Misc

Pests, diseases and problems

Share your own experiences with plant pests and diseases, and gain valuable insights from others on how to prevent and treat these common problems.

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Leafmealone

This maranta is in bad shape. I repotted it a month ago and it didn’t help. I’ve tried the greenhouse and other light conditions. Today I realized it has some spots on it so I used systemic insect control on the soil and neem oil on the leaves. Does anyone have any idea what is wrong or any suggestions?

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kateui

Help! My beautiful flourishing peace lily drooped in a matter of 1 day!! 🌱🌿 I had a small grow lamp on it while I was at work Tuesday, but I’ve used it before about once a week or so. I took it into the shade for 1 day now and it’s not recovering. 🥺 I also repotted it 5 or 6 nights ago. I took it out of the nursery pot into a pot with no drainage BUT there’s a big layer of rocks followed by a big layer of “smart gravel” pebbles. I watered it the night I repotted but not too much. Soil is a little damp but not much. thank you! xoxo

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isaiah

What does this look like? Plant is growing wonderfully and newer leaves look great. Some older leaves have just a bit of yellow, but this leaf caught my eye because of the weird spotting/speckling that is new. No clear signs of pests. Not sure if it’s just yellowing and I’m being crazy or if it’s maybe a fungal issue??

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ABucketOfPlants

Please help! What’s happening to my Peace Lily?!?!?!?! EDIT: Alright, I’ll move it out of the sun and try to water it consistently (and prune the dying leaves). If that doesn’t work, I’ll flush out the soil in case of some sort of mineral/fertilizer buildup.

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CrazyBoutPlants17

Does anyone know why the leaves at the base of the stems on my Tradescantia Zebrina (inch plant) are paling?

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Bella56

Does anyone know what could be causing this damage to the leaves? It’s only happening to the older larger leaves.

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KMS

Edema!! Does anyone know how to treat this? I haven’t watered it for maybe 2.5 weeks now.

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anaes

Anyone else having problems with fungus gnats? I keep getting them in the same plants (begonias) that I repotted with MiracleGro all potting mix. They have sand on the top and their draining holes are covered. I don’t know what else to do. I’m also watering them with mosquito bits, but they keep coming back. Help!

Iris

I was so happy with my first plant flourishing but looks like it was short lived. My jade is developing tan spots on leaves. I’m in zone 10a but it has been unusually cold and cloudy this year. I may have overwatered a couple of times but haven’t watered for last 2 weeks. However, it is getting worse. Is it the 80% humidity combined with my over enthusiastic overwatering or is it something else? Please help me save it!

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Ada

Does anybody have any experience with these white patches on money trees? I just got this one recently and I want to know if it’s something I should take action on. The roots aren’t growing out of the bottom and it’s definitely not in direct sunlight.

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Ava

Not sure if u can see it, but I just took a good look at the soil of this plant, and I noticed this thing that looks similar to a spider web, does anyone know what it is? Pls help.

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Amy

Croton help. I’ve had this Croton for 6 or so years and finally decided to repot it. It’s been two weeks and it started drooping after 3 days. Any ideas?

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ThePropagatrix

Feltbush help! I got this guy a couple of weeks ago from my favorite local nursery. Some of the damage is physical, but I’m concerned about the brown/black spots that are developing. This is on my patio in Los Angeles (zone 10a). It accidentally got watered an extra time but other then that I don’t know what it could be.

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Max

hey all. i recently got this alocasia polly / alocasia amazonica and i also had recently watered it after bringing it home and the leaves are now looking like this. so i was just wondering if anyone knew what the cause of it is?

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Smallbeetoes

Does anyone know what would cause marks like this on succulents?

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Em

I recently repotted my monstera adansonii, and now about a week later it looks like this, almost all of the leaves have some kind of damage, these are just the worst. Is this pest damage? Fungus? My best guess rn is thrips but ive never dealt with them before. Help please!

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Hannah

I am using a neem oil insecticide/fungicide to treat my dwarf fiddle leaf fig that has mealy bugs. Am I supposed to mist/spray down the plant and leaves with water a few minutes after applying or just leave it be? Thanks in advance for any advice!

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Monstera_Man

I have this beautiful tradescantia that recently started yellowing leaves. Any idea why? It’s healthy enough to start flowing! And I know tradescantia can be finicky and naturally lose too leaves. Maybe more watering? I do see some roots growing out of the drainage hole. More space?

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Penny L

Does anyone know what the tiny little midges/flies are that hang out around some potting mix? I have my pointsetta and my money plant in the same potting mix, and they both have teensy little flies around them. The flies don’t seem to be on the plant—just the soil. Is it harmful, and will it affect my other plants? Can I treat it with a pesticide? I tried the yellow sticky traps, but they don’t get them all. Any advice is much appreciated!

Leafmealone

I’ve been battling with my Dieffenbachia since I brought it inside last fall. I’ve had to trim a lot of it because of yellowing/dying leaves. I wasn’t sure what the problem was but I just noticed these “Y” shaped white things on the underside of some leaves. I’ve researched but nothing I see looks like what I have. I’ve dealt with mealy bugs on other plants and these don’t look like that. Has anyone ever had this before? I just sprayed it down with neem oil hoping it will help.

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