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Black Spots on My Orchid Leaf: Should I be Worried?
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- Опубліковано 26 бер 2021
- Black spots on orchid leaves could mean one of three things:
(1) the orchid was bruised during transport or handling,
(2) the leaves have had access to more sunlight then they require, or
(3) bacteria has infected the leaf.
Since the first two reasons are fairly easy to resolve and there’s no need to panic, this video will focus on the bacterial infection. But as a guide, brown spots can occur during rough handling, and the leaves bruised. They will recover in a month’s time. As for sunlight, move the orchid away from direct sun.
Black spots on orchid leaves are a direct result of a bacterial infection caused by Acidovorax (syn. Pseudomonas), known as Bacterial Brown Spot. The spots start off as brown smudges, minuscule in size and appear waterlogged. When pressed, the leaf will ooze sappy liquid.This initial stage could be mistaken with overwatering, since the leaves can’t eliminate the excess water faster than the roots can absorb it. Water will cause blisters on the leaf, which eventually turn brownish-black.
Contrary to overwatering, with Bacterial Brown Spot, the infection will appear a nasty green color, slowly fading to yellow circle-like halo around the spot, then black.Black is the final stage, when the blister sinks down into the leaf, leaving an “open pond”, or whole.
If you want the full explanation of this video in writing, go to orchideria.com...
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DISCLAIMER:
This UA-cam Channel is the by-product of extensive research on how to recreate that environment inside my home.
By no means do I consider myself an expert but I'm an avid learner and willing to share the little I know with others. There are thousands of different ways to care for orchids, and the more we share, the more we learn.
What started out as a hobby has now grown into a passion, producing an online resource of quality information on how to connect with nature.
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Thank you so much for this video! I have a few orchids & one has a huge dark spot that keeps growing larger...but it also has white spots. Now I know from this video that my orchid has a fungal issue. You just gained a subscriber.
I purchased this plant already infected. It was on sale and thought it was just cold burn. Luckily, I kept it away from other orchids! When I realized it was an infection, I threw out leaves & flowers. I'm trying to start new plants with flower spikes. Also, since lots of the roots were good, I'm trying to grow new leaves from the base of the stem by the roots. I just ordered your Orchid record book so I can keep records of my experiences.
I am new at all this so I have lots to learn! (I don't know how to attach photos.)
"This is contagious"😭 oh no I've just wipes over all my orchids with the same cloth lesson learned defo gonna take your advice thank you! Subbed
Hi Kathleen, Thank you for watching and leaving a comment. I appreciate it. 🙏
Hello! You should be a professional teacher!! I've read your blogs, website, and now the videos. Love the way you get straight to the point and explain in a manner that everyone can understand! I REALLY appreciate this, as I am not computer literate so I now just go straight to your information for everything orchids! I am a newbie, so THANK YOU, I'm sure anything you think important enough, you will post. LOTS of Anything and Everything!
Hi Michelle, wow, I'm humbled and speechless. Thank you!! :)
Wow very good video! You’re very knowledgeable
Thank you for your response so fast. Thank you for helping me 😊
You're welcome. 😊
I bought an orchid as a rescue and I thought it was just a little bruising, I think my orchid has a bacterial infection:( none of my other plants are showing signs of infection wondering if neem would also work? I will be doing hydrogen peroxide for now! Thank you for such an informative video! The browning isn’t to bad just on one spot but it does seem to be spreading
Hi Amanda, Thank you for useful info. I had a case with on of my orchids. I bought a new phalaenopsis. I was so happy that I have a plant with 5 flower spikes. I was so excited about it. I left it a side and kept it in the plastic wrap to avoid any temp shock. After 3 days, I noticed a black spot on one of the leave. When I removed the plastic, I found one pod trapped between 2 leaves. Bacteria start to grow on both of them. I use H2O2 to treat it but for some reason it did not work for me. Finally, I had to cut the infected part and used cinnamon.
