Questions tagged [diseases]
For questions related to plant diseases.
802
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What is this leaf disease on the Janet Blair?
I planted a Janet Blair (type of Azalea) last year and since that time it has not been doing well. New leaves are coming out but soon half the leaves have some discoloration. I don’t know what is it. ...
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What is eating my garden?
I’ve got a couple plants in my garden that have been decimated by… Something. I’m hoping someone can help me identify what that something might be.In doing a very limited amount of research, I ...
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Hydroponic nutrient solution filtration
I am looking to build a small-scale hydroponic farm; lettuce/tomatoes/etc, and am now looking into a filtration system for my re-circulating reservoir. I have previously run into pathogen issues ...
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Cherry disease identification
Cherry Tree is Sick 😞
I have a cherry tree that was planted 3 years ago.
It is a hybrid of three different species (one branch is native, the two other are not).
The tree looked healthy and did grow ...
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Peach disease identification
Peach Tree is Sick 😞
My peach tree is suffering from curling leaves.
The issue started last year and persists.
This is a young tree and it only produced 3 fruits last season.
I suspected it's a ...
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Birch Tree; Section of branches have no Leaves
I have a group of 3 birch tree's in my backyard, Jacksonville, FL. Last year I noticed that there was a center section, on the entire group, that did not have leaves on the branches. I have River ...
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Gum excreting from mango fruits
I just found that some gum is excreting from the fruits of mango. Here are the pics. Could someone tell me what it is? How to cure it?
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Habanero leaves browning and dropping
I have had the pepper in question for over a year now, it was growing really well, flowered and started ripening fruits, however now it seems to be dropping all of the leaves. They first turn soft and ...
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How do I fix my palm tree?
My palm tree has some holes and odd texture at the bottom. Someone told me it could be rot or a disease. I am looking for some answers as to how to fix it. It could be drainage which I am fixing. Is ...
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Circular dead spots on Boxwood shrub - identification and treatment
I am trying to figure out why my shrubs are showing dead spots and, in some cases, complete sides of the shrubs are dying off.
Can anyone help me:
Identify what this shrub is
Why they are all showing ...
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white foam on mulberry, ants love it
What is this white foamy thing I see sometimes on leaves and sometimes on small branches on my mulberry tree. (Don't forget to read updates below pictures.)
Update:
I gather 3 of these foams, and ...
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White web or fungus like sutff under sugar maple tree bark - peeling bark
I started to notice some white web or soft fungus type stuff around crevasses of my maple tree's trunk bark. I didnt make much of it until I clipped off some of the bark, there was more of it, and ...
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What are these strange black lumps on basil plant?
I've recently noticed these lumps on the stems of my basil plant
The fall off fairly easily but I'm not sure what they are and there's not much online that I can find.
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What is wrong with my brandywine tomato?
Just when I told my husband I had a great year so far starting tomatoes indoors, I noticed my young brandywine tomato has some sort of disease and it's causing the leaves to have some brown spots and ...
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What's happening to this plant?
It is on a balcony sun exposed. This brown dots started to appear, any Idea on what it can be?
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Why are the leaves of my Japanese Sweet Potato gradually turning yellow?
The leaves of my Japanese Sweet Potato plant (satsumaimo, サツマイモ) are gradually turning yellow, from the bottom to the top of the plant and from outside in on each leaf. The first picture shows the ...
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What are these gray spots on my locoto pepper plant?
Over the past few days I've noticed these grey streaks appearing on some of the leaves of my pepper plant and was wondering if anyone had any insight.
As of now, it seems to be mostly leaves near the ...
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What are these scars on my fruit trees?
I planted a few fruit tree saplings, apples, pears, peaches, apricots, plums, cherries. Within one year of planting, all of them, and i mean all of them started having these cuts or scars on them, ...
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What causes a guava tree to have brown lines on leafes anddoesn't give flowers/fruits?
I'm helping a friend with a guava(strawberry guava) tree problem. In addition to what you see on the leafes, it doesn't give any fruit/flowers.
it's just finished the humid season. it grows in a pot ...
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avocado leaf getting black spots near vein
~1.5 year old indoor avocado plant recently started getting these black spots near the central vein. It's only on the top face of the leaf and only one leaf is affected.
There seems to be no ...
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Banana plant has its youngest leaf dry while other ones seem fine
I have a banana plant for a couple of months already. It has grown a lot during this time so it seems to be a healthy plant but recently the youngest leaf has dried.
Here are two pictures of how it ...
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Oak Tree Disease
Several live oak trees in my neighborhood over the past years have become covered in these protruding black spots on the bark. When the trees have it for a long time, they look like the tree I posted ...
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What is causing tiny new growth to die?
I have a young Jalapeno and its new growth is dead looking. It has tiny leaves and its flowers are dead and brown. I looked using a jewelry loupe and could not see any pests.
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Live oak brown spots on leaves in south Florida
I am hoping someone might be able to identify the disease shown on these live oak tree leaves. Hoping it’s not oak wilt. If there’s a recommendation on treatment that would be great. Thanks!
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Is this slime mold and if so, what should we do about it?
This started popping up on the surface of the soil in our garden...in quite a few spots. Very mucus-like, quite firm. Very weird and disturbing. Have never seen it before. It is even in a large pot. ...
