Brown spots on Jade stems
deva33 Z8 Atlanta
9 years ago
Hi all,
This is on the jade that I rescued from my school. These weird brown spots were all over the stems. They can be easily brushed off and it's just like some dried up little balls of dust. Do you think someone just dropped something on it? Some of the leaves were sticky like someone spilled some soda on it or something. Do I need to be worried? Is this something that could spread to my other plants?
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bikerdoc5968 Z6 SE MI
9 years agolast modified: 9 years agodeva33 Z8 Atlanta thanked bikerdoc5968 Z6 SE MI
Nil13 usda:10a sunset:21 LA,CA (Mount Wash.)
9 years agodeva33 Z8 Atlanta thanked Nil13 usda:10a sunset:21 LA,CA (Mount Wash.)Related Discussions
Brown spots on stems, black leaves, stems falling over
Comments (1)Hello, janellw. Can you post pictures of the black leaves on the shrub and a close up of the leaves (front and back)? Then post another picture of the brown spots on the stems? Root rot can produce brown spots on the stems although more obvious symptoms would include continuous wilting regardless of how much water you provide. Excessive watering and-or soil that drains poorly can help develop this problem. There are other types of fungal infections -in addition to root rot- that could cause black-ish leaves such as anthracnose. It could also be a case of powdery mildew where the leaves do not turn exactly black but maybe dark gray or purple-ish sometimes. The pictures may help us see what you see. When you have fungal issues, the best thing you can do is make the environment difficult for the fungi to continue spreading. Sometimes Mother Nature does that when high summer temperatures and low humidity arrive. Other times, you need to control soil moisture better. The best way to proceed is to use the finger method so you know when it is ok to water. On a daily basis, insert a finger into the soil to a depth of 4" every morning. If the soil feels dry or almost dry then add 1 gallon of water. If the soil feels moist, do not water. If the soil feels wet, determine why and take appropriate steps to prevent that if necessary. Do this every morning for two weeks. Every time that you water, make a note on a wall calendar. After two weeks, revisit the information on the wall calendar and determine how often you had to water. Say, every 2 days? every 3 days? Etc. Then set your sprinkler to give the hydrangea 1 gallon of water on that same frequency. If the temperatures change 10-15 degrees and stay there, recheck for two more weeks using the finger method. Good sanitation techniques can also help. These are things like never watering the leaves but watering the soil only. Water the plants early in the morning. Discard in the trash all plant debris under the hydrangeas. Because this is an ongoing multi-year problem, replace the mulch with new mulch (3-4") and -in the fall- throw the dried out blooms and leaves in the trash. Allow some separation between shrubs to improve air flow. In large plants, open up areas (by pruning) so sun and air get deeper into the shrub. See the link below for additional information on hydrangea diseases. If you cannot post pictures, feel free to take leaf samples to a plant nursery or Agric Extension Service for analysis (place the leaves in a sealed transparent bag). Does that help you? Luis Here is a link that might be useful: Hydrangea Diseases...See Morespotted leaves, browning stems, bacterial spot?
