and be done with them?

 

[Damagoman]

what are the chances that any of the ones showing male preflowers might actually be female. Can I just yank them now and be done with them?

I'd say no chance.
Yank them or save in veg to use later for a seed crop.

 

[dakota grown]

Thanks for the info, I ended up pulling all but one male, keeping him around to pollinate one female so i can have a stash of NL seeds for future use.

 

[IronLionZion]

Just make sure you don't polinate the whole thing or you wont have much smoke!!