Don't use Neem oil (against white flyes) if you want to smoke leaves, its so awful lol and I sprayed like mad on the whole plants hahahahahaa
You have a choice, spray Neem and smoke awful and strong scent of crap, or smoke leaves full of flying little critter eggs ahahahaaa
FILE: WHITEFLY
Description: sweetest but deadliest critter
White flyes can be fought only with sticky yellow neutralising devices and random tactical field assaults.
White flyes are chaotic, but precise and fast flying army. Just keep their population reasonable, spiders are good allies for ground tactics, and also some flying units for air/ground manuevers.
Pirate bug feeding on whitefly nymphs
"
Whitefly damage by feeding
Whiteflies feed by tapping into the
phloem of plants, introducing toxic
saliva and decreasing the plants' overall
turgor pressure. Since whiteflies congregate in large numbers, susceptible plants can be quickly overwhelmed. Further harm is done by
mold growth encouraged by the
honeydew whiteflies secrete. This may also seriously impede the ability of farms to process cotton harvests."
"
Nonchemical means
Biological methods have also been proposed to control whitefly infestation, and may be paired with chemical methods. Washing the plant, especially the undersides of leaves, may help reduce the number of the pests on the plants and make their management by other methods more effective. Whiteflies are also attracted by the color yellow, so yellow sticky paper can serve as traps to monitor infestations.[SUP]
[9][/SUP] Dead leaves or leaves that have been mostly eaten by whiteflies can be removed and burned or carefully placed in closed bins to avoid reinfestation and spreading of the disease."
http://en.wikipedia.org/wiki/Whitefly