Yes, Neem has many guises. The base is pressed raw unrefined Neem oil with everything in there. Then there is refined neem oil which has about 10 different names, including Neem oil, 70% Neem oil, Neem oil extract, Triple Action Neem oil, yadda yadda. Refined neem oil has had the azadirachtin removed by an alcohol removal process. Several reasons for the removal, one being that refined neem is easier to spray, another being that the azadirachtin has a short shelf life in raw neem oil (6 months), and they also remove the azadirachtin to make organic azadirachtin sprays, leaving the refined neem. There is also neem cake and other neem products.
PDX, those look like russet mites. Are they moving under the scope?
I clearly have a pretty large knowledge gap about neem/aza that I didn't know was there before. So the stuff I sprayed was pretty much just some oil to smother the little things and the soap was there to help the oil spread out, but the residue of that spray is not going to help me out with any future problems because there was no "kill chemical" in it, is that correct?
Thanks for helping me out with my problem, even though that plant didn't make it my final harvest probably won't be negatively impacted, because the spot I grow at outdoors is size limited. I have a lot more culling planned over the next few weeks as I start to see more preflowers, so I think getting rid of the Typhoid Mary was the safe thing to do in this case. The thought didn't even didn't cross mind until someone mentioned it in here, so that was really helpful too. Hopefully my other plants didn't get cooties from that clone. Seems like odds are they did though. I'll survey them at close range pretty soon and see what kind of little critters are there and decide about going to get some decent spray.
Well, yes and no. The big bug killer in raw Neem is aza, but raw and refined neem oil has other ingredients that make life tough for bugs and PM. Neem seed oil is a rather deep blend of many things, some of which they still do not know the full action of. It also retains some of the smell that repels bugs. But you would likely get nearly the same if not identical effects from using horticultural mineral oil (ag oil) as with refined neem oil. Oil sprays are great for killing and preventing PM for a couple weeks out. It also kills insects and mites, and their eggs. Hence the same, "Triple Action". They are great for cleaning up light infections of mites, whitefly, and thrips as well. Some growers in Humboldt that I know spray with oil every 2 weeks as a prevent defense, soaking the entire plants. The added advantage of oils and soaps is that the action of them does not allow for immunity over time. Mites can and will develop immunity to Aza and Avid over time, so that is why they recommend rotating their diet.
Those white round nodules look like spider mite mite eggs to me. Neem oil contact spraying will kill them by smothering them though. Another advantage of oils and soap sprays is that they kill all states of nymphs, adults, and eggs. A lot of systemic sprays will not kill the eggs on contact and will only kill nymps and adults.
Thanks, hopefully those eggs are dead. I guess I should have made note of what spot was what picture so I could go back and check on how things are progressing. I also realized that because I have preexisting spider mite damage its going to make seeing any new damage more difficult.
Well, as a rule of thumb I inspect and then quarantine and spray every MJ plant that comes onto my property with neem. If they are suspect I also spray with Avid. I have yet to have a mite outbreak. But I am pre-emptive. And I nuke 'em. I also spray any surrounding areas and potential mite host plants. On hard surfaces I also use Talstar, which has a very high knock-down rate for mites.
Spider mites are anything but sissies, and will raise absolute havoc if they are not controlled. Hemp/russet mites and broad/cyclamen mites have become more of an issue in commercial growing latelty though. They can be harder to control because they are lot smaller than spider mites and often times go undetected longer. Their small size also means that they have to be sprayed with more persistence and with more complete and better coverage to get to them. Water has to be made 'wetter' by soaps to drown them. Also as I have preached here, spray first and ask questions later. He who hesitates, gets eaten.