Storing frames over winter

[Hivemaker.]

Certan does not hang around for long enough.

A single application will provide 100% efficacy against wax moth right up through to the following season. 100 % efficacy against the larvae of the wax moth

Eggs turn into larvae from 3 to 5 days and up to 35 days if colder...the larvae are then killed by the Certan.

 

[drex]

Thank you HM.

 

[beeno]

Eggs turn into larvae from 3 to 5 days and up to 35 days if colder...the larvae are then killed by the Certan.

That may be the theory...

 

[beeno]

Now it all makes sense

Quote
Certan™
It has been known for some time that the bacterium Bacillus thuringiensis is a specific pathogen of the larval form of moths and
butterflies. (Lepidoptera) . It kills the caterpillars once they are infected. “Certan™” is the proprietary brand name of a live culture
of the bacterium. The culture is appropriately diluted with water and sprayed onto combs. Control is effective and selfperpetuating
while there are larvae hatching and available to be infected. Winter kills off the wax moth larvae and also the
bacterium. This treatment has an appeal as a biological control; however it should not take the place of hygienic management.
Clean hives and clean equipment together with regularly changed combs should not make wax moth a problem. Varroa floors under
a bee-proof mesh have proved to be rich breeding grounds for Wax Moth and should only be in place when actually monitoring for
the presence of mites. This clearly demonstrates the control exerted by bees themselves. Floors sprayed with Certan™ monthly
during the active season have shown no sign of wax moth.
Unquote

 

[philipm]

There was a tread on here from Ukraine some time ago about using wood ash on frames over winter.Might give it a go this year.

 

[Gilberdyke John]

Now it all makes sense

Quote
Certan™
It has been known for some time that the bacterium Bacillus thuringiensis is a specific pathogen of the larval form of moths and
butterflies. (Lepidoptera) . It kills the caterpillars once they are infected. “Certan™” is the proprietary brand name of a live culture
of the bacterium. The culture is appropriately diluted with water and sprayed onto combs. Control is effective and selfperpetuating
while there are larvae hatching and available to be infected. Winter kills off the wax moth larvae and also the
bacterium. This treatment has an appeal as a biological control; however it should not take the place of hygienic management.
Clean hives and clean equipment together with regularly changed combs should not make wax moth a problem. Varroa floors under
a bee-proof mesh have proved to be rich breeding grounds for Wax Moth and should only be in place when actually monitoring for
the presence of mites. This clearly demonstrates the control exerted by bees themselves. Floors sprayed with Certan™ monthly
during the active season have shown no sign of wax moth.
Unquote

I really don't see the point of cutting and pasting your quote without giving the source.

 

[jenkinsbrynmair]

 

[Anduril]

This is where the quote came from:
https://www.google.co.uk/url?sa=t&s...fDW8QFggmMAA&usg=AOvVaw1Wg-NOdqkrir_fLQrvqo-s