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Gardening and Landscaping Stack Exchange

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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How to prevent avocado from drying out indoors?

I have an avocado plant that has grown indoors since it was a pit. It grew first in a badly insulated, north-facing, wet and cool house, where it grew splendidly. After I moved it to a well insulated house with central heating and lots of light, the…
neydroydrec
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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 remember the variety, it was a very long type of…
Peter Turner
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Is this heavy blue-green growth on my tree trunk and branches a form of lichen?

I have a tree with a fairly heavy growth across its trunk and branches; I suspect that it's a form of lichen but I'm not sure. Is this something that will negatively affect the growth or health of this tree? Should I spray it down or leave it be?
Mahmoud Al-Qudsi
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Please identify this green jello organism

I live in Okinawa, where the climate is sub-tropical, somewhat like Hawaii or Florida. The green jelly stuff shown below is fairly common in my neighborhood, and has recently started to appear in my garden. I think it’s disgusting, and I’d like to…
bubba
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What do I do about the whitish powdery mold on my peonies?

Very early this year (starting in mid-May) my peonies' foliage was covered in whitish-gray powdery mold. What is it and what if anything should I do about it?
Scott Stafford
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What are these brown, cap-shaped mushrooms on my birch tree?

I live in Massachusetts and have several birch trees in my yard. One of them has brown, cap-shaped mushrooms growing in groups up and down the trunk. As you can see, the tree has a big crack in the bark. What are these mushrooms, and are they…
Sue Saddest Farewell TGO GL
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What is this white growth on my cactus?

I have several cacti growing in my yard and one (t. pachanoi, if it matters) has developed a white layer across the top of the plant. It is very fine and looks almost sandy, like perhaps a mould or fungus. It does brush off fairly easily…
Mark McDonald
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Can I eradicate blackspot on roses with a winter pruning?

In mid-winter, I pruned my standard roses back harshly. Black-spot can be a problem on these roses. The pruning is such that they have hardly any leaves. The remaining leaves do not have any black-spot. Should I spray now to remove any remaining…
WW01
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What is this 'bleeding' mushroom?

I photographed this weird looking fungus growing out of an open cut in a tree (not sure what type of tree it was) on my parent's property last weekend in central Texas after some heavy rain. The mushroom was dark brown on top, with orange-colored…
p.s.w.g
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What are these small white balls that appeared on the soil in my greenhouse?

As a pre-emptive starting note, there are a lot of questions with similar titles but none I could find with pictures looking the same to what I have here. Around a week ago, I applied lawn clippings to the surface of the soil in my greenhouse as a…
F Chopin
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What are these small growths on my huckleberry?

My huckleberry branches are growing through these. Is it a fungus? Is it some kind of tumor? these grow wild around my cabin in southcentral alaska leaves appear to be incorporated into the thing. here is a cross-section of the thing.
user18116
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Why do my tomato leaves look powdery?

I have a threesome of tomato plants planted in on my porch. All three have some leaves that seem to be a bit white and powdery. One of the leaves has even started to turn a bit brown. I don't think this is blight, I'm pretty sure I know what that…
wax eagle
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Is this weird glob of brownish stuff a fungus?

I was doing my daily inspection of my plants I noticed this weird glob of stuff in the pot of one of my trees. I'm trying to figure out what exactly this is, because I've seen the same thing in another pot about a month ago. Is this some kind of…
Ashley Grenon
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Is this powdery mildew on my tomato?

Just noticed this on my store bought plant (not grown from seed). It's now fruiting, and I don't see any white spots on the leaves. Update: 25 Feb 2016 with close up of the stems and an more distant view of the plant health
Graham Chiu
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Is my mint plant dying or diseased?

About a week ago I decided to propagate a healthy stalk of mint that I had bought from the grocery store. The roots appear to be healthy and full, but two of the leaves appear to be abnormal. One of them is brown, and the other has a light…
AN1
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