Hi Abdulhalim, 5 spikes? That's amazing! I have found that Hydrogen Peroxidw doesn't do everything that people say it does. It's good to clean the leaves, but not much else. It doesn't kill or halt bacteria so cinnamon is the best thing next to a bactericide for plants. Just don't get cinnamon on the roots. If it spreads too much, it's best to cut the leaf off.
I picked an infected plant on sale to save it, it had a cut leave and a lot of the white dust bugs, I cleaned it and disinfected it, after a while my orchid starter to grow really healthy it's leaves went from droopy to stiff and it grew a new leave but now I see a big brownish to black spot with dead tissue at the middle
Cinnamon can be mixed with antibiotic ointment
I think I just had this today. I cut the area off, used cinnamon on all edges and just hoping it doesnt spread further.
Mine has started from the tip of the leaf and it's black and dried up and then the leaf is yellowish brown and then has brown spots on it. Please help
I tied my orchid to the avocado tree I have, last year. It was dying inside so I gave it the black tea treatment, which helped the roots come back to being green. I tied it to the trunk but I think it was too tied. I did see some growth of new leaves on that sick orchid but that was it. The baby one I bought hasn't done anything but it's still alive. Now recently I've seen bite marks on the leaf from the previously sick orchid. I've pretty much left nature take care of it cause I pretty much gave up. I live in Florida and it's hot, but rains every day during this summer. I've tried to growing plants but everything dies on me, so I think the orchids I have have a slight better chance of survival outside.
Hi Munchiis, I know the exact feeling. I am not good with most house plants because I forget to water, so orchids have been a life saver for me. On the tree outside, your orchid will do great. I don't have a video about how to tie orchids to trees (not yet anyways) but I did write an article about it. You can read it here: orchideria.com/orchids-on-trees/ The Florida humidity will do wonders for your orchid.
@@Orchideria Thank you! I sure hope so cause I keep seeing the big leaf has holes in it, like it was chewed out all over in random spots. But the baby leaf looks healthier. I might throw some black tea water on it and even spray miracle grow on it.
Hi Munchiis2486, That's a great idea. I would do one or the other, but never both at the same time. You could rotate them weekly: one week use tea, the next week use the spray.
@@Orchideria Oh yeah one once a week. I've treated this plant for a long time at the beginning, I'm not going to kill it by mixing stuff. I might go buy another orchid at the store. I'm mad cause I ended up throwing away another big one and two little ones cause they were all dried up to the point that looked dead. Who knows I might had been able to give them the black tea treatment but unfortunately I didn't know then what I know now. Rip my flowers!😔
I can see the orchid with white flower on the left of the video showing black near the stem, surrounded by yellow. I think I have something similar developing on the leaves below the top most pair. Is this normal, or rot?
Very informative as I have a zygopetalum with spots.....do you have a video about treating them?
Hi Joseph Rapp, Thank you for watching and for leaving a comment. Unfortunately, I don't have a video or an article on zygos. They are a tricky orchid to grow. I'll look into ans see what I can find and research if they are any different. Sometimes one genus of orchid attracts specific bacteria. Other times, it's natural and it's nothing to be worried about. *fingers crossed that it's the later.
Interesting Channel. I've only seen about five videos so not really ready to make a judgment outside of interesting but definitely interesting.
Thank you, Victor.
I sprayed my orchid with peroxide if that doesn't work I will try the other stuff that you have thank you for helping me
OMG My brassavola has a giant black spot. I don't know what to do!!! Thank you for your video!
Hi Praxedis, Is the spot on the flower or on the leaf? If it's on the flower it might be related to too high of humidity.
mine has like a big light black spot and some yellowing around it. this orchid and me have been through hell, it wont live for me xd idk what to do
My Orchid is blooming and looking pretty however every leave on it has brown spots but there are not on top of the leave but all are underneath the leaves. Is that Bacterial Brown spots too?
Hi Ina, I honestly don't know. I've never seen black spots on the underside of the leaf. In any case, I would treat it with a bactericide and see what happens. Physan 20 won't hurt rhe orchid, and if it isn't bacteria, then no harm is done to the orchid.
