Trichoderma (& treatment of Botrytis galanthina)

[Gerry Webster]

Hi Gerry, yes I used it on all my bulbs as I potted them. I usually have a low-level infection in some narcissi. This year there was none.

Thanks Anne - I'll try it.

[Alan_b]

In the UK you can now get Trichoderma harzianum as:
 
Canna AktTRIvator http://www.canna-uk.com/aktrivator
Dragonfli Growboost http://www.dragonfli.co.uk/product/ps-02 (T-22 strain)
The Nutrient Company TNC-Trichoderma http://www.thenutrientcompany.com/hydroponic/trichoderma_product/

The latter two suppliers seem to have arrived since I last looked about two years ago.

There is also a bulk (horticultural trade) product called Trianum http://www.trianum.com/en/home.html (thanks to Anne for this)

There is detailed information on Trichoderma harzianum in this database http://sitem.herts.ac.uk/aeru/bpdb/index2.htm

Edit:  Modified to correct the spelling of harzianum - thanks to John Aipassa for pointing out my error.

[John Aipassa]

In The Netherlands we also say chipping. I think in Germany they do too. As far as I know there is not a real dutch word for it.

Lina.

I stumbled upon this older post about how chipping is called in Dutch. Since we use English words all the time in our Dutch language sometimes the English word is considered to be the Dutch word too, but in this case "chipping" is not the true Dutch word for chipping. The Dutch word is "parteren".

[Brian Ellis]

I shared some of Anne's trichoderma last year and have added it to lots of snowdrops.  The most significant 'result' is that one quite sickly 'drop which was due for the bin this year if it didn't improve, looks really quite good.

[John Aipassa]

In the UK you can now get Trichoderma Hazarium as:
......<snip>....

The species is actually Trichoderma harzianum instead of Hazarium and it is the T-22 strain that has been researched the most. The brand Trianum has the T-22 strain.

[annew]

As the temperatures rise again, I'll be watering on a solution of trichoderma so that it can recolonise the plants and compost. I've got very good control of stagonospora this season.

[Gerry Webster]

Last Autumn - thanks to AnneW - I treated all my potted Narcissus with Trichoderma. Last year N. asturiensis & N. cyclamineus showed low levels of Stag infection. This year they seem to be completely clear. On the other hand, N. rupicola - which I find a difficult species & which was badly infected last year - still seems infected, though not quite as badly.

[johnralphcarpenter]

Does anyone know a supplier of Trichodowels in the UK? Or can they be imported from NZ?

[johnralphcarpenter]

To answer my own question, FAST, Farm Advisory Services Team Ltd at Brogdale Farm, Faversham, Kent have them: http://www.fastltd.co.uk/

[Alan_b]

Just a little update to day that Dragonfli have re-jigged their Trichoderma product from something that was intended to be watered-on to something that is intended to be mixed with soil or compost.  The new product is called 'Plant Boost' and is supposed to have a longer shelf life.  It still contains Trichoderma harzianum T-22. 

[johnstephen29]

I am amazed how quickly botrytis can take hold, I checked my plants in the green house on Sunday, all ok. When I checked the plants again on my day off from work a number of my pelargoniums had it on there leaves, I've been checking all the plants in there hopefully I've got it sorted.

[Maggi Young]

Yes, it can develop and spread faster than runny jam on toast!  We are constantly checking our glass house plants - which are , as you might guess, mostly bulbs -  to remove any flowers going over. A crocus flower can be covered in botrytis before it even hits the ground.

Vigilance on such matters is important - and it does pay dividends for protecting your precious plants.

[johnstephen29]

I'll have to check the again tomorrow

[Lesley Cox]

Last Autumn - thanks to AnneW - I treated all my potted Narcissus with Trichoderma. Last year N. asturiensis & N. cyclamineus showed low levels of Stag infection. This year they seem to be completely clear. On the other hand, N. rupicola - which I find a difficult species & which was badly infected last year - still seems infected, though not quite as badly.

That's interesting Gerry, that you have difficulty with N rupicola I mean. For me, it is among the easiest, growing well yearly, seeding freely and flowering from seed in 2-3 years. It's one of my most popular plants for sale, 3 or 4 in a little pot, in flower in mid spring.

[johnstephen29]

Still having problems with botrytis, it's only on a few stock pelargoniums at the moment thank goodness, just wondering if it might be better to get rid of these and play it safe.