Raspberry guru required.

[Plot69]

I have a problem with my Raspberries. The leaves have yellow stipes. The new shoots coming out of the ground are rich green but the taller, older canes are changing to what you see in the picture.

The variety shown is autumn fruiting Fallgold but my summer ones, variety unknown, look pretty much the same.

Are they deficient in something, iron, magnesium whatever? Is there something I should feed them or spray them with to cure it?

They've all had barrow loads of old horse manure but I still feel there maybe something missing.




Many thanks.

[Plot69]

[Old bird]

I had that last year with my autumn rasps.  and a guy Jon at Blackmoor nurseries or something similar told me that it probably was a deficiency in Magnesium and to top dress them in Spring with said magnesium.

There was a thread on the site and he was very useful and appeared to know a lot too - which is unusual for a bloke!!

Old Bird

;D ;D

[Plot69]

There was a thread on the site and he was very useful and appeared to know a lot too - which is unusual for a bloke!!

Old Bird
;D ;D

Thank you for that.

But, as I'm a bloke and your not, I'll just ignore it... As blokes usually do  ;D

[Tee Gee]

Although I don't totally disagree with the magnesium advice as this is the usual approach with yellowing leaves in this case I am not so sure ???

These leaves look rather young and have recently opened so whats in my mind is the haven't attained there true colour yet. Prior to breaking leaf bud the whole leaf would be this colour and it darkens as it matures and is exposed to sunlight.


Not being an expert in this field I can only say;   I am led to believe that leaves are colourless until they start photosynthesizing so it might be just a case of immature leaves.

Another reason I don't think it is magnesium is; this deficiency generally appears on older/mature growth when green leaves start to yellow from the edges of the leaf not the ribs as in this case.

I would leave them for a bit and see if they flatten and darken in colour.

Well thats my opinion for what it is worth.

[Plot69]

Thanks TG, I'll leave well alone for a while and see what occurs.

If not and they continue to yellow I'll take Old Birds magnesium route.

Thanks all.

[calendula]

I would offer that there has been too much manure and that is upsetting the balance - fruit likes potash and I never put manure on any of my fruit  :-\

[thegreatgardener]

teegee may you should look on your website for the answer. Since you claim it is very imforative place. I  guess you will just have copy the answer there after some else gives the correct answer.

The problem is not a mineral definceny  or the new leaves would have same symtoms.
The answer very simple.  But alas I do not want people such as tee gee claiming the correct answer as there own at later date so I will. With hold the correct answer. Since I am sure the  answer will reveal itsself to orginal poster in due time.

[saddad]

I've never found TeeGee to be anything less than helpfull and informative TGG.
???

[Plot69]

teegee may you should look on your website for the answer. Since you claim it is very imforative place. I  guess you will just have copy the answer there after some else gives the correct answer.

The problem is not a mineral definceny  or the new leaves would have same symtoms.
The answer very simple.  But alas I do not want people such as tee gee claiming the correct answer as there own at later date so I will. With hold the correct answer. Since I am sure the  answer will reveal itsself to orginal poster in due time.

Is that an anagram? Doesn't matter how much I rearrange the words, add and replace comma's or full stops, none of it makes sense.

All I asked was a simple question. If you want to turn it into a slagging match then bugger off.

Tee Gee's answer is good enough for me. If it's the wrong answer then we'll both have learned something which is the main reason why most of us are here. And if I lose the odd raspberry or two in the process then I'm sure I'll get over it.

[posie]

Well my raspberry cane is doing the same thing, so let me know if you find out what it is plot69.  Mine is in a pot at the moment because I've not got the fruit section sorted up the lottie yet.

thegreatgardener:  This is the second attack I've seen from you on teegee, it's not acceptable.  This is a friendly forum where people of all abilities share their experiences and advice with each other.  People who behave like you are spoiling it, so I'm asking you politely to please refrain from making personal attacks on other members.  Thank you.

[delboy]

Quite right!

[Old bird]

Tee Gee - I agree with you!

My raspberries went completely yellow leaved - but as you say it was late last year!  I will put the magnesium on mine as they showed the lack of milerals last year.  There is not much to see yet as they always start off very pale green!

Good luck with yours Plot 69!

Old Bird

;D

[Plot69]

Good luck with yours Plot 69!

Thank you. I just got home from the allotment and the more I looked at them after reading what I googled on the web last night, the more I think it is a magnesium deficiency.

As for "Thegreatgardener" well, we are all great gardeners on here. Even the total novices amongst us are all truly great gardeners.

Not because we are great gardeners and certainly not because of some self bestowed title. But because we are all willing to impart what knowledge we do have in order to help others. And none of us are too proud to ask for help should we need it instead of giving the illusion we know it all.

I am a truly great gardener. Can I grow truly great vegetables? Yes I can. Not because I'm a great gardener but because I have the help of every truly great gardener on this forum at my disposal.

Some people are born great. Some people have greatness thrust upon them. He, I'm afraid has neither of these qualities. 

And now I'm off to buy some magnesium and a flame gun. If the magnesium works then I'll save the flame gun for use on here should I need it :) 

[springbok]

I found this article which was really interesting read ...

Environmental Causes of Yellow Leaves on Plants: Under or Over Watering, Lack of Iron or Nitrogen, and Sunburn

© Kathy Reiffenstein
Articles in this Topic    Discussions in this Topic


Sickly, yellow foliage on your favorite plant may not be a pest or disease, but rather a problem caused by environmental factors. These abiotic (non-living or non-infectious) disorders can be caused by numerous things, including climate, nutrients, and soil.

Under or Over Watering

You may look at yellowing leaves on a plant and assume that it's not getting enough water. However, the outward symptoms of both too little and too much water can be similar.

