2015 Archived Messages

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January 1-7 8-14 15-21 22-31 February 1-7 8-14 15-21 22-28
March 1-7 8-14 15-21 22-31 April 1-7 8-14 15-21 22-30
May 1-7 8-14 15-21 22-31 June 1-7 8-14 15-21 22-30
July 1-7 8-14 15-21 22-31 August 1-7 8-14 15-21 22-31
September 1-7 8-14 15-21 22-30 October 1-7 8-14 15-21 22-31
November 1-7 8-14 15-21 22-30 December 1-7 8-14 15-21 22-31

1—7 August

From: Lynn Smith
To: Orchid Talk List
Subject: Re: Neofinetias
Date: Sat, 01 Aug 2015 10:05

Nice lot of plants, I am just starting to build a collection of these and was wondering how to do a special shelf closer to the roof and thanks to you
I have an idea that Tony can now put into practice.


From: Mark Griffiths
To: Orchid Talk List
Subject: Re: [OrchidTalk] Indoor Phal problems
Date: Sat, 01 Aug 2015 11:00

hi, I have a small house collection of phals. Nearly all have shown a problem for years − but they linger on. I keep water off the leaves and generally water in the morning in the winter or early afternoon in the summer − never the evening.

Can anyone identify what it is − not just the brown spot but the other mottling? Is it a virus, bacteria or fungus? Mixture of both? For bacteria and fungus cures − what is available in the UK that is reasonably easy to obtain? Any tips for prevention?

thanks in advance, Mark


From: Geoff Hands
To: Orchid Talk List
Subject: Re: [OrchidTalk] Indoor Phal problems
Date: Mon, 03 Aug 2015 06:55

The black spot is bacteria, or perhaps , to be pedantic, rot caused by bacteria which entered the cells via a place where the cells were damaged in some way − a knock against a corner of a table perhaps, or an insect puncture. It is unlikely to spread far and fast, especially if kept dry. A pinch of cinnamon from the spice cupboard will dry it up and help, but it will never heal.
Personally I water my plants when I see that they are dry , at any time of day or night. Anything else is just an old wives tale. What happens in the jungle ? It rains at any old time....
No cure for virus, except dustbin. Ph allies are cheap, so if. Plant is viruses, the no risks. But this is not virus. Have never seen a viruses phal. anyway ! Cymbidiums, yes, cattleyas, frequently, but Phals no.
But I don't like all those white flecks. What is it ? I would sponge off , soap and water better than nothing − not Fairy liquid btw, that contains glycerine which clogs up the stomata and stops the plant breathing.

Sent from my iPad


From: hilary hobbs
To: Orchid Talk List
Subject: Re: [OrchidTalk] Indoor Phal problems
Date: Mon, 03 Aug 2015 11:20

Hello Mark

It is often difficult to diagnose marks on Phalaenopsis leaves.Have you ruled out pests? Is the brown mark a Scale insect? they like Phalaenopsis. Also have you checked for False Spider mites, they are very small and hard to see. If you are sure there are no pests ,it could be fungal infection. I am not sure what the mottling is ,it could be a virus.The problem is that it is difficult to diagnose a virus from appearance alone, plants need to be tested in a laboratory and that is expensive.Do the plants look unhealthy? usually they do if they have virus.
I would recommend you spray the plants with SB Plant Invigorator and Bug KiIller.Spray at weekly intervals for a few weeks.It is non toxic and kills most pests.it is available from Peter White. If that doesn#t help you could try a Fungicide . As a last resort think about getting them checked for virus I have details of a good laboratory in York. I have had Phalaenopsis plants checked there and some did have virus.

Good luck



From: hilary hobbs
To: Orchid Talk List
Subject: Re: [OrchidTalk] Indoor Phal problems
Date: Mon, 03 Aug 2015 12:10

I forgot to mention that if the brown marks are wet ,it is probably a bacterial or fungal infection dust with cinnamon and keep the plants drier.



From: Tina Stagg
To: Orchid Talk List
Subject: Wanted
Date: Thu, 06 Aug 2015 18:30

Hello everyone

Does anybody have a bit of Isochilus carnosiflorus they could spare/sell/swap? Or do you know where in the UK/Europe I could get any?

There is a picture of the ‘Summer Solstice’ clone on the AOS website and it does look worth trying. I do have a few odd corners to fill in my octagonal greenhouse now that the replacement long one is finally up and running – or, to be more accurate, running water but I hope to get that fixed soon.

Many thanks, Tina


From: Mark Griffiths
To: Orchid Talk List
Subject: Re: [OrchidTalk] Indoor Phal problems
Date: Fri, 07 Aug 2015 13:45

hi, just wanted to say thanks for the replies. I'm cleaning off the leaves with the Plant Invigorator and seeing if that helps. Interestingly two of the species Phals are completely free of the problem − and some of these are parents of the Phal hybrids...
once again, many thanks! regards, Mark


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