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chlorotic leaves

18 years ago

I have some healthy, well fed plant showing inter-veinal chlorosis of middle to upper leaves. I have seen this before.

What is causing this? I have used an application of Epsom salts and a bit of lime for calcium. So far no effect. Have some of you long timers noticed this? is it anything to worry about?

I noticed a two trunk Brugmansia of which one is beginning to Y and the other is not. Now this is the same plant, and the branch from the ground that is begin to bud is showing these symptoms also, while the other trunk is comletely normal! Both trunks are about 6 ft high, same thickness. the other Brugs with chlorosis are either budding or flowering. None of the Brugs that are not budding have this yellowing of the leaves. Is there a correlation?

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Comments (8)

  • 18 years ago

    Barry I've noticed similar problems recently. I've given ES and iron but haven't seen much improvement though it hasn't worsened either. I wonder if anything that I'm adding to the soil is getting washed away because of all the watering I've had to do the past couple weeks. It's only happening with my potted brugs and I've had to water some 3 times a day. I'm waiting for a day with early temps in the low 70's so I can do a foliar feeding. I don't like do any foliar feeding when it's so damn hot. We're hitting the 80's by 8 am. BTW what variety brug is that? The flower color is just beautiful.
    Karyn

  • 18 years ago

    Thats what I want to know. Forget the yellow leaves I wanna see that flower, lol. It is really pretty. Just kidding about the leaves. I don't know whats causing it but I have a few like that too and they are in pots and getting lots of water and its been too hot to fertilize here as well.

  • 18 years ago

    Same here. I have several with the same symptoms. Tried iron, e. salts, more food, less food. They stay the same. I would imagine it's really nothing to be concerned about since we all have it ?? Barry do clickable pics.. some of us still have dial up. :( ... Edna

    Is the flower Infinity ??

  • 18 years ago

    hahah .... just the plain old Pink Favorite, when 2 or 3 days old and closed, it has a nice color. :) I have to admit that so far, it is my favorite!

    I am beginning to suspect this fringe yellows is normal for some Brugs

  • 18 years ago

    Barry,
    Have you checked the pH of your soil recently? It could be that the roots on the side of the affected branch are in a slightly too alkaline on slightly too acid area, preventing good uptake of the minerals. I had this problem recently and after adjusting the pH back to about 6.7, the plant was happy, again. Just an idea... Good luck!
    Barb

  • 18 years ago

    I had that as well. Went away with time. Lasted about 2 weeks maybe?
    Don't know if it was coincidence or not, but 1 week into it, 1 week before thay got back to normal, it was their time to get the ES & Fish Emulsion. I mix them with pond water & the water I clean out the pre-filters in..not hose water.
    That flower IS gorgeous! SO much so that it almost looks fake! I love it!

  • 18 years ago

    Barry, I think that Barb hit the nail on the head about checking the pH of your soil. The pH can really affect the uptake of nutrients.

    Many years ago on the ABADS site Tonny from Denmark and Susie (a long time brug grower and breeder who is no longer involved in brugs that much now) had a very informative discussion of nutrient deficiencies in brugs. The application of Epsom salts has already been given, so the only other thing that I would suggest at this time is to give it a dose of boron. Get a box of: 20 Mule Team Borax that you use for laundry. Dissolve 1 teaspoon in a gallon of water and spray it as you would for a foliar feed.

    Also, may I ask what type or brand of fertilizer you are using in your main fertilizing program? After many years of growing brugs and using many different types of fertilizers, including the Bloom Buster types, I would suggest the new formula of Miracle Grow 24-8-16. Not the old formula of 15-30-15, which may not even be on the store shelves anymore. The 24-8-16 ratio of N-P-K more closely matches what the experts recommend for growing brugs. Here is a link to the "Correct Fertilization Of Brugmansia" page at ABADS.

    http://www.abads.net/nutrition/Nutrition.html

    Something else that wonÂt hurt, but can only help is, to apply a good layer of fresh compost. It is full of micro-nutrients that are readily available to be taken up by the plant.

    Hope that you are able to get this resolved soon.

    David

  • 18 years ago

    Thanks David, I may have goofed, and acidified the soil. there was an old bag of Scotts Azalea,Camella. Rhododendron Builder, and it had 15 11 11 since the bag was old it was hard to read, but it had great micro-nutrients. What I could not read was the acidifyers. (google search)
    I have used it very sparingly. I hate to think that it has had much of an effect. other plants I used it on have thrived.

    My conclusion is that this has either caused a temporary acid situation or the whiteflies, which are back, have caused this ( looks similar to whitfly damaged leaves)Brugs might be very sensitive to whiteflies, or there are more than I think, in the nymph stage.

    I will use a little hydrated lime on a few and see what happens, and treat for whiteflies.

    Oh, it cannot hurt to use a bit or boron :)

    BTW My soil has extreem amounts of compost.