My orchid stem/crown has dark spots. What is happening to it? One leaf is drooping, the others are healthy.
You never said how to treat it with hydrogen peroxide. What to do.
How do I stop the spread to other orchids, i dunked all of my plants🤦. I noticed at the very end
Amanda, I love your videos and love orchids (inside - Scotland). I have a little problem I need advice on please. 2 of my orchids have sticks bits on leaves and also a series of 'scales' on the under edges of leaves which are easily rubbed off. Otherwise plants look healthy, leaves look good and flowers. I have these 2 quarantined in case i have an infestation!
Hi LW, You are correct in isolating them. Scrub them down with a soft toothbrush or very smmoth sponge. Use a misture of water and light/mild dish detergent and that should do the trick.
Amanda, do you recommend an automatic Physan 20 treatment to any orchid once you bring it into your home?
I got brow spots on the flower and dark line on side of leaves. Is this also Bacterial related? I heard someone say to add a bit of cayenne pepper on water. Is this a possible treatment too?
My orchards has black dots on them. How to get rid of them
Hi Jill, Once the back spots are on the leaf, they won't go away. They just sit there and get worse. To avoid the spread of this bacteria, you need to spray the entire leaf with a bactericide or fungicide, which also works. I use Physan 20 just because it's easy to use and does a good job. If it's not a Phalaenopsis, then it can be normal. Some orchid have these spots and they're ok. As long as they don't spread and grow, you're covered.
@@Orchideria phalaenopsis orchard
I spelled it wrong 😃
Physan 20
No where in this video do you explain how to use the hydrogen peroxide. Do you dilute it?
Hi Amanda. I really appreciate your videos. Recently I sprayed some of my plants, including some orchids, with a neem oil and castile soap mixture. The next day i noticed huge black spots on several of the leaves of multiple orchid plants. My plants live outside (southwest Florida). I'm not sure if the neem oil + new sunshine burned the leaves (a massive tree was cut down so my back yard is now much more sunny than it was a week ago,) or if they're suffering from something else. Do I cut these leaves off or just keep them in a shady area?
It's hard to know without pictures, but I wouldn't cut them off. If they start to grow or spread, then remove the leaf.
Can I water my orchards when the weather is 56degrees in Florida is it ok to water them
Hi Jill, Yes, still water them, but not as much or as frequent.
@@Orchideria thank you for your help I love to watch your videos I have learned so much 🙏
Hi Amanda. I recently watched your video on hydrogen peroxide burning roots etc but here you recommend using it on the everything including the roots. Is that just because it such a severe case?
Hi Carole, yes, exactly! Sometimes the damage done by the hydrogen peroxide is so small and you can have benefits as when it breaks down into 2 OH. The benefits of killing the bacteria outweighs the damage you'll do by using it. Also the bacterial brown spot is aggressive, so you have to do something fast, if not the orchid dies.
I can't use cinnamon because my orchids are outside.
Good call. The rain will soak the cinnamon right down in to the roots, and that's not good. You could use cinnamon and keep them inside for 2 days, just enough for the wound to heal, then take them outside. In that case, it won't hurt.
Hi I'm beginner just got 7 ice orchids and see you do great shows but not happy with feeding when I start feeding as newish from shop. Thinking starting after first bloom finshed. For me start with tea bag to hard water then give orchid Better Bloom, Epsom Salt, and Cal-Mac at a right amount then flush after month I feel happy with what be your thoughts on this. Also tap water leave in tub for 2 days ok to use? Or just get tester?
Hi Lee, I usually use a balanced fertilizer 3 weeks out of the 4. I adjust those doses on 3 occasions: when the orchid is in bloom, when the orchid grows new roots, and when the orchid grows new pseudobulbs. If I have other specific problems, then I use epsom salt or cal-mag. Sometimes I use epsom salt periodically 1 every 3 months to keep routine. If you mix too many products at once it can hurt the orchid because those products react with themselves. So whatever fertilization schedule you follow, be sure to only use one product at a time.
