Questions tagged [fungus]

For questions about growing fungi or curing fungal diseases.

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2
votes
2answers
46 views

What is this very white fungus?

This was found on the trunk of a friends lilac.
2
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0answers
27 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 ...
2
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0answers
40 views

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. ...
3
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1answer
101 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 ...
2
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0answers
18 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?
1
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1answer
68 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 ...
1
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1answer
31 views

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 ...
4
votes
1answer
240 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 ...
5
votes
1answer
45 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 ...
4
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1answer
33 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 ...
0
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2answers
31 views

Avoid fungus on top soil (indoor plant)

I’m growing some sweet potato vines inside my house out of a well-draining tin pot. Where the vines cluster together, naturally less sunlight reaches the top soil and I’ve got little white mould spots ...
4
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2answers
96 views

Diagnosing white fuzz on kale. Is this powdery mildew?

I think I'm dealing with powdery mildew, but I want to confirm that diagnosis. Context: I'm in Portland, OR. I've got several raised beds with a couple kinds of kale, broccoli, brussels sprouts, some ...
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0answers
49 views

Yellowing spotted morning glory leaves

I'm wondering what's causing the leaves of my morning glories to turn yellow and develop black/brown patches, along with what looks to be like white mold, as shown in this photo: This is worse in the ...
0
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0answers
32 views

Curing avocado root rot

I have two 2 years old avocados. Sadly, they weren't feeling well last few months: leaves started to drop and side branches started eventually to dry out. After massive googling a root rot due to ...
2
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1answer
28 views

What is the fungus and is it dangerous to my watermelon plant?

When I checked on the watermelon plant today I found this odd discoloration at the soil level, hidden under the leaves right by one of the fruits. I assume this is a fungus; is it dangerous? And if so,...
4
votes
1answer
81 views

What are those brown / white spots on my cactus?

There are 3 of this same cactus sharing the pot. Only one of them is getting these spots. What could it be? Fungus? Sun burn? They are in my balcony, they don't get rain, and they get like 3-4 hours ...
18
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2answers
4k views

Why did my sweet corn kernels grow into this?

This corn is about 2 weeks premature to be picked. It had lots of green bugs and japanese beetles chowing on it, but I didn't do anything weird to it (no Ninja-Turtle ooze for instance). I can't ...
3
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0answers
27 views

White branches on citrus tree, is this normal?

I'm seeing the branches to my citrus tree turn white. When I cut them, it's all dead. Is that normal or is it a fungus or something ? Please refer to the attached photo. It's happening to several ...
2
votes
1answer
31 views

Help with spearmint plant. Potential stem rot?

I bought a mint plant a few months ago as my first plant and have been haphazardly taking care of it as best as I can. Apparently I had not been watering it enough as I read around in various forums ...
0
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1answer
25 views

Prognosis on Bracket/Shelf Fungus?

This is a fairly recent (last few weeks) development: https://www.dropbox.com/s/t2luwy7cuuss1c7/2020-07-18%2014.17.19.jpg https://www.dropbox.com/s/pcj9g72eh5sh7ig/2020-07-18%2014.17.24.jpg It appears ...
4
votes
1answer
74 views

Is this lichen or some other fungus on my palm tree?

I was pulling weeds and noticed the trunk of this palm tree in my backyard has a lot of moss on it. A google search described lichen but I’m not sure it looks the same as what the images of lichen on ...
0
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1answer
109 views

Staghorn fern back turning black

I have not been overwatering my staghorn fern, I water them at the base about 60cc every week. I don't most my plants very often and they have been stable for a year until this happened. The only ...
1
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1answer
33 views

Fungus or a boring beetle?

No idea what is causing this but it has been very rapid! I suspect a boring beetle infestation of some sort but how to treat?
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2answers
100 views

Not sure what is happening to tomato plant

Not sure what is happening to my tomato plant. Plants have been in a really sunny spot. We had been in a drought, but we’re consistently watering. Then the last few days it started raining pretty ...
2
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0answers
15 views

Hollyhock deteriorating immediately after blooming

I live in Denver, CO and last year I planted 2 Hollyhock plants in my backyard. The plants were about 1 foot tall when I put them in the ground and they are in a spot where they get full sun/plenty ...
4
votes
3answers
135 views

How effective is neem oil as a preventative measure against powdery mildew?

I regularly use neem oil in my garden to help suppress the presence of white flies, aphids and certain soft-body caterpillars. I'm curious if neem oil can be effective in addressing powdery mildew on ...
1
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1answer
22 views

Newly Transplanted Palm with Fungus Issue

Hello all. I had 2 palms put in June 9th 2020. Both of them were hurricane cut. The healthy one, not picutred here, still had a couple of fronds and looks great. The other - these photos - has ...
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0answers
15 views

Can I safely spray copper fungicide for peach leaf curl during summer?

