Common Monstera pests and Diseases: How to deal with them

Got a Monstera plant at your place or in the yard? Seeing weird spots on the leaves, yellowing or wilting, or starting to spot creepy crawlies like mealybugs, scale insects, and spider mites? If that’s you, then check out this blog post! Knowing about common Monstera pests and diseases can keep these tropical vines from getting more banged up. Besides talking about ways to keep problems at bay, I’ll walk you through handling specific bug problems. So if saving your Monstera plant has got you puzzled – stick around!

Common Monstera pests

The usual suspects that mess with Monstera are Spider Mites, Mealybugs, Aphids, Thrips, and Fungus Gnats. Figuring out how to spot and deal with each of these is key to keeping your Monstera looking good.

Spider Mites

Spider Mites on Monstera

Identification of Spider Mites on Monstera

Monstera Spider mites are like the usual crowd making trouble for monstera plants. You can spot them by their teeny, oval shapes and light yellowish or reddish brown color. They might also show up as little white specks on the leaves or stems. These mites suck the plant sap, making leaves turn yellow and brown. If things get really bad, the plant could die.

You’ll know spider mites are around if you see webbing on the leaves and stems, or tiny white or dark-colored spots (that’s the mites themselves). Other clues are discolored yellow leaves, leaves falling off, and weird growth.

When checking for spider mites on a monstera plant, peek really close at the underside of the leaves as these mites love to hide in the nooks and crannies. Spider mites also breed like crazy so spotting them early and acting fast is key.

Prevention and Treatment

The best bet to keep spider mites from crashing the party is to keep the place around the plant neat and free from dust. Spritzing water on the leaves helps get rid of dust and bugs, and also gets the air moving. Keeping plants out of direct sun and heat keeps spider mites away too.

If the mites do show up, it’s best to jump on it ASAP with something natural like neem oil or garden soap. These will take out the mites but leave the plant alone. You might need to hit it a few times to totally get rid of them, so follow the directions and use as needed.

Also, make sure to clean up the mess left by spider mites and toss it far from other plants so the mites don’t move in next door. Regularly checking your monstera plant for spider mites will help you catch them before things get too out of hand.


Those Monstera plants can get messed up by pests like mealybugs. These bugs are tiny, fluffy, white critters that munch on the sap of the plant and can mess with the leaves and stems. Here’s what you can do to spot, dodge, and kick mealybugs off your Monstera plants:

Mealybugs on Monstera

Identification of mealybugs on Monstera

  1. Check out the soil, stems, and leaves for white, cottony clumps. You’ll find mealybugs and their babies here.
  2. Look for leaves turning yellow or getting curly; these are signs the mealybugs have moved in.


  1. Keep your Monstera plant happy with the right light, water, and food.
  2. Give new plants a good look for mealybugs before you bring ’em home.
  3. Stick any new plants in time-out for a few weeks before putting them near your Monstera.
  4. Keep the place around your Monstera neat and tidy so mealybugs don’t think about hanging around.


  1. Put the plant with the mealybugs away from other plants so the bugs don’t make a move.
  2. Grab a soft brush or cloth with some rubbing alcohol to wipe mealybugs off the leaves and stems.
  3. Use neem oil or bug soap on the plant to take care of any leftover mealybugs. Follow the directions on the bottle real close.
  4. Hit it again with treatment every week or so until the bugs are history.

If things get really bad, you might have to toss the whole plant so the mealybugs don’t start bothering other plants.


Aphids on Monstera

Identification of Aphids on Monstera

Aphids are those little annoyances you’ll find on all sorts of plants, monstera included. You can tell them by their squishy, pear-shaped bodies and the different colors they come in – from green to yellow to brown. Plus, they’ve got a couple of stubby antennae and might have long or short fuzz all over them.

These critters like to hang out under leaves and down at the bottom of stems. And watch out: their munching can lead to yellowing, wilting, leaves getting all curly, or even growth looking all wrong.

Prevention and Treatment of Aphids on Monstera

To keep aphids from moving in, make sure to check your plants for any signs of them regularly. If you spot them, you better jump on it fast so things don’t get crazy.

If you’re already dealing with them, no worries, you’ve got a few ways to show aphids the door. One way is to blast them with a good strong spray from the hose. Or you can go after them with bug soap or neem oil. If you want to play it cool, you can let loose some ladybugs or green lacewings in your garden to feast on the aphids. If you’re feeling spicy, you can also try scaring them off with garlic or hot pepper spray.

So to sum it up, spotting and dealing with aphids on your monstera is key if you want your plants looking good and bug-free. Mixing up keeping an eye out and using some bug-fighting tricks can keep your green friends safe and rocking.


