Bacillus thuringiensis subsp. aizawai - better known as BT

[Zulu]

Sorry I missed this.

I am just helping those who need it for cabbage loopers.  :-)  manufacturers rep set me up with a local supplier.

Mix and use within 24 hrs is the recommended advice. It is stable for years in powdered form  , dose for all crawlies is  4-8 teaspoons per gallon.   I can do a whole hive w two supers with a quart. I mix 1.5 tsp in my quart sprayer.   Can be sprayed on active frames too , will not harm our friends. 

From my  own use 2 seasons without issue, have a few frames that are 3 seasons and also still good.
Yes on using excess on any part of your garden that might get loopers , it is a registered  product to be used by Organic farmers so no harm, works against tent caterpillars according to the literature.

If you prefer a commercial supplier, Hidhut is the only online source now.

Not a big deal for me to help keeps, my job keeps me travelling very often these days  so maybe not quite as reactive as off season, but I have stk because so many have asked. Two more go out tomorrow.

This is just a service I am happy to provide. Any qty you think you may need I am happy to send you.

[Zulu]

Back when I got mine I think I paid $15 maybe less local and of course no shipping.

 As far as harmful to bees etc it is the same as Certan b401 sold for bees in Canada. The only catch would be instructions on the application rate as one is marketed for bees and the other large spraying of farm crops. I understand at one time Sandoz had a US license for selling it as a bee application. I guess there was not enough profit margin so they let the license expire. I wonder why when you could buy the same Ag product different name for pennies?

Did not expire ,  Sandoz sold the company and Valent did not get their licenses , they had to reapply , and beekeeping was obviously a low priority. The local rep knew about the past but had never ever been asked about its use for bees.

[capt44]

I bought my BT from    http://www.Domyownpestcontrol.com 
I get my Permethrine SFR from them also.

[LazyBkpr]

What do you use the Permethrine for Capt?

[Jen]

I have a friend who is trying very hard to increase his apiary. He has wax moth pretty good this year. He pulled all the larvae/worms and webs off then put them back into the hives. I told him about freezing the frames for 24/48 hours as frames are removed for what ever reason...as a maintenance plan.

What will happen to these hives with the wax moth eggs thru the winter if he does not treat with BT?

[iddee]

Once it's below freezing, all will be fine. Between now and freezing temps, they could kill the hive out.

[Jen]

Okay, so this thread suggested that BT may be a little difficult to come by, where do I get BT?

Also Iddee, is this the stuff you told me about where one application to a frame and we won't have to treat that frame ever again?

[iddee]

Send a pm to forum member Zulu. He was selling it. I guess he still is, I don't know.

Yes, that's the stuff.

[G3farms]

Okay, so this thread suggested that BT may be a little difficult to come by, where do I get BT?

Also Iddee, is this the stuff you told me about where one application to a frame and we won't have to treat that frame ever again?

I would not go that far........if you treat them and store, good to go for many years.
If you treat them, store for however long and then use on an active hive again, after removing from the active hive I would freeze and then treat again before storage. The bees will polish the wax thus removing much if not all of the BT.

[LazyBkpr]

Well said G3.

[capt44]

What do you use the Permethrine for Capt?

A ground drench around the hives for small hive beetle control.

[LazyBkpr]

What do you use the Permethrine for Capt?

A ground drench around the hives for small hive beetle control.

   AHH, ok, that makes sense. Ty!

[Gypsi]

I don't think I got enough BT in my stored comb.  I didn't need all of it this year, went to pull some out in july and had some wax moth larva in it. Not as much damage as it would have been without bt, but more than i expected.  I will be combining bt with moth crystals as I start pulling out of freezer and storing this winter. My storage shed is on the lot with the giant elm, a lot of shade, and is not bug proof.

[Zulu]

I know it's early in the year, but I am stocking up again

If I can help ,please let me know.

My new job has me traveling to the west coast twice a month , so let me know timely and will ship out when I get back. 

Rick