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Strange leaves

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Strange leaves

Post by orchid40 on 14th January 2009, 15:20

I have several plants with these strange colorations. I don't think it's RMV, got some of that elsewhere! I wondered if it could be a deficiency of something or have i invented a new disease?
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Val

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Re: Strange leaves

Post by Guest on 14th January 2009, 16:44

i HAVE GOT SOME WITH THAT AS WELL vAL Twisted Evil

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Re: Strange leaves

Post by Admin on 14th January 2009, 16:58

Yeah.. I suspect a nutritional thing too Val... don't want to jump on the RMV wagon straight away... looks like an older leaf too and a plant will often take what it needs from an older leaf and re-channel it towards the new growth... could be time for a feed or some mulch or something Smile

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Re: Strange leaves

Post by Guest on 14th January 2009, 17:39

Is this one from a potted rose Val Hmmmm

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Re: Strange leaves

Post by orchid40 on 14th January 2009, 17:42

The Estate wrote:Is this one from a potted rose Val Hmmmm

No, Thee, I have them on potted roses and on the ones in the ground. This was from in the ground.

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Re: Strange leaves

Post by orchid40 on 14th January 2009, 17:44

TasV wrote:Yeah.. I suspect a nutritional thing too Val... don't want to jump on the RMV wagon straight away... looks like an older leaf too and a plant will often take what it needs from an older leaf and re-channel it towards the new growth... could be time for a feed or some mulch or something Smile

Ta Simon, it's always on the older leaves. I have been giving them regular feeds of various things, maybe they need some more. (Steak and chips might do it LOL)
Val

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Re: Strange leaves

Post by Guest on 14th January 2009, 18:12

DAMM Creepy going into chat room Hmmmm

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Re: Strange leaves

Post by Admin on 14th January 2009, 23:12

It might be worth looking at the soil too Val. Have you ever seen this:

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There comes a point when it makes no difference how much 'food' you give a plant because they just can't use it anyway. Soil pH affects the availability of nutrients by converting them into compounds that the plant cannot utilise. For instance, at a pH 5 nitrogen begins to become unavailable to a plant and by the time it gets to about 4 there is almost no nitrogen left in a useable form. Unfortunately when we fertilise a lot, especially with inorganic fertilisers, we can get an imbalance in the compunds found in the soil and it can acidify quite quickly effectively locking nutrients away from the plant. We continue to see the effects and so add more thinking they didn't get enough the first time. It still could be RMV because the symptoms can be variable but the most typical symptom is what they call an oak-leaf pattern (think maple leaf like on the Canadian Flag) from one side of the leaf to the other. If you could check the pH of the soil that would be good... just to rule out this posibility.

This might also help: [You must be registered and logged in to see this link.]

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Re: Strange leaves

Post by orchid40 on 15th January 2009, 12:16

Thankyou Simon and Cree for your help. I will do a soil test in several places ASAP.
Val

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Re: Strange leaves

Post by Admin on 15th January 2009, 15:57

No worries Val. It's about ruling out the possibilities. It could also just be old leaves and the plants trying to recoup some of the resources invested in them and part of the natural shedding cycle... the fact that it correlates with some nutritional deficiencny symptoms meerly provides a starting point.

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Re: Strange leaves

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