Thrips on Monstera

Identification of Thrips On Monstera

If you want to catch thrips on monstera, you gotta look at the grown-ups. These bugs are skinny, shaped like cigars, with two pairs of wings that have these long hairs sticking out. They might be yellow or green or even brown and black. Oh, and they’ve got long antennae, two big eyes, and chompy mouthparts. Thrips on monstera can get up to 2 millimeters long, so you can spot them without squinting. Now, their babies are a bit trickier. They’re all see-through and yellow with black spots, and their legs might be pale or darker.

Thrips can really do a number on your monstera. They nibble on young stems and leaves, and you’ll see thin, silver streaks or tiny brown spots where they’ve been. The leaves might get all ragged or twisted on the edges too. If there’s a whole bunch of them, your plant could get stunted and start growing all weird.

Prevention and Treatment

The best plan to whip a thrips problem is to keep an eye on your plants and hit them with the right bug spray if you need to. If you want to keep them from coming back, be good to your monstera. Don’t drown it with water and keep the place clean so you don’t roll out the welcome mat for them. You could even bring in some good bugs like ladybugs to keep them in line. Get on it early, and you’ll keep your monstera looking great and thrips-free.

Fungus Gnats

Fungus Gnats on Monstera

Identification of Fungus Gnats

Wanna stop fungus gnats? First, you gotta know what they look like. These little guys range from ⅛ inch to 1/5 inch long, and they’re usually black or gray with long legs and kinda see-through wings. But don’t expect to see them flying around much.

You might also find tiny white baby gnats in the soil or spot adults zipping around your houseplants. Heads up, though, they look a lot like fruit flies, so make sure you know what’s really bugging your plants.

Preventing Fungus Gnat Infestations

Now, the best way to keep fungus gnats away? Don’t let ’em get started. Water and feed your Monstera just right—too much water is like rolling out the welcome mat for these pests.

And keep things tidy. Clean up any dead leaves or junk, because that’s like a dinner bell for adult fungus gnats. Want to give them the boot? Try some organic bug-fighter like neem oil. It’ll send the gnats packing and leave the good bugs like ladybugs and spiders alone.

Treating Fungus Gnat Infestations

If those sneaky fungus gnats still get to your plants, don’t freak out! You can beat ’em without bringing out the big chemical guns.

  • Got a shallow dish? Fill it with apple cider vinegar or beer, then put it near the plant. The gnats will go nuts for it and then—splash! They’re stuck.
  • Or go all sci-fi and use beneficial nematodes (tiny worm-like things). Sprinkle ’em on the soil, and they’ll wipe out the gnat larvae without hurting the good bugs.
  • If nothing else works, you might have to break out the serious stuff like pyrethrin or imidacloprid. Just follow the directions on the package, and those gnats will be history.

Common Monstera diseases

Monstera plants are usually chill and easy to look after, but they can catch some nasty stuff like Root rot, leaf-spot disease, botrytis, rust, powdery mildew, and southern blight.

Root rot

Monstera plants are famous for their awesome tropical leaves and being a breeze to care for. But they can get hit by root rot, a funky fungus that comes from too much water, lousy drainage, or just not enough air in the soil. If your Monstera’s got the root rot blues, here’s what you can do to fix it:

  1. Check out the roots: Carefully take the plant out of its pot and look at the stems. Good roots are firm, kinda white, and spread out. Root rot makes ’em go mushy, dark, or black, and they might even stink.
  2. Snip the bad roots: Grab some pruning shears or a clean, sharp pair of scissors, and chop off the sick roots. Keep cutting until you get to the good stuff, then toss the bad ones.
  3. Let the plant chill for a bit: Give the plant and the good roots a few days to dry out. It’ll help stop the rot from spreading.
  4. Find a pot with great drainage holes and pack it with fresh soil that drains well. Dig a hole in the middle, pop the plant in, and make sure its roots spread out nicely.
  5. Water it just a little after replanting, and let the soil dry out a bit between waterings. It’ll make it less likely for the plant to drown and get root rot again.
  6. Keep an eye on your plant: Watch your Monstera for signs that the root rot’s coming back, like yellowing or droopy leaves. If things look iffy, do the above steps again to keep the rot from spreading.

So basically, if you catch root rot early, chop off the sick roots, and repot the plant in some new soil that drains well, your Monstera will be good to go. Follow these tips and keep an eye on your plant, and you’ll get to enjoy those gorgeous leaves for ages.

