logo

2015 Archived Messages


Click on the week you require.
To return to the main Archive index, click the button at the bottom of the page.
Links to all the Photos and other images accompanying the list messages can be found on the Images page.

MONTHDATEDATEDATEDATEMONTHDATEDATEDATEDATE
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

22—31 October

From: Andy Mckeown
To: Orchid Talk List
Subject: Bubble wrap
Date: Sun, 25 Oct 2015 12:30

Some years ago I insulated me orchid house with uv-stabilised bubble wrap
and now it needs replacing. Originally I found a a company that supplied 3
metre wide rolls but now the widest I can find is 1.5 m. I can't find my
original receipt and I wonder if any of you know where I might get what I
am looking for?

Andy

-------------------------------------------------------------

From: Geoff. Hands
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Sun, 25 Oct 2015 14:10

At one date after I moved to Dorset (2004) I allowed myself to be persuaded that uv treatment was not worth the extra cost. Wrong. The untreated stuff turned to confetti too soon, and apart from the need for replacement, and the extra work, made the garden a mess for ages....
When I found what I now have, which is what you are looking for, I put a copy of the invoice in my intray, to make it easy, next time around. I have just gone to look for it , to provide your answer, and- alas- the copy has faded to be unreadable.
If and when I read the answer to your question, I shall have to engrave it in tablets of stone........

Geoff

Sent from my iPad

-------------------------------------------------------------

From: Tom
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Sun, 25 Oct 2015 14:40

fargro or monro agriculure supplies

-------------------------------------------------------------

From: Htide
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Sun, 25 Oct 2015 14:50

I doubt that it is stocked any longer Andy, nearly 10 ft wide is rather
awkward for most people to manage. If I do find any will let you know

Maureen

-------------------------------------------------------------

From: Richard Baxter
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Sun, 25 Oct 2015 19:15

Andy
I have just checked and LBS Horticulture still do the UV treated in 30/48/60 and 96 inch widths. I have used theirs previously
Mine has just gone this year after 6 years. I have made the decision to line my greenhouses with Polycarbonate twin wall. Being cedar greenhouses it is fairly straightforward.
Richard

-------------------------------------------------------------

From: Geoff. Hands
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Mon, 26 Oct 2015 13:10

It (3 m) was the dimension of this material as manufactured. It was then slit to make two 1.5m widths. The full width was used in some polytunnels, but nowadays I think the tunnels, e.g. for strawberries, are much wider , and I don't know what they use for them.

Geoff

Sent from my iPad

-------------------------------------------------------------

From: Andy Mckeown
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Mon, 26 Oct 2015 15:00

Thanks to all of you for your help. Richard, my greenhouse is wood too
glazed with triple wall polycarb. This is for another layer on the
outside. I was certain that LBS was where I got it from originally but I
couldn't find it on their web-site and I couldn't find the invoice. In the
end I did manage to track down the invoice with the product reference
number on it.

It seems to be a problem with their search engine. You either need the
product code to track it down or to know that they call it "bubble film"
rather than bubble wrap I will give them a bit of feedback on that.

I think they are a good company to deal with and the last lot I got is
still on the outside of the greenhouse after 5 years. It is now starting
to tear so needs replacing. Yes Geoff by now had it not been uv stabilised
it would have been spread over the Mendips like so much confetti!

Now all I need is a fine still day to do the job.

Andy

-------------------------------------------------------------

From: John Dennis
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Mon, 26 Oct 2015 19:10

Hi Andy,
I would imagine that you can get it from Simply Control, but shipping from Scotland might be expensive. I did buy my first lot from them, but I think it was the 1.5 meter version. It is also available in many garden centres these days, but you need to check the size.
Good hunting,
John

Sent from my iPad

-------------------------------------------------------------

From: Richard Baxter
To: Orchid Talk List
Subject: Winter shading
Date: Mon, 26 Oct 2015 19:50

