Questions tagged [diseases]

For questions related to plant diseases.

Filter by
Sorted by
Tagged with
0 votes
0 answers
11 views

White patches on tomato leaves

Some of my potato plants developed white patches on the leaves, concentrated around the nerves It looks like there are small spots of dark resi
user avatar
0 votes
0 answers
11 views

Does my Bird's Nest Fern have a problem?

I've had this Bird's Nest Fern for about two months and I've started noticing some brown spots around some of the edges of the plant. I've checked the roots and they look healthy and am wondering if ...
user avatar
3 votes
1 answer
49 views

Tomato leaf problem

I get this problem on my tomato leaves every year around this time it seems like. The older affected leaves get crispy after time goes by. This happens on Brandywines, Celebrities, Empires, Betterboys....
user avatar
1 vote
0 answers
27 views

Malformation of blackberry canes and flowers

One of my blackberries shows a strange malformation of some (but not all) of the flowering canes: Flower color is purple instead of white and what would usually be the forming berries is strangely ...
user avatar
  • 15.5k
1 vote
0 answers
23 views

Verbena leaves getting yellow dots and losing pigment

My verbena is getting yellow dots. It starts with a few of them and then the number of them grows until the leaf turns entirely a lighter shade of green. Comparing it to my other verbena, I think the ...
user avatar
1 vote
0 answers
5 views

Gage tree leaves turned brown

I have an Oullins Golden Gage tree which is 3 years old. This year, many of the leaves have turned brown with some holes in them. I live in South West England, UK and this happened in early spring - ...
user avatar
0 votes
0 answers
8 views

Palm tree rot , bark missing

I have a queen palm with the same issue . Bark missing and tree rot . How can this be fixed?
user avatar
1 vote
0 answers
9 views

Why are my leaves on my royal poincianas turing yellow?

so I started growing my royal poincianas from seeds and I have been noticing that their leaves are starting to turn yellow. I don't know if it was a good idea to put my mom's and and brothers ashes in ...
user avatar
2 votes
0 answers
32 views

What is the yellow stuff growing on these Mulberry trees?

My mom (located in Vancouver, BC), isn't great with technology and asked if I could try to identify what was wrong with her two Mulberry trees. I spent quite a bit of time researching and found ...
user avatar
  • 21
3 votes
0 answers
25 views

Leaf disease - new leaves on pear tree dying - able to identify from photos?

Does anyone know what is killing these leaves on this pear tree (Comice pear if that matters) and how to treat it?
user avatar
  • 171
1 vote
1 answer
18 views

what is this on my cowpea leaves?

Found this on my cowpeas. Looks like some kind of infection splashed onto the leaves, so bacterial or fungal probably. Any ideas? My best guess so far is Cercospora.
user avatar
1 vote
0 answers
20 views

Rowan tree unknown disease

So 2 years ago I have got myself a Sorbus Likjornaja a type of Rowan tree, very very very hard to come by in my area. For those 2 years, it grew splendid with absolutely no worry or issues. But this ...
user avatar
3 votes
1 answer
41 views

What are these clusters of orange dots on the leaves of my serviceberries?

I recently purchased a handful of young Running Serviceberries (A. stolonifera) online but soon after they started to bounce back from shipping I noticed these rusty colored spots on them (almost ...
user avatar
1 vote
2 answers
62 views

What are these white spots on the leaves of my fig tree?

I have a fig tree in my flat and some white spots have appeared and get more and more numerous and spread more and more over the leaves. It is not removable when rubbing with a tissue. I can't find ...
user avatar
  • 266
1 vote
0 answers
23 views

Little White Eggs on African Marigold Flower

I am in Southern New Jersey. Can anyone advise on what to do about these little white eggs on my African Marigold? Update: The sun came out a few hours later and dried up the eggs. But, the flower is ...
user avatar
  • 111
2 votes
0 answers
22 views

New Fig Tree Leaves Dying

Our fig trees budded and new leaves emerged, but after about a week the edges turned brown and the leaves have curled up and died. Only two leaves are left on one of the trees, though new buds are ...
user avatar
  • 31
1 vote
1 answer
16 views

Are these withering leaves a problem?