Comments (9)Hi Guys- I live in North Berkeley and all the plants in one of my raised beds look exactly like Irene's. What stinks is that I had first planted two plants from Spiral Gardens Nursery, who grow their own starts, and those did great, even in all the rain we got. Then I planted three plants that I got from Forni-Brown Nursery in Calistoga, which I am almost certain they grow their own starts (they sell mostly to the local restaurants in Napa Valley), and those did great. Then two weeks after that I went to Berkeley Hort and bought more plants, including some sourced from Sweetwater Nursery. While at Berkeley Hort I came across a Mortgage Lifter from Sweetwater, noticed that it was spotted, and brought it to the attention of a sales guy at Berkeley Hort and asked him if there were problems. He very patiently explained the "cold damage" and I believed him. Normally I'm totally paranoid, but I have shopped at Berkeley Hort for five years and never had any problems with plants there, and I consider their staff to be top notch. I also have bought lots of stuff from Sweetwater without a problem in the past. So I thought I should get over my paranoia and went ahead and got some plants there, including that spotty Mortgage Lifter. Planted those, rains came, and a week later, EVERYTHING in that bed had spots on them. Obviously this is all just my observations, but the bottom line is, I should have gone with my instinct and just left that Mortgage Lifter alone. Now it's a waiting game. I finally got to the point of not stripping any more leaves, even if spotted. It's now an experiment. The new growth has been pretty normal, no spots. I've drenched with Serenade twice, but it's expensive, so I've been using a baking soda/oil/castile soap "natural fungicide)" concoction. I can't tell if it's helping or if it's the dry weather that has slowed the leaf spots. I imagine that if I get more fruit set, the plants will only stress and get worse, and who knows if anything will properly ripen. I'm just hoping to get even a small harvest. We'll see. Good luck to you guys and hoping for the best for everyone!...See MoreThose darn brown spots on Jades
Comments (15)Could be too much water Being succulents, variegated jade plants do not need much water and will grow best if the soil is allowed to go completely dry between waterings. If you water your plant too often, the leaves take up the excess water and swell. The swollen leaves then develop brown or rust-colored spots, often on the underside of the leaves. This problem, referred to as edema, will affect most of the leaves on your variegated jade at the same time. It's best to prevent edema by not overwatering your plant. If you have overwatered it, help the plant give off the excess water by making the air drier, warmer and better ventilated around the plant. A jade plant with edema should not be placed in direct sunlight or in a cold, dark room. Or it could be due to too much salts.. If you live in an area that naturally has salts or minerals in the tap water, these salts and minerals can cause your jade plant to develop brown spots on its leaves. The water gets taken up by the root system to the leaves and then the leaves give off the water through transpiration. The leaves can only release water, not the salts. When the salts get left behind, they can burn the leaves. The problem will show on most of the leaves on their upper surface and at the tips. To prevent this problem, give your jade plant filtered water. This type of leaf burn can also happen if you give your jade plant too much fertilizer. Only feed your plant once every three months and follow all package directions so you don't give it too much. This use to happen to mine until I started using rain or bottled water....Try anything but tap) If either of these does not help, then last resort would be the Bayer Disease Control because at one time I was using it and it worked like a charm on all my jades...Leaves clean as a whistle over time....See MoreJade plant has brown scale where leaf meets stem
Comments (0)Hello, This is my jade plant; I have had it for a few years now. Does anyone know what the brown dry crusty stuff where the leaf meets the stem? Is this normal or do I need to remedy something? Thank you. XO. (Originally posted in houseplant section)...See Moredeva33 Z8 Atlanta
9 years agodeva33 Z8 Atlanta
9 years agolast modified: 9 years agobikerdoc5968 Z6 SE MI
9 years agodeva33 Z8 Atlanta
9 years ago
breton2
9 years ago
k8 (7b, NJ)
9 years agodeva33 Z8 Atlanta
9 years agoWhat would be a good insecticide to use? I also have several cuttings from this plant. It was a very large, over grown, poorly cared for jade that was in the graduate commons at my school. I pruned it way back just to stabilize it and have a bowl full of cuttings waiting to root should I just get rid of all the cuttings? See below for pics of before and after. I've already potted up some of it. I'm thinking of just taking it back up there and getting that scale away from my collection!
bikerdoc5968 Z6 SE MI
9 years agodeva33 Z8 Atlanta
9 years agolast modified: 9 years ago
greenman28 NorCal 7b/8a
9 years agodeva33 Z8 Atlanta
9 years agodeva33 Z8 Atlanta
9 years agodeva33 Z8 Atlanta
9 years agodeva33 Z8 Atlanta
9 years agodeva33 Z8 Atlanta
9 years ago
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bikerdoc5968 Z6 SE MI