As mentioned in my response about bubble insulation, I have just suffered the confetti effect and decided to take the plunge with mulitwall clear polycarbonate.
Once the old stuff was completely down I had a sudden realisation about how much light it had been keeping out. I expected a diffusing effect but not such decrease in light. I had taken my shading off a few days previously as always during October- I use the white shade material with aluminium strips, outside the greenhouse.
Now the polycarbonate is fixed inside, the increased light level remains incredible so I wonder whether I should leave shade on all year. It looks like some leaves have got burnt during recent sun while there was no insulation at all.
My other greenhouse still has UV bubble which will last this winter, but walking between the greenhouses one really notices the difference.
What do others do when polycarbonate insulation is fitted?
Richard

-------------------------------------------------------------

From: Tina Stagg
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Tue, 27 Oct 2015 14:15

Andy, do you really need all this insulation? With bubble wrap as well as triple wall you must be cutting out a lot of light in the winter for very little extra saving.

Tina

-------------------------------------------------------------

From: brian gould
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Tue, 27 Oct 2015 21:05

Hello Andy
The product code for a 50mtr roll of large bubble wrap from LBS is
BF24. The price is £86.75 + vat. Postage is £4.95 + vat. Phone is
01282 873333
Brian

-------------------------------------------------------------

From: Horace Geoffrey Hands
To: Orchid Talk List
Subject: Catasetums, and all that.
Date: Thu, 29 Oct 2015 09:25

I have thought once or twice, that List at Orchid talk was dead or dying. and then occasionally we get a flicker of life again; so here are a few pics of the latest new flower in my greenhouse, maybe to give something to talk about ?

Catsetums are the generic group for apparently way-out crosses. This one is Catasandra Jumbo Express ‘ Jumbo Golden Elf BM/TOGA. The cross is Galeandra devoniana x Catasetum fimbriatum.

The award − BM − Botanical Medal ( I expect) is in recognition of the difference in parents, making this a cross of botanical interest. TOGA is − I suppose, Taiwan Orchid Growers Association, since Jumbo Orchids , the breeder , is in that country.
Orchidwiz illustrates this clone, but shows slightly different colouring, with a band close to the frilly edge rather redder than is faintly visible on my plant. Probably cultural − see below.

The flowering bulb − the very latest growth − started off about July this year, when the larger bulb behind it − which started much earlier this year, completed its growth ; that larger bulb has yet to flower.Maybe it will, and have better (?) coloring.
I had been struggling with this group of orchids, succeeding with a few , failing with most , for several years, until I realised that they need much more heat than my greenhouse normally provides. Then − maybe in May or June this year, I built a small enclosure of clear acrylic sheets in the greenhouse, put some extra heat in there − to give a night minimum ( stat controlled) about 19 or 20 C., and since then they have all grown better and better.

Today I notice several plants have just started to show leaves yellowing ( they are annually deciduous, mostly ) so I guess I will dry them all off, as November proceeds, and turn off the heat for a couple of months − they will then be at the temperature of the rest of the greenhouse − night minimum of 12, and then I'll turn up the heat again at middle of February to try and get them off to an early start for a longer growing season.

pps − ; these are all male flowers − which is all I want ; female flowers of most catasetae seem to be virtually identical, and are usually lumpy green objects. The sex is due to the temperature at some point in bud formation − I think it is female from temperatures much higher than mine.

geoff

-------------------------------------------------------------

From: Tricia Garner
To: Orchid Talk List
Subject: Re: Catasetums, and all that.
Date: Thu, 29 Oct 2015 12:25

Yes, the List has appeared moribund although just lately there has been
some welcome activity. I decided in September to withdraw the Digest option
given the slow traffic and moved the digest subscribers to the main list.
I've never understood the attraction of Digests anyway.

I do like your Catasandra, as I have been interested in Catasetum,
Cycnoches and the like for a long time. Had a Galeandra some years ago
which didn't survive. It would be good to have details of the enclosure you
have created.

Tricia

RAM disk is not an installation procedure.

