Questions tagged [fungus]

For questions about growing fungi or curing fungal diseases.

Fungi (singular: fungus) constitute a complete biological kingdom (ie. the same level of classification as "animals" and "plants"). Fungi are divided into Eumycota (true fungi), myxomycetes (slime molds), and oomycetes ( molds).

Mycology (the study of fungi) is often considered a branch of botany, although in reality fungi are more closely related to animals than plants.

Fungi are rarely visible as they feed on and dead matter. They often only become visible when they produce a fruiting body such as a mushroom or mold.

Many kinds of mushroom are , and a gardener can grow mushrooms for eating. Questions about growing mushrooms should use the tag.

Fungi can also pose problems for gardeners in the form of various plant and molds, and will often look like a viral or bacterial infection. Use this tag for all questions about dealing with infections.

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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?
brandon
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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 revealed it was a little bit slippery, firm and a…
Yasin
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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 cant figure out if its rust fungus, thrips or…
user624631
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What is this white fuzz on my oak tree?

Do you have any idea what this is on my oak tree? We are in the middle of a drought in Central Illinois and I've been seeing this on the back of my leaves.
Kyle
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Yellow growth on plant roots

My indoor Monstera plant has this weird, lumpy yellow growth around the roots, can anyone tell me what it is and how to treat?
Lily W
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Mycorrhizae Innoculant. When/where/on what do I use this?

I saw a video of a guy using this symbiotic fungus powder on legume root balls that he placed in a green manuring bed. Is there a point to using this stuff in general? Right now I'm a few days away from planting black/raspberry bushes from pot to…
MathCrackExchange
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English Ivy plant dying, with white spots at the base

I have a four to five year old English Ivy plant with up to 10 feet (3 m) long vines. Three months ago I changed its pot and it remained healty for a while. Now, all of a sudden, its branches have started to dry out and die one by one. There is a…
Ashar
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Is a virus, or something else, causing my tomato leaves to become shriveled, yellow and wrinkled?

Information: two tomato plants - one is some kind of a plum tomato, and the other is a black tomato. the plum tomato's seed was taken from a freshly cut plum tomato (which was bought at the supermarket). the plum tomato was planted and grown…
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Identify brown fungus growing on dead branches of an Escarpment Live Oak

I had a dead branch fall from one of my Escarpment Live Oaks in a storm yesterday. It has these brown mushroom-like growths on it. There are 4 or 5 growths like the one pictured on the 10-foot section that fell. I only see them on this and one…
RhinoWalrus
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Need identification on this growth on cherry & possibly plum trees and possible remedies

It's what I like to call The Alien Fungus, the plants don't seem to be happy about it, but they do give fruit - it grows in continental Croatia, Europe, typical yearly temperature range -20 to 40 and high humidity with heavy clay (surrounded by an…
bbozo
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Exposed roots in a juniperus bonsai, plus probable fungi problem

A friend of mine has a juniperus bonsai similar to this, but it is not doing well recently. I noticed its top roots are now outside of soil, which I find not good, and I am about to suggest my friend adding a thin layer of a good substrate to cover…
VividD
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Pear tree leaves are turning black

I planted some pear seedlings this winter. They're now in leaf and some of the leaves are not looking so good. Does anyone know what this is and how to fight it?
Boris K
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Sterilise or pasteurise oyster mushroom substrate, why not microwave?

From what I've read, when you grow oyster mushrooms you can either sterilize or pasteurize the substrate, and pasteurization is supposed to be better because it preserves micro organisms that help reduce contaminants. Recommendations for…
Jimmy Widdle
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Avocado leaf problem

The leaves on my 1 year old avocado plant are showing some weird almost dusty grey spots near the veins. The leaves stay like this for a while, then they start to curl inwards/down get really crispy and fall/break off from the plant. The plant only…
Kevin S
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Help me treat a chili plant against white fungus/insect

My chili plant is getting white fungus on its stem. Two days back I saw it. Another plant also seemed to be in same situation and it died today. Today I watched it carefully and it was a white bug sitting on stem. I didn't take a pic but I pulled…