Questions tagged [fungus]

For questions about growing fungi or curing fungal diseases.

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Rubber mulch for artillery fungus - good idea?

We have a small bed in the front of our house as shown below. It has had artilery fungus for the last few seasons and I want to completely be rid of it. I am considering putting in rubber mulch, ...
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Brown tips on young Norway Spruce

Do you think I should treat these young Norway Spruce trees for a fungus or is this browning just from winter or transplant stress? We live in Minnesota so we have long winters. We planted a long row ...
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New Fig Tree Leaves Dying

Our fig trees budded and new leaves emerged, but after about a week the edges turned brown and the leaves have curled up and died. Only two leaves are left on one of the trees, though new buds are ...
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Spots on Shady Lady leaves - steps to improve

I recently had a Shady Lady tree, (Bucida buceras) the black olive tree), installed in my yard. This was the biggest and best-looking tree at the nursery but I am now realizing why it might have been ...
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Cayenne-type chili plants: yellow spots on leaves and 'spider web' on stems

It has been a while my chili plants show these symptoms. It seems relatively under control as they are not dying or dropping many leaves, but I'd still like to fix the issue if possible. Symptoms are: ...
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Help identifying the pest/disease on my Schismatoglottis

I've attached a pic of the leaf of a Schismatoglottis I got recently. It's otherwise happy, healthy and flourishing but a few weeks after new leaves emerge they are covered in a slightly brownish ...
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White covering on leaves of tulsi (holy basil) in winters

Full gallery Facing the same problem in 3 of my 4 tulsi plants Looks like a fungal infection to me, please advice. Happening in winters. It appears to have spread to 2 plants from one. Other non-tulsi ...
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Off white rubbery growths on my willow tree in the uk

I have off white rubbery growths on the bark of my willow tree. It has happened in the last few weeks with the wet weather.
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What is this white stuff on my succulent’s leaves?

I noticed this stuff on my succulents after a watering. They are indoors by a south facing window so they get plenty of light per day. I’ve included two close up pictures of the affected areas. I don’...
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What is this orange? pus growing on my Palm Tree?

What is this orange pus growing on my Palm Tree? We have two palm trees that are side by side, 1 is infected with this pus and the other is not. Is this a fungus? If so, which kind. Can I cure this ...
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A white fungus has started growing on the bark/knots of one of my tree. Anyone know how I can treat it naturally?

Anyone know how to treat this white fungus on my tree? Would like to save it and treat naturally if possible and avoid having it spread to the rest of the grove.
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Mosaic virus on pothos/hoya plant? Please help

My pothos plant has really strange yellowing/speckling on the leaves (the leaves are yellowing with speckles of green). I have had a thrips problem recently and am concerned the pothos got the virus ...
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Ficus decora leaf spots and dead tips

apologies if this question has been already asked elsewhere. I have some black spots underneath the leaves of my ficus decora, which I presume are a fungal infection (cercospora?) Could someone please ...
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2 votes
3 answers
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What can I grow in my wet, moldy, clay soil that covers about 1/2 acre of my yard?

I am in the southeast and despite putting down gypsum, overseeding and aerating, I can't get grass to grow in much of my yard. I have stopped watering this area all together because it stays really ...
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What would cause cherry tree leaves to dry from middle outward?

I have a 3-year-old cherry tree which is losing its leaves early this year. They appear to be drying and wilting from the middle (large vein) outward. What would cause this? Notes: Located in ...
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Mango leaf disease

My mango plant has various symptoms so I'm not able to pinpoint the disease. Is it just a result of anthracnose or is it a lesser problem? I sprayed some Bonide copper fungicide. Is there a better ...
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Yellow/Black Spots on Tomato Leaves

I've grown a tomato plant in a Home Depot bucket for about 2 months now. It is an heirloom species called Dwarf Almadine. Recently, the weather has been really damp (mushrooms popping up from the ...
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How to treat lawn diseases (brown patch, leaf spot, melting) without fungicides?

Google tells me "stress your lawn", meaning cut the water for some time. But wouldn't that hurt it even more, given we are in mid summer? I live in Calgary, AB - Canada. Fungicides are a no-...
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Lemon Meyer - unidentified disease

my young Meyer lemon tree has been growing something I though was bark. However it is not bark but brown spots with tiny white dot in the middle. They come off easily as you can see some of them on my ...
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Palm leaves turning brown

I have two indoor palm plants plant 1 : I water it adequately and keep it inside room with adequate bright light not direct sunlight, but the leaves are turning yellow and some places I see rusting ...
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1 vote
2 answers
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How do I tell the difference between fungus and natural coloration in zucchini?

I've read that white patches on zucchini can be natural, powdery mildew, or another fungus. How do I know which? 2 of my zuchinni have large patterns of white areas on all leaves older than about a ...
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2 answers
68 views

What is this yellow fungus growing under my plants?

I don’t know what’s going on with my plants. Does anyone know what this? What needs to be done?
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1 answer
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What is this thing on the leaf of a Highbush blueberry (Vaccinium corymbosum) bush near a pond on Long Island, NY?

My first thought was some kind of insect eggs, but then it seemed reminiscent of some kind of fungal fruiting body.
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Can I reuse the lower portion of soil or pot that had fungus gowing in it?

I had a plant with a fungus growing in the soil. I have since replanted the plant with new soil and in a new pot. Since the old pot was rather big, I am wondering if I could reuse some of the soil in ...
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Pea plants- slug damage or something I did?

Can slug damage cause the bottom of pea stalks to die? All the bottom leaves are going black and crispy and falling off. I’ve seen another post where it said root rot but the planter they are in has ...
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Identify sludge/fungus that appeared overnight

I got up this morning to water and this white foamy fungus looking thing was in my garden. It wasn’t here yesterday so this is quite a bit of growth overnight. I don’t believe I’m overwatering. It’s ...
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What are these random mushrooms in my garden?