Some of the leaves in the center of this bush are not doing well. Is this a serious problem, and what can I do to help them bush?
user avatar
2 votes
1 answer
49 views

Crispy burnt leaves on raspberry plant

I have a handful of raspberry patches. In one of the patches of cultivar prelude the plants are showing some black “crusting” around a small number of leaves, like they were burnt. The cane and other ...
user avatar
1 vote
0 answers
20 views

Spots on Shady Lady leaves - steps to improve

I recently had a Shady Lady tree, (Bucida buceras) the black olive tree), installed in my yard. This was the biggest and best-looking tree at the nursery but I am now realizing why it might have been ...
user avatar
  • 265
4 votes
1 answer
440 views

Is it normal for young grape leaves to be reddish?

I have a red grape that I'm taking care of since one year. I don't have details about the exact type. This is in the Netherlands; we are currently getting into spring. I notice that the leaves that ...
user avatar
  • 155
2 votes
0 answers
24 views

Black spots near the roots of my Areca Plant and leaves turning grey and brown!

I have had this areca plant for about 8 months. Lately I have been noticing a lot of brown and grey leaves and even whole stems. I cut off those leaves and removed the stems from the root which were ...
user avatar
1 vote
0 answers
34 views

White spots and dried tips on key lime trees

We grew two key lime trees from seeds. They are now about 3 years old. A few weeks ago they started developing white spots on some of the leaves and some of the new shoots died off. We live in ...
user avatar
  • 151
2 votes
1 answer
38 views

Why is my jade plant behaving like this?

I purchased a jade plant online one month back. As you can see in the picture it is healthy when purchased. I am keeping it on my desk which is getting afternoon sunlight from a west-facing window. ...
user avatar
2 votes
1 answer
83 views

Cathedral Live Oak health concerns

I am considering purchasing a field grown Cathedral Live Oak, I think the tree is gorgeous and has a lot of potential but I have three concerns. I will list each concern below with supporting images ...
user avatar
  • 265
1 vote
0 answers
22 views

Yucca problem: brown spots on stem and leaves

I am new here and here is my problem and thank you for your help! :) I just noticed that my Yucca is having some problems: if you can see there are small brownish spots on the pleace where leaves come ...
user avatar
1 vote
0 answers
10 views

Monstera deliciousa brown residue on STEMS?

I have a fairly mature monstera deliciousa, that has been thriving and putting out new growth. I moved it into my bathroom for the winter. It’s now spring so I brought it outside and noticed this ...
user avatar
1 vote
0 answers
18 views

Chilli pepper seeds with dark cores: viability?

I have a ripe crop of serrano chilli peppers (Capsicum annuum). I'm planning to save some seeds for a future crop, and have done some research on what I need to do to dry and store them properly for ...
user avatar
1 vote
0 answers
20 views

What is causing this on my pepper plant?

Can someone help me identify what is happening to my poor peppers?
user avatar
  • 171
0 votes
0 answers
66 views

What this peony is suffering from?

Does anyone know what this peony is suffering from? The leaves aren't wilted, they are rigid and rubbery and have twisted themselves into tight, deformed shapes. The neighbouring peonies appear ...
user avatar
  • 133
0 votes
0 answers
25 views

Anthurium Regale brown spots

Brown spots spotted, surrounded by yellow areas. Initially thought it is due to over exposure to sun so I moved it to a more sheltered area. I notice that the browning is from within the leaf area so ...
user avatar
2 votes
0 answers
23 views

What is wrong with my cherry tree?

This tree is about 8 years old but only gives a few cherries a year that's not even tasty. It has a lot of sap coming out of the joints. I cut one out and splited it. I notice a brown line going down ...
user avatar
  • 173
1 vote
1 answer
19 views

Cayenne-type chili plants: yellow spots on leaves and 'spider web' on stems

It has been a while my chili plants show these symptoms. It seems relatively under control as they are not dying or dropping many leaves, but I'd still like to fix the issue if possible. Symptoms are: ...
user avatar
1 vote
0 answers
13 views

Pachyphytum compactum small brown spots on leaves and large pale brown spot on stem

I've recently noticed that my pachyphytum compactum started to develop small brown spots on leaves and large pale brown spot on the stem has appeared. It is very possibly that the succulent was ...
user avatar
  • 111
1 vote
0 answers
16 views

What to do about areca palm stems and leaves to get healthy again

As you can see in the photo, the stems do not seem healthy. There's also another problem which causes the leaves to turn brown and curly. It is next to the window with direct sunlight, I water it once ...
user avatar
  • 41
1 vote
0 answers
44 views

Bush Leaves Withering Away

Can somebody identify what is going on what is going on with my bushes here? Is it some disease? Fungi? Virus? The weather in the area has not been punishingly hot though and this is the first time it ...
user avatar
1 vote
0 answers
34 views

My avocado leaves are dying and I don’t know what’s wrong!

