Questions tagged [fungus]

For questions about growing fungi or curing fungal diseases.

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1answer
17 views

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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1answer
17 views

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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0answers
18 views

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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1answer
10 views

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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2answers
58 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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1answer
30 views

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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2answers
29 views

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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0answers
11 views

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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1answer
19 views

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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33 views

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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21 views

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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2answers
124 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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0answers
20 views

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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2answers
40 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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2answers
30 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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0answers
38 views

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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1answer
30 views

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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1answer
43 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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2answers
204 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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28 views

Unknown Fungus - good or bad?

Anyone know what type of fungus this is? It’s about an inch tall, has a very thin top that’s nearly transparent with black veins and a hollow white stalk. I found it in one of my rose pots a couple of ...
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1answer
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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2answers
36 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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54 views

Fiddle leaf fig root rot or bacteria

I recently moved to a new home and my fiddle started showing signs of stress and infection. At first I thought it was root rot but she also started yellowing some leaves and a few leaves have spots in ...
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1answer
54 views

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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1answer
66 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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2answers
56 views

What is this very white fungus?

This was found on the trunk of a friends lilac.
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0answers
36 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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59 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. ...
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1answer
286 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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0answers
31 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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1answer
76 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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1answer
75 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 ...
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1answer
1k 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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1answer
76 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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1answer
113 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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2answers
33 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
212 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
281 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 ...
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0answers
59 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
37 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,...
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2answers
205 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 ...
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0answers
37 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
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1answer
37 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 ...
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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 ...
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1answer
203 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 ...
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1answer
210 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 ...
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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
111 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 ...
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0answers
21 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 ...

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