Amanda got project idear I have 3 loves moth orchard, moss, and mini vern. So my complete Plants plan to be will grow with each other. So my plan window box with holes on tray catch water. Put beach pebbles in window box with pots hide pots for 3 orchids and 3 vern. no holes. Then put potted plants in with holes in pots. So take them out to water/ maintenance. Put live moss on top pebbles hide pots ect. Spray mist when needed for moss and vern. This is my take what see on UA-cam but I believe my way is for long term growing with all plants growing together. Which I think be long term sustainable hopefully all plants in good health. Perhaps be idear to do video if like idear.
Hi Lee, when I do a plant setup like you described, I still have to leave them in separate pots. This is because the orchids will fight for nutrients between themselves. The biggest, oldest orchid will take over the pot, depriving the newer, younger orchid's roots. By leaving them in their separate pots they grow easier without "competing" with other. They are also easier to treat when it comes to pesticides. I think the idea you want is like an open terrarium, but those don't last long term, as in over 10 years. It will work and is beautiful, but you have really know each orchid well to do this. I wish you the best and I know its going to look great!
I'm going to get the first product you mentioned to mix with water. Can you please send me the name of it. And do I spray it all around the orchard
Hi Jill, I'm not sure what product name I mentioned, but it's probably Physan 20. If the spots are really bad, don't dilute it. You can spray the entire orchid. If it's just a few spots, then dilute it a tad bit. Half and half is good.
@@Orchideria I want to send you a picture of how many black dots on my orchid can I do that
Hello, thank you for the video :). I have not Physan 20 in Italy, can you tell me another product or the composition of Physan? I can find anti fungi, but not antibacterial. Thank you.
Hi Malaspina, You can try 2 things, but I haven't tried them personally, so this is based on theory and not practice. I read that you can use 2% solution of Sodium Hydrochloride (bleach) if you dilute it well. The other option would be to use Corsodyl (chlorhexidine gluconate) antiseptic mouthwash or Listerine. I know that's not a very common answer, but it doesn't hurt the orchid and it kills the bacteria. I've had more than one person recommend this, so I guess it works.
@@Orchideria Thank you so much my dear, I'll have a test with Listerine then! With or without alcohol? Have a nice day! :)
If you can find one with alcohol, that would be better. Just don't use a lot. :)
Hii, i just brought my new phals from online. I noticed that there's a black spot on the flower spike so i just ignored it. A few days later, there's black dots on the leaves as well. Is that a bacterial brown spots too?
Hi Fahmee, It certainly sounds like it, but I haven't seen black spots start on the spike. It could be, since nothing says it can't. I would treat it like bacterial brown spots since it is on the leaves, too.
@@Orchideria thank you so much 😁
Physan 20 is that what you are talking about please help
Yes, that's it!
I am new here just bought a phl. And didn't notice that some leaves have black looking discoloration. What do I do? HELP
Hi Karen Haygood, I’m sorry it took so long for me to write you back about your comment. I was on vacation and didn’t log onto my UA-cam. Thanks for commenting on my video. I appreciate it and was glad it helped. I know it's been 3 weeks, but how is your Phal now? have the spots grown? Are they the same size?
@@Orchideria actually what I'm done was cut off all the bad leaves and left the new leaf and took and sprayed her with peroxide and water let her dry and then replanet her so far that one leap looks good and just kind of waiting to see if she'll put out a new leaf it's a waiting game
Should I spray my orchid with 3% hydrogen peroxide
Hi Jill, You can use 3% on the leaves to remove bugs or insects, but I don't ever use hydrogen peroxide on the roots.
Get orchids they say… they are really low maintenance they say….
Me: sees large black spot on Princess Diana and smaller black spots on Queen Elizabeth and heads to UA-cam😩
Hi Poneisha, You had me laughing at that one. Yes, orchids can be tricky, but with the right information, they get easier. Hang in there!