I started this avocado almost two years ago. I live in central Wisconsin and this plant is strictly indoors, sometimes if we have a warm gentle rain in summer it will go out. It currently sits in a ...
user avatar
1 vote
1 answer
132 views

Help identifying the pest/disease on my Schismatoglottis

I've attached a pic of the leaf of a Schismatoglottis I got recently. It's otherwise happy, healthy and flourishing but a few weeks after new leaves emerge they are covered in a slightly brownish ...
user avatar
0 votes
0 answers
48 views

Wilting and stunted growth of vegetables in NFT Hydroponics System

me and my friends are starting a small scale hydrponics farm based in jakarta, Indonesia. Recently we have experienced problem in our system, mainly wilting, stunted growth and yellowing leaves. The ...
user avatar
  • 1
1 vote
1 answer
58 views

What’s wrong with this jasmine?

I planted a jasmine (polyanthum I think) in our backyard last spring. It is positioned in a corner where it gets 2-3 hours of sun on a sunny summer day, but this being the Netherlands, that remains ...
user avatar
1 vote
1 answer
45 views

Why is the color draining out of this pin-stripe calathea leaf?

As mentioned in the title. The color at the edges of this leaf is much lighter than that of the center of the leaf. It almost looks like the color is draining out of the plant, or receding away from ...
user avatar
1 vote
0 answers
19 views

Why are the edges of my lemon verbana plant turning brown?

My lemon verbana often has leaves that are dry around the edges. It doesn't happen to all leaves, but it happens too often for my liking. It's been getting plenty of water, not a whole lot of sun (it'...
user avatar
  • 177
1 vote
0 answers
12 views

Parlour Palm Browning Leaves

I have had this parlor palm for several years, and it has been in this pot for at least 3 years. I fertilize occasionally every 1-2 months. It usually loses a lower leaf every now and then, which is ...
user avatar
1 vote
0 answers
19 views

White covering on leaves of tulsi (holy basil) in winters

Full gallery Facing the same problem in 3 of my 4 tulsi plants Looks like a fungal infection to me, please advice. Happening in winters. It appears to have spread to 2 plants from one. Other non-tulsi ...
user avatar
  • 111
1 vote
1 answer
31 views

What causes boxwood hedging to lose its leaves in the UK's winter months?

Boxwood is supposed to be an 'ever-green', yet in the UK it's becoming increasingly noticeable over the past few years how they shed their leaves, especially on the top surface, over the winter months ...
user avatar
3 votes
1 answer
29 views

Should I treat soil after slime flux?

I inherited a tree that suffered from slime flux (bacterial wetwood). It had sores on the trunk that oozed liquid and foam, and the run-off created a smelly puddle at the base of the tree. The stink ...
user avatar
1 vote
1 answer
53 views

What's wrong with my citrus?

First two are a lime, second two are a tangerine. Both of these have done well in previous years. The lime is especially bad it does not seem able to add new leaves, and the existing leaves have ...
user avatar
5 votes
1 answer
62 views

Aloe vera plant has rot deep in the leaf, and is looking wilted

I've had this plant for several years. Last summer I replanted it. It seems to have significantly wilted over the past few months. The leaves used to reach for the sky. A healthy leaf had fallen out ...
user avatar
4 votes
1 answer
70 views

How to treat black stem-tips and leaf-veins in Mango?

The plant in question is a Mallika grafted onto Gomera. It is planted in a fabric pot with general purpose potting soil and resides outdoors in a sunny spot while being protected from the rain. ...
user avatar
  • 63
3 votes
1 answer
59 views

Flamingo flower (Anthurium) dying: three years on

After a few months of neglecting my plants (only watering and not checking for health problems) I noticed the anthurium is not doing too well. The youngest leaves are withering back, and there aren't ...
user avatar
1 vote
1 answer
41 views

Bring wilting plant back to life

I don't know what kind of plant this is. A few months ago it started to wilt. If I watered it it seemed to get worse, so I cut way back on watering. The past two weeks I didn't water at all, then I ...
user avatar
  • 247

1
2 3 4 5
15