Too much water in the soil will prevent oxygen from getting to the plant's roots, thereby smothering them. As roots die, the foliage above ground starts to discolor and die. Overwatering also promotes fungal root diseases such as armillaria and phytophthora.

Under watering will cause leaves to wilt, fade in color to a dull shade, and drop prematurely. The new growth at the tips of the plant may wilt in the afternoon and then recover in the evening. If the plant is under prolonged stress from lack of water, new leaves will be smaller and the plant will become increasingly susceptible to insects and disease.

Mineral Deficiencies - Iron or Nitrogen

If a plant is lacking in iron, new foliage will be small and it will fade to a yellowish green, starting at the edges of the leaf and spreading inward until only the veins remain green. If the plant is lacking nitrogen, older leaves will uniformly turn yellow.

To correct iron-deficient soil, aerate the soil around the roots and spread an iron chelate evenly over the soil beneath the plant canopy or apply it to the foliage, according to the product label. If you regularly mulch with composted organic matter, you will eventually remedy the iron deficiency.

A nitrogen deficiency can be fixed quickly by applying a nitrate fertilizer but this will tend to promote more rapid, succulent growth, which attracts aphids and mites. An organic form of nitrogen, such as compost, which must decompose before being absorbed by plants, will prevent the excessive growth.

Too Much Sun - Sunburned Plants

A combination of too much light and heat and not enough moisture is causes sunburn. It shows up in the areas between the veins of the foliage, appearing as a yellow or brown area, and then the foliage begins to die in that area. Vegetation growing in compacted soil is prone to sunburn - one more reason to freshen your containers each season with new potting mixture.

To prevent sunburn, choose plants that are well-suited to the site where they're being planted. Don't put a shade-loving plant in bright, full sun. Containers make it easier to ensure that your plant is situated in the right conditions.

[springbok]

teegee may you should look on your website for the answer. Since you claim it is very imforative place. I  guess you will just have copy the answer there after some else gives the correct answer.

The problem is not a mineral definceny  or the new leaves would have same symtoms.
The answer very simple.  But alas I do not want people such as tee gee claiming the correct answer as there own at later date so I will. With hold the correct answer. Since I am sure the  answer will reveal itsself to orginal poster in due time.

Your so great yourself, that all your posts so far have been sarcastic and picking on someone who has done nothing but help folk.  Do not know why you have such a problem with TeeGee?  Back off mate, because there are a lot of folk here who respect his work and his helpfulness.

[Plot69]

I found this article which was really interesting read ...

Environmental Causes of Yellow Leaves on Plants: Under or Over Watering, Lack of Iron or Nitrogen, and Sunburn

I thank you for that.

We've just had a megga torrential down poor here in Peterborough so overwatering is possible however sunburn is definitely out.

I've bought some sequestered iron that I'm going to treat them with so I'll see if that helps.

Thank you all (Well. most of you anyway), much appreciated.

[Tee Gee]

I am not obliged to answer such statements but I will just for the record as perhaps some of you might be interested in how my website came about.

I will use 'the greatgardeners' comments as prompters.

teegee may you should look on your website for the answer.

I think that this is just a facetious remark he/she wants to make about my website because I generally link people to my website for answers.

But as I knew the information on this question was not in my website I gave a calculated opinion of what I thought the problem was based on the information given and my experience. Hence no link!

Since you claim it is very imforative place.

I don't 'claim' I just link people to information that I think answers their question.

This saves me typing it all again, plus!! quite often answering one question can raise another (particularly for the inexperienced gardener) so they can use the relative links to gain further information.

This saves clogging up these boards with information that may or may not be required.

I  guess you will just have copy the answer there after some else gives the correct answer.

If the truth be known this is the part that pushed me into replying to 'the greatgardeners' reply.

For the record and I think Tim might be able to back me up on this, as he asked me a couple of years ago if this was the case i.e. was my website built up of extracts from magazines/books etc, the answer is no.

It is all written here; http://tinyurl.com/36mxgx.

And if that is not enough why would i state The above albums are testament to the practical experience of the writer see here;http://tinyurl.com/y72ret

Then there are the slide shows for some everyday tasks! what book did I get these out of?

The problem is not a mineral definceny  or the new leaves would have same symtoms.

Glad to see you agree with me considering you could not have read that information on my website!

The answer very simple. 

But alas I do not want people such as tee gee claiming the correct answer as there own at later date, so I will with hold the correct answer.

Since I am sure the  answer will reveal its self to orginal poster in due time.

Hope you don't mind me making some grammatical adjustments to your reply but I just wanted people to be sure of what you said.

It is entirely up to you if you want to withhold the answer that is your prerogative I am not particularly bothered as the original problem was not mine. 




Finally to all you good people who have to put up with this 'barracking' I am sorry.

I have no idea why these  comments are being fired at me but let me say it does not phase me.........my conscience is clear!

In future my suggestion is; if he/she comes on again stop the thread dead!! and re-ask the question in a new thread.

Perhaps then THE GREAT GARDENER  will get the message to take his/her 'muck spreading' into another part of cyberspace.

Yours truly;

Tee Gee

ps Let me thank all the people who have stood up in my defence its appreciated, but perhaps it would be better not to take sides as this might be construed as 'flaming' and it might play into the hands of this person.

Once again.............Thanks!!

[Plot69]

Once again.............Thanks!!

Your more than welcome. Non Ilegitimi Carborundum.

I bought some magnesium by the way, worth a shot.

[Robert_Brenchley]

I'm beginning to think Thegreatgardener (what an ego!) needs banning. We don't need to have people flamed.

[manicscousers]

how old do you think this person is, i'd guess early teens, he acts like it, also, the just coming on to make nasty comments then disappearing, perhaps mum's come in to see what's going on, if this person comes back on, I'm ignoring them, I'm fed up with the spiteful comments