My family has a peach tree with severe leaf curl which they did not notice; I picked up some copper octanoate (0.08%) fungicide today as soon as I noticed. With about half the leaves damaged, I'm ...
2
votes
1answer
93 views

Tiny black spots on blue morning glory plant

Does anyone know what these tiny black spots on the leaves of my morning glory plants are? It seems that the spots are only on the top of the leaf, not under. I also saw a couple on a petiole. I was ...
3
votes
1answer
1k views

Brownish yellow spots on monstera

Spots have developed on the leaves of my monstera deliciosa, and I've found nothing online that's quite like it. It's not on top of the leaf, can't be wiped off, and it's not growing in regular ...
1
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1answer
47 views

Grey spots on Clematis leaves

One of my clematis Tekla stopped growing a month ago and sort of froze in time. Its leaves started having grey spots and new growth leaves dried out as you can see from the picture below. Initially I ...
1
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3answers
1k views

White spikes under water spinach leaves

My water spinach plants are covered with these spikes. They are hard when I poke at them with a knife. They are mostly on the underside of leaves but sometimes also break to the topside. The leaves ...
1
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1answer
34 views

Morels growing in planter pot: leave them alone, or extirpate?

We have a planter with a tomato plant and a bell pepper (capsicum) plant. A few months ago, during wet weather, many morels (specifically what appears to be Morchella rufobrunnea) started to appear ...
1
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1answer
40 views

Fungus gnats and mushrooms in a Walmart strawberry plant

Two weeks I bought a $10 everbearing strawberry plant from Walmart. It looked the most alive out of all the Walmart options. I immediately repotted it into a larger pot that stays out on my balcony. I ...
1
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0answers
9 views

Spots on cucumber leaves

Two leaves from teh same cucumber plant, thinking these are two separate issues (lucky me). As seen in the photo, the lesions on the left are pale tan and don't really look like they're bounded too ...
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0answers
20 views

Is this a fungus?

I began seeing this all over a mostly shaded part of my lawn. Especially where I’ve fertilized and watering (hoping for grass seeds fo grow). What is this and what should I do?
1
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1answer
44 views

Seeking help diagnosing leaf health, pictures attached

Newly transplanted plants both appear to have unhealthy leaves. Seeking help identifying and treating said problem. Help is appreciated ty!
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0answers
30 views

Is this Bacterial Leaf spot? Root rot? Fungus? Please Help

I got this little cupcake about 2 weeks ago and since yesterday I noticed some new spots that are developing, and now my heart is sinking that it might be bacterial leaf spot or root rot and its a new ...
1
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1answer
77 views

Is it normal for rosemary leaves to have these brown spots on them?

I've had these brown spots appear on leaves that have matured, but they seem to not have any effect on the plant as my rosemary keeps on growing. I would like to know if they are some sort of fungal ...
2
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0answers
226 views

Monstera Thai - Is it Rust Fungus? Thrips? Me Being a Hypochondriac? :))

I got this beauty about 2 weeks ago and ever since she came home she has had those bumps under 3 of her leaves. This is the leaf that is the most affected. I have been googling day in and night and I ...
0
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1answer
37 views

Oyster mushrooms turn reddish brown, pretty much every time. Is this a moisture or temperature or some other problem? Pls help

This is my 6th or 7th batch of mushrooms, and they all eventually turn the same kind of reddish brown and the caps don't really form. I've managed to get a couple of good flushes, but something is ...
1
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1answer
61 views

Identify plant and problem, maybe a Sansevieria?

A friend gave me this plant but didn't know what it was. I thought it could be some kind of Sansevieria, but I'm not sure. But the problem is the leaves are getting yellow, and I don't know why. The ...
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0answers
18 views

Can Copper Fungicide be used on an apple tree with fruit already growing?

I was wondering if its possible to cover the growing apples with a plastic bag while I spray the leaves with this Copper Fungicide. I read somewhere that your not supposed to spray the Copper ...
2
votes
1answer
25 views

Fungal or bacterial infestation ? Pachypondium Lamere or Pin Palm

I have this Madagascar Pin Palm or Pachypondium Lamerei which has been attacked by some kind of fungal or bacterial infestation. I've been using an antifungal solution, yesterday was the 3rd ...
2
votes
2answers
34 views

Help with columnar blue spruce

Last summer (and after checking info on posts here) I planted three columnar blue spruce trees (picea pungens fastigata). In the fall, I noticed needles losing color and later dropping, leaving ...
0
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1answer
75 views

What are these white fuzzy growths on the soil of my lawn?

This morning, at about 11am, I went outside and found white fuzzy patches growing on the exposed soil of my lawn in a shady spot (in north-west England). It does not appear to be on the grass itself. ...
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0answers
14 views

What is this white residu on my bamboo?

I was wondering what the white thing on my bamboo leaves is. It's near a fountain so I thought maybe it's tesidu from whatever is in the fountain but now I'm wondering if it could be some kind of mold....
2
votes
1answer
39 views

Grey stem on Butterfly Palm

I'm a new plant mum and my butterfly palm doesn't seem to be too happy! I've got a grey growth on one of the main stems and it appears at the roots too - any advice what to do? I don't over water it (...
1
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1answer
90 views

Avocado leaves dying: is it the fungus or the fungicide?

My 18-month-old avocado tree has had a fungus a couple times, which I have successfully treated with a generic fungicide spray for ornamental plants (Penconazole, Dodine). It lives indoors year-round ...
1
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0answers
28 views

good or bad guys in compost bin?

I am making this compost at home using green and brown materials (egg shells, banana peel, kitchen waste, dead leaves, green leaves, etc.). While there is no bad smell or any liquid discharge, I ...

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