opinions so far, and some bookmarks
I had a bad infestation of a destructive root pest I believe to be from the root aphid family>>>
http://youtu.be/2x3NSMVPqIc.
It's hard for me to give a complete opinion cause this is my first round with Met 52 and have yet to harvest anything inoculated with met 52. So far I am experimenting with it in straight perlite, straight coco, and have top dressed and watered it into dynarok/hydroton.
Also, my infested plants were destroyed, and heavy sanitation was done to the infected areas, and remaining vegging plants were treated with kontos (spirotetramat), and examined under magnification and no root aphids could be found anywhere, so for the most part, for me, Met 52 is being trialled as a preventative and I hope I never see that pest again ever.
Right now Met 52 is rated for the black vine weevil, and strawberry root weevil, and mentions "other soil pests".
some things about Met 52 I've noticed so far,
1) Met 52 does not work against fungus gnat larvae, or springtails (non targeted pests that were found in Met treated coco).
2) Inoculation in coco (using Altimood's method); In coco I dissected 1 plant that had the medium infused with met 52 and thoroughly examined it throughout with magnification and none of the "white fuzz" sporing was noticed in wet coco, but there was some on top in dryer areas exposed to air. The roots where dental white and healthy, with no root aphids.
3) Inoculation in 100% perlite (6grams/gallon of media and uniformily mixied); Grows like an algae, clinging to the perlite. leaving a brown haze much like algae growth in spots throughout the perlite. No root aphids have been found in perlite so far.
4) Inoculation in dynarok/hydroton (by top dressing and watering in). Some "white fuzz" sporulation on top. No root aphids have been found in dynarok/hydroton so far.
5) I noticed none spreading airborne, it seems to stay in the medium only. None on plants or anywhere else seen, (though not tested).
6) No adverse reactions from experiment so far.
7) No root aphids found so far.<<
In these added bookmarks I've read it's rated for soft fruit and other food crops up to zero days of harvest. No chemical pesticides are being used other than the initial dose of spirotetramat (on vegging starter plants in smaller pots), but BTI and cedar oil were added to control fungus gnats and springtails that were found in the coco.
some bookmarks and some literature,
http://docs.google.com/viewer?a=v&q=cache:yvQ7fE9FfmMJ:www.fargro.co.uk/animations/Met%252052%2520Brochure.pdf+met52+9+months&hl=en&gl=us&pid=bl&srcid=ADGEESiSMIvoRAMpn2D5Z1BCktHNC8_78Zwld77aS2uLaBaTUXTGgOffPyZGxJ47CxVPZJwvbe58U1AQ6rZ0pSkhgKwgGAn3-dLGJ52z4qKGSIeaNJDVhf43STbGBVKhFbNNH_NyZjd8&sig=AHIEtbRyY3AA949wBD7mjU1tDiTe2FRLXg&pli=1