Hen lice breakout this winter - no barn involved. They were in well ventilated hen house, same as years before. I tend to think it was the weird winter with colder days giving way to thaws over and over instead of the usual steady freeze up with a brief thaw or two in Vermont. Have tried some of the newer green cleaners and sprays but nothing works very well except Orange Guard. Best at getting rid of lice though is Deep woods Off which is a chemical and decidedly not green.
As others have noted, egg production has dropped off this winter.
Is the Deep Woods Off ok for the egglayers-meaning is there a withdrawal.I wouldn't think so seeing as how we humans can coat ourselves in it but just thought I'd ask.I'm using DE right now and as my mother would say "It's like a fart in a whirlwind"