Which Bacillus Thuringiensis For Fruit And Veg?

Community Community Garden Problems Pests Which Bacillus Thuringiensis For Fruit And Veg?

This topic contains 6 replies, has 3 voices, and was last updated by  Sausage 1 year, 2 months ago.

Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • #70498

    Sausage
    Participant

    More than one subspecies of Bacillus thuringiensis has been isolated. Kurstaki is the type used in Dipel, Solabiol and Bayer which are all available from mainland Europe. I have been told the kurstaki strain was isolated in the UK but it’s not easily available there. Aizawai is the strain in Xentari, which is more easily available in the UK.

    Which strain of bacillus is best for protecting fruit and vegetables, kurstaki or aizawai?

    #70501

    charles
    Moderator

    I did not know this, have always used Kurstaki

    #70504

    Sausage
    Participant

    It’s odd really. Xentari’s marketed for box caterpillar and some say they use it on fruit and veg but I haven’t seen the results to know if subsp. aizawai works. Thank you very much for replying so quickly, will stock up on kurstaki while we’re still in the EU.

    #70505

    Sausage
    Participant

    Kentucky College of Agriculture have a useful paper here http://www2.ca.uky.edu/agcomm/pubs/id/id156/id156.pdf if that helps.

    #70516

    charles
    Moderator

    Thanks for that link Sausage, really helpful

    #70519

    Gwynleg
    Participant

    Hi. Does BT work for common and garden cabbage butterfly’s/caterpillars please? I was pleased to see it works for the diamond back moth- are there other UK pests that it works for?

    Finally where do you get it from please?

    #70520

    Sausage
    Participant

    Different strains of Bt target different types of insect. Kurstaki and aizawai both affect lepidoptera including cabbage whites but also other types of butterflies and moths. That plus evidence of resistance building up when over-used is possibly why it still isn’t licensed for home gardeners in the UK.

    It’s available from several sellers on Ebay and Amazon under different brand names. There might be a couple more sources mentioned by other members if you use the Forum search.

Viewing 7 posts - 1 through 7 (of 7 total)

You must be logged in to reply to this topic.

Forum Info

Registered Users
3,843
Forums
10
Topics
2,939
Replies
10,415
Topic Tags
567