A small yard, outdoor farm without fan, I have already set the yellow traps.
I would say that (3) at the level of flies, sometimes when the bud flies from 5 to 7 flies.
I am almost coming to the conclusion that it is the fault of genetics, an unknown Paraguayan sativa or lack of ventilation, due to the yard being small, 10 to 15 m2, walled.
I saw a huge increase of white flies after the neighboring property cut a bunch of bamboo and pruned trees and then left everything on a pile on the other side of the fence. Organishield killed everything it touched but they continue to migrate. Lace wings and lady bugs have mitigated the population but I doubt anything will stop them entirely since they have a perfect breeding environment just feet away. Good luck. Make sure to report back if you find that silver bullet solution.
Tomorrow during the day, I will observe if they have recently been cut and stacked. But in my last cycle, I remembered now, that there really was a cleaning on the ground and piled up, coinciding with the increase of pests, but they were also during flowering.
I’ve never used it on whiteflies, but Safer brand insecticidal soap has saved my ass w/ thrips, aphids, and spider mites many times. It’s supposed to work on whiteflies too… according to the label.
If you spray it during flower, it’ll make all your white hairs brown/red (dries 'em out) so don’t let that freak you out too bad, new ones come in just fine.
And its just soap… so you can hose everything off & wash the soap away the next day.
The only drawback I’ve found kinda depends on bud density, thickness, & your overall humidity. For example, if you spray really early in flowering… and your stigmas dry out earlier than then normally would (b/c of the soap), you may be more susceptible to mold if its a long flowering variety, buds are dense, humidity is high, or day/night temps are far apart enough to cause condensation in the bud. From what I’ve seen w/ my grows, mold loves starting up on those first stigmas that dry out… right near the stem; mold loves growing on dead/dying shit. If you dry a bunch of them out prematurely w/ soap… there’s more places for mold to start up if your environment isn’t perfect.
Can’t say it’s the best plan… but it’s probably what I would do if insects are getting out of control in flower. Never had any issues in veg or with clones/seedlings. it works… and its not some f’d up chemical.
I’ll research this soap, thank you.
I am sprinkling the defender only on the leaves, precisely to avoid any risk of mold, since the humidity where I live has days that reaches 80 to 100%.
I use the soap in veg without any worries. I dip cuttings in it before rooting w/ no problems.
Just something to be careful about in flowering. I hope it works for you. I have some high humidity certain times of the year to deal with, but not 80 - 100%. That is quite a challenge. I hope you find a way to make it work buddy. Good luck!
Usually white flies will go away after a while outdoors. They have lots of predators outside and they can fly away when they get mature. I’ve never seen them stay on outdoor plants more than a month. Also putting plants that the flies would rather live on next to your plants seems to help move them away from the cannabis
Spray bottle. Water then a few drops of peppermint oil, and tea tree oil, and rosemary, and clove oil. Like 2 drops of each… you don’t need much. Mist all around everything. It’ll chase them away by the scent.
For the plants. captain jack’s dead bug works great. spinosad and pyrethrins. not permethrin. that’s the heavy duty stuff for livestock areas usually.
I found spraying the outside walls of my grow room with essential oils stopped a LOT of stuff from even wanting to come in. Yellow sticky traps near UV and Red lights helps too. gotta be able to catch those random flies that get in.
We have testimonials of Johnnys (& anonymous) MTA spray working for Whiteflies as @Chara mentioned above, combined with sticky traps for the flyers The ingredients are simple… and one purchase of ingredients will last you years likely. My total cost was $128…and i got a nice graduated beaker set, digital scale, amber glass storage bottles etc.
Thanks for the tips @Chara , @Gonzo , @cannabissequoia ! I will research this secret recipe, I am in urgent need of getting rid of these flies before the end of my flowering, I do not want to smoke flies.