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A little stumped about what’s causing the brown and yellow on my
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Adrian

A little stumped about what’s causing the brown and yellow on my Hoya’s leaves. I initially snipped the 1st and 3rd leaves off thinking they got sunburned from my grow light, but it’s been in the same spot since November with no change in the direction or distance from the grow light it was under. I moved it to a new spot that’s farther from the grow lights but within 2 days, more leaves started getting damaged. I’ve currently got her quarantined in case it’s something fungal, but I don’t have any source of humidity for them this season (I live in PA and don’t have a humidifier), so I’m leaning more towards something akin to edema. I’ve checked her for pests and found nothing, but she did have 2 mealybugs on her a little over a month ago. Haven’t seen them since (and I’ve repotted her, checked for root mealies and put systemic granules in her soil). She’s in a well draining cactus mix, her roots look healthy, I Iet her completely dry out between waterings, and pat her leaves dry and let her dry overnight before returning her to her grow light. I have been concerned about the potential of it being my water. I don’t use tap, but I use water from my fridge that’s connected to local lines. The water tastes fine, but I’ve noticed since switching from bottled water to the fridge water (that I let sit overnight to come to room temp in water bottles) that I’ve been getting little mushrooms in my soil every week. This is one of the only plants that I haven’t seen the mushrooms pop up in, and I know those don’t tend to be an inherently bad sign, but felt it was worth mentioning. She’s one of my favorites, so any help in helping her out is greatly appreciated. TIA đŸŒ±

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8 kommentarer

  1. Adrian

    Most of her leaves look alright atm since snipping the others off, but these two started turning in the past two days.

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  2. Sunny

    Check the roots for rot. They can grow less if temperatures drop requiring less water. đŸȘŽđŸ€

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    • Adrian

      Checked the roots. They look good to me. Lots of new ones, if anything. Didn’t find any signs of pests either, so I’m pretty stumped 😅

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    • Sunny

      The roots look fine. Doesn’t look over watered. Check for dryness on the roots. They don’t like to stay dry too long even though they survive longer than most thin leaves plants. I would leave it in one spot. Ensure the temperature is not too low this time of year. đŸȘŽđŸ€

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  3. Dani

    I was looking into humidity for myself the other day. I don’t know if that is the problem with your Hoya, but I just wanted to let you know what I found because you said you don’t have a humidifier. “To increase humidity without a humidifier, group plants together, place them on pebble trays filled with water, or locate them in naturally humid rooms like bathrooms and kitchens. Other effective methods include misting regularly, using glass domes for individual plants, or placing bowls of water nearby to evaporate.” How long has it been since each of those changes? - moved locations - bugs (month ago) - repot - added granules - water change to fridge water Just even a simple repot can be enough to traumatize a plant, and without any judgment whatsoever, you’ve had a few changes that the plant might be trying to adjust to.

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    • Adrian

      Thank you for your tips 😊 I moved it to a new spot over the weekend, the last repot before today was January 4th, when the granules were last added, and the change to fridge water started around late November to early December. The first mealy was spotted in early December, so I treated it with isopropyl alcohol, insecticidal soap, and granules, and quarantined it, then when I spotted the second one in early January, I spot treated it with alcohol on a q-tip and checked the roots for root mealybugs. Put her back in quarantine. I kept her under the same grow light she’s been under since November during this time and moved all my plants from her shelf while she was being quarantined. Haven’t seen any pests since.

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    • Dani

      So I would say try to leave it alone for a long while. It may lose more leaves or get worse before it gets better. Even though all of the things that you were doing, were in attempts to save it and make it happier, plants get used to a certain routine. So if it’s experiencing a different kind of water, a new soil, or disturbed soil after the transplant, a different location, having been treated for bugs and all that stuff during its dormant quiet time, it can experience a period of shock and it is stressed. If it was watered right after applying the granules, it could have some sort of chemical burn if the product came into any contact with the “newly disturbed roots,” versus a typical overwatering or something which you said you’re not doing. And your roots looked healthy. I shocked my lipstick plant pretty good transplanting it and like almost half the plant turned black and died off, but I just left it completely alone to recover on its own and that worked for me. đŸ€·đŸ»â€â™€ïž now it’s got blooms and it’s under a grow light and I water it way less, but I’ll definitely have to prune it back later and get it back to a healthier shape. If it gets worse, or you still can’t figure it out, my best friend notified me that she had no idea she was living next-door to someone that grew and sold 700 variety of Hoya. So maybe I can try to coordinate some sort of email or assistance or something.

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    • Adrian

      Thank you very much for your help. And wow, what great luck for your friend! I might just take you up on your offer there if I can’t save Jenny here. Hopefully you’re right and she just needs some time.

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