r/plantpathology • • 1d ago

Spots on Thai chili leaves

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3 Upvotes

These spots show up on the leaves pretty much as soon as the leaves are produced. They dont seem to be hurting the plant, it flowers and produces peppers. Just recently trimmed it into a bonchi, but the spots were there for the entire summer. Indoor plant, no other indoor plants seem to have any signs of it.


r/plantpathology • • 1d ago

What causes colored lines on leaves?

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2 Upvotes

r/plantpathology • • 2d ago

What are these bugs?

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1 Upvotes

r/plantpathology • • 3d ago

Tree Disease!!!

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1 Upvotes

This is black and white slime flux! It does not kill the tree but it is small amounts of decay and makes the tree less strong against other diseases! Such as Sky potatoes!


r/plantpathology • • 3d ago

Is this anthracnose (just like my tomatoes), but in Okra. Central Virginia

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1 Upvotes

It also looks like maybe my runner beans have similar lesions.


r/plantpathology • • 5d ago

Water bamboo sighting - potentially ecologically devestating

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7 Upvotes

Someone please tell me I’m wrong on this - I’ve noticed a huge increase in prohibited water bamboo sales (aka jiaobai 茭白, Zizania latifolia infected with Ustilago esculenta) being sold both in Asian grocery stores and online on the USA. If the associated fungus Ustilago esculenta escaped and successfully infected American wild rice (Zizania palustris/aquatica/texana), it could devestate American wild rice stands


r/plantpathology • • 5d ago

What is wrong with my hydrangea?

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1 Upvotes

About a month ago I landscaped my driveway and added 10 plants. All of them are healthy except for the one in this spot.

This is actually the second plant in this space. The first one died out in an odd way, one half wilting and dying about a week before the other half did the same. I removed the dead one and dug out all of the dirt in case there was a bacteria or something bad in the soil. I replanted this one and the leaves are looking rather ratty. You can see healthy looking new sprouts forming on some tips but the existing blooms and leaves look either diseased or eaten by insects. But again, there are 9 other plants including another hydrangea that is healthy and green.

Any insight would be appreciated. Thank you!!!


r/plantpathology • • 5d ago

Did a fungus cause this pattern?

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2 Upvotes

I've never really seen a dried Eucalyptus leaf with this pattern before, which is why I decided I wanted to keep it. The only explanation I could come up with is fungus but I feel like most fungi cause more random spotting/damage, not ones that follow the veins this cleanly, but I also know very little about fungi so I could be entirely wrong. This photo was taken months ago and I still have the leaf standing upright in a vase alongside dried flowers which has caused the top to bend over somewhat, but the pattern is still there


r/plantpathology • • 5d ago

Weird Fungus or Something on my Nettle

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1 Upvotes

r/plantpathology • • 6d ago

Swelling above first node in grapevine seedlings, followed by wilting and death (diseased on the left, healthy on the right)

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5 Upvotes

Anyone has an idea what this might be? I noticed some longitudinal streaks on the internal tissue (photo 4). Sympoms typically appear after a few weeks and the seedlings die rapidly after.


r/plantpathology • • 7d ago

Pests?

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1 Upvotes

Are these spots pests?


r/plantpathology • • 7d ago

Help with this Norway spruce seedling

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1 Upvotes

r/plantpathology • • 9d ago

Fungal Disease?

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1 Upvotes

Hyssop
Midwest Illinois first year being planted.
4 inches of rain consecutive days last week.
Am I looking at a fungal disease due to excessive rain or end of the year dying leaves?


r/plantpathology • • 9d ago

Disease

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1 Upvotes

r/plantpathology • • 10d ago

Identity

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1 Upvotes

r/plantpathology • • 11d ago

What kind of disease is this

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6 Upvotes

r/plantpathology • • 11d ago

What kind of fungus/illness is this sweeping through my greenhouse?

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5 Upvotes

I somehow transferred whatever this is from an outdoor magnolia tree to my lemon tree in my greenhouse. My gardener sprayed the lemon tree, it went away but has now popped up on other plants. It almost killed my lemon tree so I’m very concerned about the entire greenhouse. Thoughts on what it could be? How to treat or who to call?


r/plantpathology • • 11d ago

Fungus on tree

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1 Upvotes

r/plantpathology • • 11d ago

Mint

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1 Upvotes

I trimmed my mint plant last night and put some clippings in a jar. This morning there are a bunch of black dots all around the mint clippings. AA battery for scale. Anyone know what this could be?


r/plantpathology • • 11d ago

Should I be worrying about?

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3 Upvotes

r/plantpathology • • 14d ago

What is this?

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1 Upvotes

r/plantpathology • • 16d ago

Help, plant infestation!!

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1 Upvotes

r/plantpathology • • 17d ago

Which Huernia is this? And why are the tips turning white, and some of them developing black spots?

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2 Upvotes

r/plantpathology • • 17d ago

Dieffenbachia

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1 Upvotes

r/plantpathology • • 18d ago

Having hard time writing discussion of m.sc.thesis research in plant pathology

1 Upvotes