-------------------------------------------------------------

From: Richard Baxter
To: Orchid Talk List
Subject: Winter shading
Date: Thu, 29 Oct 2015 19:15

Going on from the bubble insulation thread, I mentioned that I have almost finished ditching my old bubble for twinwall polycarbonate.
Removal of the shading in October (I use the white stuff with aluminium strips) always lets in welcome light during winter months. What I did not realise is how much light the bubble was keeping out.
Once removed it was good to have full light again, and I expected that the polycarbonate would reinstate some winter light reduction too. How wrong I was − during the recent sunny days light has been almost as intense as without anything at all.
I now wonder whether I should leave my exterior shade on all year having lost the light protection which the bubble afforded during winter.
What do others do when polycarbonate twinwall has been installed?

Richard

-------------------------------------------------------------

From: John Dennis
To: Orchid Talk List
Subject: Re: [OrchidTalk] Catasetums, and all that.
Date: Thu, 29 Oct 2015 19:45

Hi Geoff,
Very nice flower. I really enjoy growing Catasetinae. I have five in various stages of spike development at the moment. I have been waiting for Catasetum saccatum to open for months. However mine might be a bit slow because I do grow them cooler. They do enjoy a lot of light and most people grow them right up in the roof of the greenhouse with copious amounts of feed and water during the growing season. I have about 12 different plants and I noticed that you found quite a few on the Laurence Hobbs stand at the BOS Autumn Show. I think that under ideal conditions they can flower a couple of times a year. My Ctsm. tenebrosum usually flowers twice a year. Many of them are really beautiful and many are just weird flowers. I grew mine on a bright warm bench in my greenhouse through Spring and Summer, then about 6 weeks ago I moved them into a warm conservatory. I have extended my central heating into the conservatory and keep the heating on most of the time now that the cooler nights have set in. I have a thermostatically controlled valve on the radiator which I set to about '30% on'. Then in the hall of the house I have a radiator with no stat, on the wall near this I have a room stat set at 20Deg C. and I leave the heating on 24 hours a day. On the conservatory radiator I have six terracotta saucers and in each saucer is a Catasetinae pot. I am able to keep them wet at the moment although they will soon start to go into rest. A small amount of water in the saucer seems to help.
I think that the species grow only in South America but Jumbo Orchids grow many Hybrids as does Fred Clarke of Sunset Valley Orchids. Do you know of other places in the world where they grow?
See you soon,
John

Sent from my iPad

-------------------------------------------------------------

From: Geoff. Hands
To: Orchid Talk List
Subject: Re: [OrchidTalk] Catasetums, and all that.
Date: Fri, 30 Oct 2015 13:30

According to Arthur Holst (author of the only specialist book on Catasetums, known to me ) they can be found anywhere between the tropics , which means from Mexico in North America, down to Uraguay in South America. He also says, if you find palm trees by a river, anywhere in that area, there will be Catasetums there.....

As to hybridists, Jumbo have done by far the most crosses,but there are smaller scale operations in USA, including Hawaii,and Schmidt in S# Paulo (?) does a bit.
Unfortunately, no sane trader in USA will think of coming to UK and generally they have so much home trade that they don't want to export at all.

And also unfortunately for me, since I would be happy to go to them − as I have in the past ( before my interest in Catasetae) USA is not possible − only yesterday I spent all afternoon on the telephone trying to get travel insurance for a cruise in January 2017, visiting the Caribbean and a few USA ports, and I got just one quote , at #3500 for the two of us, for a 5 week absence from home , the reason being that I shall be 85 and my wife 88, and insurance companies are worried about the high cost of medical treatment in USA and what they see as the likelihood of it being necessary because of our age.

It is only North America which is quite so bad − we shall be in Brazil in January 2016, and although I don't expect to be near Schmidt, there maybe others I can sneak into ...and the insurance bill for that is nowhere near as much.

