Questions tagged [diagnosis]

Gathering of information and facts to determine the root cause of a plant that is failing to thrive.

For questions about a plant that's failing to thrive, and where the cause is unknown (it could be disease, pest, or environmental). Ideally, the fullest possible description of the symptoms and growing conditions should be included, as well as close-up pictures of the affected part and other parts of the plant.

Model Questions

These questions are good examples of how to ask an effective diagnosis question. Note the photos and descriptions as well as the descriptive title.

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Acer tree leaves are not growing

I planted my acer tree last year and it bloomed throughout the year very well. i havent moved it at all. this year the leaves start to come, i can see new leaves bloom but they are dying before they can grow.
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Coconut palm dried leaves

I bought a coconut palm a few weeks ago. I placed it in my bedroom and it was doing fine. I noticed browning on the leaves 1 week ago. As of today,all of the leaves are dead dry. I checked the pot and the roots are fine. Well draining soil. Wet but…
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Need help diagnosing pepper pests

I am trying to figure out what is eating holes in the leaves of my plants ( habinero and sweet pepper ). Primarily the holes are in the centre of leaves, with some on the edge of one leaf. and the most affected plants have a stringy white…
Alexis P
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What has happened to my hydrangea

I brought this hydrangea plant from a local nursery it was a lovely bright blue when I planted it into the ground. It became like this after a week or so. Any advice to what could have happened and what I can do?
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What are those tiny potato looking things on morning glories?

I’ve encountered small brown blobs growing off of some morning glory vines. They look and feel rather like potatoes, but they’re only about a centimeter across, and they are above ground. Is this a disease, or is the Morninglory supposed to produce…
TheLabCat
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How to revive my olive tree :(?

I bought a 2m olive tree (see first picture) and got someone to repot and prune her. Unfortunately I think he didn’t do too great a job (second picture). Her leaves have lost their color and are brown, dry and curling, although they don’t fall off…
casi92
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What are these yellow spots on the leaves of Arabian jasmine?

My arabian jasmine plants have these yellow spots on the leaves. These appear as a few tiny speckles on a leaf and then slowly (in about a week ) expand to large spots that eventually cover all the leaf. The leaf then dries out and falls off. I…
paki eng
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Mint with white / yellow spots and eaten leaves- advice on how to treat?

Any help identifying what's going on here and how to help is much appreciated!! This is mint I bought and potted. It's grown quite a bit but I am noticing these white / yellow flecks, brown spots and also leaves that are being eaten. I am assuming…
Becky
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Azalea dieback issue

I’m living in Melbourne , Australia and have recently noticed over the last month or so a large area of dieback shrivelled brown leaves on a clients Azaleas plants. A pH test has a returned a neutral(7) pH. Other azaleas in the hedge appear to be…
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Problem on stem base of tomatoes and peppers

I'm a beginner gardener growing tomatoes and peppers from seed for the first time. I need some help diagnosing a problem on the base of the stem of most of my plants. I've been watering my plants once a day during the last month and a half. I…
Marc Sola
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Is this cactus being overwatered, underwatered or ill?

Can anyone please tell me what’s up my with my cactus? Is it being underwatered, overwatered or disease? Or could it be cold? Thank you very much!
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My tomato seedlings seem dead. Their stems have fallen and have sort of dried up. Is there a way to revive them?

Its stem has lain on the soil and looks weak. The first leaves are there but appear wilted.
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Indoor Mango leaves drooping and brown

Environment: I have been growing a mango plant indoors from the pit in a clay pot for roughly 2-3 months. I live in Canada and it is currently Winter. I have a 6000K grow light which points directly at the plant. It is also sitting on a window…
ghDev
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Brown around edge of Avocado leaf

I have been growing an avocado tree from the pit indoors for roughly 6 months. It seems to be growing strong as it has beautiful large leaves and many new sprouts (after I pruned it). I also have a 6000K grow light which I am using since the window…
ghDev
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Hibiscus pest question

Any ideas what pest is plaguing my hibiscus? I kept it outdoors in central New Mexico until about 3--4 months ago when the temperature went below freezing. It's been inside since. I've had it for nearly 2 years.
BaronFiner
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