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My avocado pit split in two
My avocado plant has been growing really well and it's healthy. One problem is that the pit it sprouted from has started getting kinda black and I touched it a bit too hard and it fell off. Also I ...
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Ficus bonsai dropping leaves and white powder
So I bought a ficus microcarpa bonsai from the store 2 month ago and I noticed a problem since then, some leaves turn partially brown and fall while it's still wet not dry, some new growth also falls ...
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Dragon tree disease - need help identifying
Last week my dragon tree after 3 years of non-issues started showing some signs of damage, can someone help me identify what it might be?
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Mango plant is dying
My mango plant (Mallika variety) recently had what seemed like a mealybug infestation. I applied EndAll pesticide and 70% isopropyl alcohol, and now the bugs mostly seem to be gone.
However, I notice ...
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What are the dark, dry spots spreading over my rubber tree (ficus elastica)?
My rubber tree has started to exhibit these weird spots under the leaves, it started maybe three months ago, but it took me a while to notice them really. They seem to be spreading from leaf to leaf ...
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Yellow leaves with Dried spots on chili leaves
I have noticed this on my chili leaves (refer to photo). At first I thought it is happening on bottom leaves but I spotted some top leaves as well. I have noticed that the infection is spreading. The ...
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Dragon Fruit developing translucent areas which then turn tan/white
I have two dragon fruit plants which were started from healthy cuttings. The new growth segments have developed an odd thing which I can't figure out when reading up on problems and diseases. Along ...
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Mysterious anthurium disease…
My friend has just acquired this beautiful Anthurium wendlingeri for me!
Sadly it had some scales and mealy bugs, which I’ve already washed off… but there is also this very strange damage:
What kind ...
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What’s killing my plants?
I am desperate for some good advice please. Three of my favorite houseplants are suffering terribly. My Bunny Ears cactus, Hens & Chicks cactus, as well as my snake plant are all affected.
I’m in ...
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What is this brown spot in my cherry leaf?
I have a cherry fruit tree that I don't know the species name, but in my country it's called Japanese Cherry.
Some of my cherry's leaves have brown spots, it looks like a fungus but also looks like ...
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Rhododendron slowly dying of unknown disease
Hello!
I'm from Germany and my parents Rhododendron plant is apparently dying. My mom is trying to figure out why.
It's planted outside, fairly large bush, fairly sunny space. When it was first ...
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Lilac disease/fungus diagnosis
I have 5 Syringa meyeri cvs all with leaves curling upwards, in on themselves also. yellow with brown/black edges and spots on the leaves. Is this just drought stress or something more serious. If ...
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Plants that absorb carbon monooxide and other drainage gases
I have drainage pits around the house, sometimes the drainage smells comes from the pit but they are odourless gases such as carbon monoxide which can be harmful and there are other toxic gases such ...
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Deformed flowers in chili pepper plants
I recently noticed this on my outdoor chili pepper flowers, I find it difficult to describe so here are the images to start with:
As can be seen above, there is a green pod bulging out of the flower ...
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Diseased walnut?
I bought a house recently (Southern Indiana) and only just realized that there may be some walnut trees on the property. At least, something likes to drop these large seeds on my shed and make a very ...
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Bell pepper plant - brown (burnt/disease) new leaf growth: possible causes and remedies?
Complete beginner here, started learning how to grow pepper plants (and other type of plants) from seeds this year, so bare with me.
I am growing some bell pepper plants that I started from seeds ...
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Is this apple canker?
I've inherited an apple tree growing in heavily polluted ground (tailings and spoil from copper/tin mining).
The tree is fruiting with nice sweet cooking fruit, but is absolutely covered in lichen and ...
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Could dead patches in my lawn be caused by blowing too many clippings into the same area?
I mow my lawn but I pay a company to fertilize and treat weeds. The company is telling me I have something called large patch and pythium. They’re telling me it’s going to cost $130 per treatment and ...
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What are these dark spots on my tomato leaves?
These dark spots have appeared on my tomatoes. I assume it's some sort of desease, but can't quite figure out which one.
Here are a few pictures:
And a few notes:
the colour of the spots is a bit ...
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What is wrong with this apple sapling?
I have an Opal apple sapling that I've been growing since she was a seed: only for the joy of watching a plant grow; not with any intent that she become fruit-bearing.
She's spent her whole life in ...
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Potato leaves curling and turning brown
This is our first year growing potatoes (no potatoes or cultivated nightshades have been grown in this soil for at least 2 years before). Central NY zone 4b/5a. The potato plants started out healthy, ...
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Why do my grapes burst open before ripening?
I have a grapevine on the southwest. It was put in by the previous owners so I don’t know the specific variety. I have not yet managed to harvest from this plant; we moved in a bit over a year ago and ...
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Does it make any sense to heat soil in an oven in effort to kill pathogens?
So this year, a lot of my inside potted plants got attacked by powdery mildew and other afflictions. All affected were previously given soil that I sifted from the composter that is on the porch of ...
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What are these black spots on my kullu apples
I got these black spots on my apples few days back after there were heavy rains for 5days . before Rains there were not presence of these spots
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What is the problem for this 6yo maple and does it need intervention?
Six years ago a 1"-DBH maple (believed to be a Norway maple cultivar) was planted at an institution to commemorate an event. This is in zone 5 in central NY, which has been experiencing moderate ...
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