[panick503]

Originally Posted by Nader

Can you link that study that found it wasn't effective? Definitely worth looking into

btw, I do not care for neem much at all. And so many people here spray it on their buds, it's just nasty. If "Chromobacterium subtsugae strain PRAA4-1T and spent fermentation media" was used on their buds instead of neem, i bet that it would smoke better and cleaner

No, I can't remeber exactly where I read it, but I remember it was written in the last year... this was not effective against broad mites mind u. It was a short type study I've seen universities put out where they take a certain number of miticides, some toxic, some not, and after testing them for a period of time, rate the efficacy 1-5. Grandevo got a 1 for broad mites, as opposed to, say, pylon got a score of 5. Now, that's better than having no effect on them, but not great at all. But, grandevo can be used with predators, and can safely be used in flower, so it can definitely have a place in an IPM program. I just decided to go with OG Biowar...

[sprinkl]

It would make sense that using bacteria works better in an organic environment which isn't hostile to these bacteria. Dunno if they can survive or reproduce in minerally fed environments?
That said, growing organic removes most of the need for pesticides, at least IME. Let nature do its work, predators enough as long as you don't create a hostile environment... It's also noteworthy that plants with low Brix levels get attacked first, and high Brix can give immunity to pests.

[panick503]

Originally Posted by sprinkl

It would make sense that using bacteria works better in an organic environment which isn't hostile to these bacteria. Dunno if they can survive or reproduce in minerally fed environments?
That said, growing organic removes most of the need for pesticides, at least IME. Let nature do its work, predators enough as long as you don't create a hostile environment... It's also noteworthy that plants with low Brix levels get attacked first, and high Brix can give immunity to pests.

What? Yah I'm sure the bacteria cares where the plant gets its nutrients from... let's not turn this into a debate on how much better growing organically is than everything else. Why is it that so many organic growers have a holier-than-tho attitude?

[Nader]

OG Biowar did not significantly affect mites or thrips when I used it at a facility I worked at in 2013-2014

[ghostmade]

:LURK:

[Mikell]

Eh, was going to post the study mentioned above and a few others, but thought to let this play out, and am concious of my frequent ability to respond negatively. It does appear Grandevo is more suited towards targeted pests, and the claims of efficacy as an acaricide are more mild fringe benefit than a sole means of control. I'll post up if I get the desktop going, tablets are a poor substitute.

[Nader]

well that blows

[panick503]

Sorry bud... at least I'm guessing u didn't buy the 5 lb. bag like I did... incidentally if anybody wants a 5 lb. bag of grandevo to try out...

U know I was just thinking, I've seen in the same type of study I mentioned above the miticide Kontos only received a score of 2, and people have reported great results using it as a preventative measure against broad mites. Just a little food for thought on what that score of 1 might mean for grandevo... of course Kontos is a systemic miticide as opposed to an ingestion/stomach poison type one...

[Limeygreen]

This company also makes regalia max which is a great tool for suppressing powdery mildew, but it's quite pink. Grendevo is also supposed to kill beetles and such when I talked to their sales rep a couple years ago.

[Mikell]

https://www.google.ca/url?sa=t&sourc...WeY2_fcbm-JUbg

https://www.google.ca/url?sa=t&sourc...CwR_pDvBz_HzCg

Bear with me, desktop is still on the fritz. Both links are direct downloads of PDF files. Can't be fucked to figure out how else to link with this half pint 'puter.

It looks like Marrone is overstating Grandevo for the control of mites, broad and TSSM. It is effective against other pest though, and would be handy to have in reserve.