Kumquat disease ? Nutrient deficiency ?
7 years ago
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- 7 years ago
- 7 years ago
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What Type Of Nutrient Deficiency Is This?
Comments (8)You know what, I didn't add gypsum to that mix. That tree was the first thing I planted in gritty mix and I don't recall adding anything but the granite, turface, and bark. I ordered Foliage Pro a few days ago however so the gypsum won't be needed now anyway. I have been using Vinegar in my water but it's possible that it's not enough. If the pH is still too high it might be blocking the uptake of nutrients. I use 2oz of white vinegar in my two gallon watering jug. The pH of our water is nearly 8 so it probably wouldn't hurt to add a little extra. I read in a couple other threads that those of you who use gritty mix sometimes fertilize with every watering at a lower concentration. Looking back on the past couple weeks I've been using diluted fertilizer maybe once every four waterings so I'm thinking I just need to increase my fertilizer use. Thank you all for the help by the way, I appreciate it. I love to crowd source my problems to see what other people think lol :p...See MorePlant Nutrient Deficiencies. This will help you!
Comments (8)Mike, good idea to post symptoms here, but since it is a citrus forum, I should point out that in many cases, the symptoms you've listed don't occur on citrus, and that the actual symptoms on citrus are quite different from those listed. For example: Calcium -- seldom visible symptoms on citrus Magnesium -- never symptoms on new growth of citrus; old growth shows a characteristic "inverted V" of green at the base of the leaf and yellow-orange above. Phosphorus -- I've never seen a citrus tree exhibit the purpling of leaves; rather, reduced fruit size and yield is most common. Boron -- in citrus, shows up as dead, sunken, gray or brown areas in the albedo (white part) of the fruit peel. Usually no other symptoms. Copper -- Growth may be unusually vigorous, producing huge, deep blue-green leaves, but the stems are too weak to support the weight, so they bow unusually, giving what is known as an "S" shape to the limb. Also, such limbs develop blisters on the epidermis which swell, then burst open, and ooze a sticky sap. Then in areas of the world that have fire ants (e.g., Florida), the ants are attracted to the sap, and they chew away the epidermis, killing the twigs entirely. Manganese -- at least in Florida, even a fairly severe deficiency generally has no effect on yield. Molybdenum -- older leaves are green with large (up to 1/4") yellow spots, like large freckles....See MoreKumquat dropping leaves, some disease?
Comments (5)Yikes! That's REALLY high in N, even for citrus,Very strong fertilizer, I think rather overpowering for a container plant, personally. And yes, I would say this may be nitrogen burn. I would re-pot, flush the roots and switch to DynaGro Foliage Pro. Be sure you've got a well-draining potting mix. Some of this may also be due to wet roots. Most container folks use 1/2 strength Foliage Pro with each watering, full strength during the later spring and summer, when citrus are outside and really growing. Patty S....See MoreStress, nutrient deficiency or disease?
Comments (5)if a leaf yellows.. from the tip back ... then it is a water deficiency ... and it usually starts on the oldest leaves.. i like to think of the plant sacrificing the old... to maintain the new ... is it an old leaf ... i swear chris told me this.. when i visited a few weeks back.. and brought a potted plant which looked just like yours .... and i swear i did a post on it ... since then ... which with this group... probably means its already on page 30 .... lol .. post at link ... my second reply .. 5th pic or so ... that would be the end result of the beginning of which you are seeing ... but you will water more now ... pots are tricky.. i hope you have the pot in full shade ... it might also be a hardening off issue... if you bought from a heavily shaded spot in the nursery ... and substantially changed such.. when you got home ... it would be transport shock ... not to be confused with transplant shock ... ken Here is a link that might be useful: link...See More- 7 years ago
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