What is this on Star Jasmine?
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https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm
I'd say either pest or disease. Perhaps a nursery can tell you.
I think it is called scale.and you might have to throw the plants stems and leaves. or cut the affected stem or pick it off or a cotton ball with some alcohol dab the area.
I only see it on 2 of the stems .. if I cut just those two down and spray with Neem oil, does it stand a chance?
I read up and it says to cut the affected limb and you can pick the bugs off or use a cotton ball with alcohol and dab it on the bugs last resort would be throw it away
Try that first, the 'infection' may not be systemic. If it has not hit the root system it will not show up in other areas.
Its aphids.
aphids, spray with a mild soap solution for about a week.
Aphids have antennae.
Can't tell from pic. Take a piece to your local county Extension agent to identify or to their Master Gardeners.
Aphids! You can use an organic pest spray which will kill them and not harm your plants. Just used one on my milkweeds and it worked like a gem. Trying to blast them off with water from the hose didn't work.
It's not aphids! It's scale. Aphids pile and are not like this and they will leave a white web like cottony effect.
A lady told me today to use spearmint rubbing alcohol one third to 2 /3 water and spray . they hate the smell! Wont harm plants.. use in house too for spiders and other plants for bugs.
Ew it’s nasty. Ask your local garden center.
Organic Fix for Scale Insects
Honest, if it is scale you can remove scale insects yourself. They secrete a waxy coating which is what makes it tough to get at them w sprays, but I prefer scraping them. Make a bucket of soapy water - dish soap is fine, it dissolves the waxy coating & drowns them. Get a hobby knife or exacto (if using your fingernail seems gross) and just scrape or pick them off and drop them in the soapy water to drown. (This is obviously a solution for a plant you love, if you don't love it, pull it up, put it inside a trash bag and tie it shut. I don't compost diseased plants & noxious weeds.) Come back & clean it again every couple days - you will miss a couple little ones & eggs will hatch, but because you didn't use sprays the scale's natural predators will also still be around helping catch stragglers. If you do a thorough job the first day subsequent days will be easy touch ups) Slow moving scales have no defense against soapy water & persistence. This is one battle you can win.
bug eggs
If it is scale, can they bite or harm my cats? Do they only use plants as hosts? Will they stay outside on the plants or is it possible to infest my house?
I'm no entomologist, but this looks like a clump of insect eggs. If there's no damage, and nothing elsewhere, I'd rub them off and not worry. Alcohol will probably kill them.
Looks like bunch of aphid eggs. Yellow and waxy. Wipe them off with a paper towel and add pray the whole plant with Dawn dishsoap water in a spray bottle.
Spray the soil too.
If not aphids it might be scale. Check out this University of California link. http://ipm.ucanr.edu/PMG/PESTNOTES/pn7408.html
Jasmine is a climbing plant and I think these are the way the plant attaches itself to an object for support.
Hi, Jill! I also have the same problem with my Jasmine and I can't figure out what it is. I have asked my friend who is a biologist specialised in plant protection and works at the Botanical Garden, but neither she nor her colleagues knew what this was. Yours was the only photo online I could find with this problem. To me, it first looks like a scarring on the branch, but later on the branch cracks and something like plant tissue comes out. It's definitely not scale or aphids. If there is anyone who had the same problem and knows what this is, I would appreciate any advice.
Looks like it could be scale and if it is, the plant will start dropping it's leaves. First I would get some systemic insect killer for house plants that you water into the soil. I get mine at Earl May's or a hardware has it also. All of my houseplants that are outside during the summer, get a dose of this before bringing them in. Then I would scrape this ugly looking stuff off and spray the plant with soapy water....especially on the spots you have scraped. If it is bugs, the systemic killer will take care of them since the systemic goes up into the plant from the roots and takes care of the bugs. If it is scale, the soapy water should take care of it. If you have a plant place or an extension office close, I would take the plant and ask the master gardener.
lTrimmed all the stems down that had this, sprayed with insecticidal soap and got my fingers crossed!
If your insecticidal soap doesn't work, try mixing, in a spray bottle, water with some oil (any type, baby, olive, etc). About a quart of water with a teaspoon of oil. It worked for me on several occasions when store bought insecticides wouldn't and I didn't cut any of the effected areas from plant.
I believe that this is an area where it will grow roots or attachments for it to climb.
I'm seeing the same thing on both my star Jasmine plants. I too thought it was some fungus of sorts, but I'm thinking it could actually be climbing structures that have hardened. They start out white and look like roots and then turn brown and hard overtime.
I would love to know if there is any new insights about this, because I have the same problem with my home jasmine
Same issue here. I did read that when it grows on the ground instead of climbing, it forms roots where the runners touch the ground. This does seem to form on my Star Jasmine where the stem is touching my wall. So, I’m hopeful that’s all it is - roots that don’t do anything while climbing. 🤷🏻♀️
Same issue here 😔
This is the only picture on the internet that I could find! I have mine indoors and it freaked me out! So it’s either scale, aphids or a growth to help it attach?!
https://www.chronicleonline.com/news/real_estate/a-look-at-confederate-jasmine/article_9c0a6c88-1b95-11e9-af65-17539250db1a.html
This is information explaining that the problem is actually a natural occurance in star/confederate jasmine rooting system. This enables the plant's attachment to a wall as it grows. I hope others with this "problem" do not destoy their star jasmine plants. IT IS NOT A PEST OR A DISEASE.
"Stems can but rarely do develop “hold fast” rootlets to cling to vertical walls and tree trunks. The real feeding roots of terrestrial plants are underground, cylindrical and have growth tips that should not be severed or damaged."
I should have just copied this info from the article for you.
WARNING! NOT PEST OR HARMFUL TO YOUR PLANT! DO NOT MAKE THE SAME MISTAKE I DID AND START REMOVING IT FROM THE STEMS! IT CAUSES HORRIBLE SCARRING AND DAMAGED MAJORITY OF MY PLANT THAT I HAD GROWING BEAUTIFULLY ON MY PATIO UNTIL I WENT INTERNET CRAZY AND THOUGHT THEY WERE A DANGER TO THE PLANT. NOT SURE WHY IM YELLING AT ALL OF YOU STILL I JUST HOPE I GET MY POINT ACROSS LOL. THE WHITE/BROWN STUFF THAT GROWS OFF STEM AND RESEMBLES SOMETHING OUT OF A HORROR MOVIE IS ACTUALLY PROOF YOUR PLANT IS WORKING. MINE WONT EVEN GROW FLOWERS ANYMORE AFTER I STARTED HACKING AWAY AT IT!!! It used to cover that entire wooded area
Yeah I read it was rootlets, too. I'm gonna leave it alone