I check the garden every day for pests and to water, but seemingly overnight these random mushrooms (or whatever they are) have sprouted up. Is this dangerous? What are they? And why are they there?
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Any treatment for Phragmidiaceae on blackberry bushes?

I've noticed this on a few of the plants but doesn't seem to be affecting all of them. Is there any treatment for this? I've only read about prevention outside the growing season.
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1 vote
2 answers
147 views

Apple tree die back

I have a mature apple tree (well, several actually) in my back garden which is suffering from some sort of dieback. The leaves turn brown and shrivel and die. I've been cutting out all of the dead ...
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1 vote
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Brown spots with black edges on tomato leaves

I've got some brown spots with black edges on my tomatoes leaves - looking at other questions on this site with similar problems, none of them look quite right to me. I've attached pictures below. ...
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1 vote
2 answers
364 views

Black spots on Fatsia japonica

does anybody have an idea about these small black spots on a lower leave of Fatsia japonica?
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2 votes
2 answers
179 views

White dots on pepper plant leaf. Which nutrient/fungal problem?

Consider the attached pictures of some leaves of my pepper plant. There are white dots on the backside of the leaf which correspond to regions of mild translucency on the face of the leaf. Further, ...
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Little indentations on tea plant

I spotted these on 2 new leaves of my camellia sinensis, the other leaves don't have these at all, its inside against a western facing window, watered every 4 days fertilized every 2nd month, I want ...
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1 vote
1 answer
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what kind of fungus is this

I did some research but I want confirmation because I'm really not sure. I live in northwest Oregon and I found it growing nearby our barn, on the ground underneath the eave of the roof.
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2 votes
1 answer
68 views

My crabapple tree that was planted in 1987 has the same thing on the base of the tree and then it is losing a lot of branches on one side of it

My crabapple tree has dying branchs with bark falling off, green mossy patches and the bottom of the trunk has a large mushroom on it. What can I do to prevent this huge tree from dying. I will ...
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2 votes
2 answers
4k views

What are these white spots on my cactus? Note: they are not cochineal bugs (as I know them)

I've had this cactus for about two years now, and this winter in began showing these white, flat dots that look like splattered paint. They can be scrapped off, but there's no sign of an insect or ...
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1 vote
1 answer
32 views

Is this a fungal problem on my oak leaf?

I have cork oak seedling where the older leaves (last year's growth) start looking like this: Though wind resistant, it falls off if slightly touched. Go figure. But I don't think the plant is in ...
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2 votes
2 answers
48 views

Is it safe to use wood from a tree if it has a fungal infection?

Some ash trees have been cut down near where I work. I was thinking about taking some of the log sections for woodworking material, but I heard something suggesting that these trees might be getting ...
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0 votes
1 answer
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Draceana marginata extreme leaf-shedding

I’ve had this Dracaena marginata for over 8 years now (so I’ve got quite attached to it). It has always been fine no matter how I’ve treated it. I’ve forgotten to water it and overwatered it over the ...
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1 vote
1 answer
140 views

Rubber plant leaves turning yellow

I recently bought a rubber plant and repotted it as it was root bound. I'm noticing the leaves are turning yellow with black brown spots on them. I'm watering fine and gave ample fertilizer. It's been ...
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2 votes
2 answers
85 views

What is this very white fungus?

This was found on the trunk of a friends lilac.
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1 vote
0 answers
41 views

What’s wrong with my snake plant leaves?

I recently discovered the tip of my snake plant had turned blackish and cut off from the rest of the plant, basically dead, the dead part feels moist and floppy. I don’t know what’s wrong if I’m under ...
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Brown spots on avocado tree leaves

I transplanted my 7 years old avocado tree two months ago and since then it's condition continually worsened. First, the leaves lost turgor for a few weeks and I thought that this was over. ...
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3 votes
1 answer
465 views

What is soil mold and how to kill it

I used neem oil spray on a succulent that had mealybugs. 5 days later, This fuzzy, stringy white mold appeared all over the soil. It stunk, and I hated it. I sprayed the mold with neem oil, and the ...
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3 votes
0 answers
34 views

Which disease could be turning the leaves on my tomato plants BLUE?

The leaves are very dry (though the plants were watered regularly and consistenly), have this bluish tint and those brown spots. Googled, but found nothing, which is weird. What could this be?
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1 vote
1 answer
82 views

Do truffles grow from the air?

I found an ancient text which states that truffles do not "grow (derive their growth?) from the ground". I have found two medieval opinions on what that means: They "don't have roots ...
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3 votes
1 answer
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Black spots with white ring around them on Zinnia leaves

We have grown Zinnias in our garden since 3-4 years, In South India . The initial batches were very healthy and robust ,with stunning flowers. but since the last 1 year or so I have noticed that the ...
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4 votes
1 answer
3k views

Monstera with tiny white flecks (spores?), large brown spots, small white dots

I thought this might be under-watering but have just noticed these small white flecks (first photo) - they can be brushed off but are covering the entire plant, even the healthy leaves and stems. They ...
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5 votes
1 answer
216 views

What is this rock-like fungus?

About the size of a rock - I actually thought that's what it was at first. The inner brown markings amazed me thinking the internals were eroded and exposed. But touching the surface with my shoe ...
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4 votes
1 answer
171 views

What caused the leaf discoloration in my Kaffir lime?

The leaves of my kaffir lime plant have the grainy discoloration which looks like a disease. I assume normal leaves would be plain dark green. I didn't see insects or aphids living or staying in the ...
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