Monstera Root Rot

leaf-spot disease

Leaf-spot on monstera is a pretty usual fungus issue that can mess up your plant real quick, or even kill it. You’ll know it’s leaf-spot if you see brown or tan spots with yellow rings on the leaves, or weird-looking stuff along the stems and leaf joints. If you ignore it, leaf-spot can cause the leaves to fall off, the plant to wilt, and eventually, it’ll die.

Leaf-spot disease on Monstera

The best way to deal with this ugly disease is to stop it before it starts. That means keeping the leaves dry, no puddles of water hanging around, getting some good air flow, and snipping off any bad-looking leaves ASAP. And don’t forget to clean your tools before you start cutting, so you don’t spread the disease.

If your prevention game isn’t strong enough, you can fight leaf-spot with a fungicide. The ones with chlorothalonil or mancozeb seem to work the best for monstera plants. Just follow the instructions on the bottle, usually every week or so until it’s gone. And keep an eye on your plant – you might need to repeat if it’s not getting better.

Along with fungicides, just being nice to your plant can help too. That means the soil should be damp but not like a swamp, don’t go crazy with the fertilizer, and keep the dead leaves and other junk away. If your monstera’s in a pot, give it some new soil every couple of years to keep those nasty bugs away.


Monstera rust’s another fungus that you don’t want. It’ll make orange or brown spots on the bottom of the leaves. If you let it go, the leaves might turn yellow and fall off early. If your monstera’s got rust, here’s what to do:

  1. Get rid of the sick leaves: Snip off any leaves that look bad. This will help stop the rust from spreading.
  2. Fungicide to the rescue: Find a fungicide that’s made for indoor plants, and spray the tops and bottoms of the leaves, just like it says on the label.
  3. Get some air in there: Fungus loves wet and stuffy places, so get some air flowing around your monstera. A fan or an open window should do the trick.
  4. Watch the water: Too much water can make fungus happy, so don’t drown your monstera. Let the soil dry out a little between waterings, and try not to splash the leaves.
  5. Drainage is key: You want a pot that lets the water out so it doesn’t sit in there and make more fungus. Make sure your pot’s got some holes for drainage.

Monstera Rust disease

Powdery mildew

Powdery mildew’s this annoying fungus thing that can bug your Monstera plant. Wondering if your Monstera’s got it? Check for:

  1. White or gray dusty stuff on the leaves, stems, or even flowers.
  2. Leaves looking all twisted or curling up from the infection.
  3. Infected leaves going yellow and maybe dying off.
  4. You can wipe that powdery stuff off easily with your finger or a cloth.

Powdery Mildew on Monstera Leaf

Most of the time, you’ll see this white, dusty-looking stuff on the leaf surfaces. The fungus can also make the leaves turn yellow, wilt, or just grow funny.

Don’t let it sit there, or it’ll spread like crazy and really mess up your plant. If you see any signs of powdery mildew, jump on it quick.

To keep it away, make sure there’s enough air flowing around and try not to get the leaves wet when you’re watering. If you can, water the soil instead of spraying the leaves. Keeping them dry will stop the fungus from moving in.

Found some powdery mildew on your Monstera? You’ve got some ways to fight it. Try a spray or dust made to kill fungus, right on the sick parts of the plant. That should stop it from spreading and help your plant get over it. You can also try neem oil or baking soda; they can help too.

Tips for maintaining a healthy Monstera environment

Want to keep your Monstera plant doing its thing? Here’s how to take care of it:

  1. Make sure the soil’s damp but not swimming. Let it dry a little between waterings so you don’t end up with root rot or other bad stuff.
  2. Give it lots of humidity and some bright but not direct sunlight. Monstera’s love moist air, so spray the leaves now and then. And keep them out of the hot sun, or they’ll get burned.
  3. Cut off any dead or hurt leaves to get new ones growing and keep bugs away.
  4. Keep an eye on it for any pests or sick-looking stuff. If you see any bugs, wipe them off with a cotton swab dipped in rubbing alcohol or soapy water.

Do this stuff, and your Monstera should stay healthy and free from pests. A little love and care, and you’ll have a happy Monstera for a long time.

Watch out, though: common Monstera pests and diseases can really do a number on your plant if you don’t take care of them right away. Keep an eye out and do what you need to keep them away. Your Monstera will be growing strong. For more tips on taking care of your Monstera, check out Famiplants.

Hi, I'm Cathleen Clemens. I graduated from Cornell University with a degree in plant science. I gained detailed knowledge about various kinds of plants and how to properly care for them. My experience has enabled me to easily detect any issues such as pest infestations, nutrient deficiencies, or signs of diseases in the plants.

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