Cheers for now

Geoff

Sent from my iPad

-------------------------------------------------------------

From: Andy Mckeown
To: Orchid Talk List
Subject: Re: [OrchidTalk] Bubble wrap
Date: Fri, 30 Oct 2015 14:15

Tina, I don't know if it sounds a lot to me but I do know from practical
experience that I am more likely to have a bit of leaf scorch than see any
ill effect from lack of light. I think I grow in fairly high light
conditions. The position − up high in the Mendips and not near any
buildings will have an effect. The roof is 3metres + to the ridge so
there's plenty of room for high-light plants hanging up.

I think that the limiting factor in the winter daytime for most of us is
more likely to be temperature than light (as it is outside). By good
insulation I get a better temperature rise in the daytime without (totally)
breaking the bank and so more of the light can be utilised.
Don't know if this is true or not but it seems to work!
Andy

On Tue, Oct 27, 2015 at 2:19 PM, Tina Stagg wrote:

> Andy, do you really need all this insulation? With bubble wrap as well as
> triple wall you must be cutting out a lot of light in the winter for very
> little extra saving.
>
> Tina

-------------------------------------------------------------

From: Tina Stagg
To: Orchid Talk List
Subject: Re: [OrchidTalk] Winter shading
Date: Fri, 30 Oct 2015 14:45

I keep my shade cloth #curtains# tied back during the winter, from the end of October, ready to use if necessary by the end of February.

Tina

-------------------------------------------------------------

From: Geoff. Hands
To: Orchid Talk List
Subject: Re: [OrchidTalk] Winter shading
Date: Sat, 31 Oct 2015 09:05

Light is so difficult to judge, because ones eyes get accustomed − or of course, as we get older, our eyes get less sensitive (?) and we fail to see the differences which are there…. (maybe)
The only way to be quite sure is to use a photometer − light meter. When I do, I am surprised at the difference between the light falling on leaves in different parts of the greenhouse,, never mind with or without shade. Also, I have found that cleaning the inside of the glass can give me as much as a 40% (!) increase in light , but then I do a lot of spraying of hanging plants, and this does encourage the growth of algae.
If you have not got a photometer ( the one I use measures Lux or fc, and cost about £65 many years ago ) you can use a camera, providing it is one which tells you what exposure it is calculating. I’m not sure that modern digital cameras do this ! If you can see what it is calculating you can find a conversion factor somewhere on the ‘net which will give you the equivalent in Lux.

geoff

-------------------------------------------------------------

From: John Dennis
To: Orchid Talk List
Subject: Re: [OrchidTalk] Catasetums, and all that.
Date: Sat, 31 Oct 2015 11:05

I did get some lovely hybrid examples through Sam Tsui in the USA. He regularly exhibits in Europe as well as Westminster and is very happy to ship to us from Europe. The plants that he supplies are of very high quality. The six that I bought from him this year came to me from Germany, but he bought them from Fred Clarke of Sunset Valley Orchids in California. Fred has some incredible examples on his web site.
I had tried to get plants from Fred Clarke before but he was not interested, probably because he never visits Europe. Anyway Sam is a great source. Brian Gould put me on to him and he has purchased other really nice Orchids varieties from him.
I really envy you your lovely trips abroad but the Insurance for USA Trips is a shocker. When we were younger, Self Insurance was OK because the risk of needing attention was relatively slight, but as we age it is very important to get good cover. A period of hospitalisation and an operation in the USA would set one back an enormous amount of money.
My friend wants us to visit them in the USA but considering the major ticker op that I had about eight years ago, I think that I could not afford the insurance. I will have to investigate because there will come a time when we feel obliged to visit.
Helen Millner's macro photography at the monthly BOS Meeting last night was stunning and she gave us a really nice presentation. Now there's something for you to get your teeth into Geoff. She gave Derek some copies of her leaflet "Pollination and beyond". did you get hold of one? It contains some good references, should anyone want to try "Electronic Image Stacking" with their macro photography.
Regards,
John

Top

button.png - 22Kb
Archive Index


©Orchid-Talk
email.gif - 2501 bytes