Questions tagged [diseases]

For questions related to plant diseases.

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7 views

peace lily is dying

I have 2 peace lily and I keep them inside, water them once a week but one of them started to drop and dying, I moved it to a bigger pot and it was getting well but then drop and die again!
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What are these Mites/Aphids on Bamboo?

We live in Pune, India which has a dry climate. We see these aphids or mites on the leaves of our bamboo. The round cocoons are on the under side of the leaves. (Is cocoon the correct word?) The ...
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1answer
28 views

Getting rid of strange eggs in houseplant soil

Help! I have a peace lily which I bought three years ago for almost a nothing as it was almost dead. I nursed it back to health and was doing great, after about a year of having it in it’s nursery pot ...
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17 views

Weird spots on avocado plant

My avocado plant of 4 years is having some weird pink-ish/white spots on some of its leafs. What are these and are they harmful? Should I remove those leafs or is there something else I should do? ...
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1answer
30 views

Our Aspen are weep brown sap. A web site from Colorado said this condition is terminal for Aspen. Can you help?

Our Aspen are weeping a brown sap. A web site said the condition is terminal. A local weed and feed company said the condition can be treated with an antibiotic for pigs. Do you have information on ...
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Can someone help me diagnose what is wrong with my cactus and how do I treat it?

Does anyone know what is happening to my cactus. It was a beautiful specimen when I got it and was fine for a year or so, but then it gradually started with the browning and weird skin disease. It ...
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0answers
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What is causing my avocado tree rot on leaf

I’m a newbie to growing avocado tree. This guys been growing for afew months and has recently started getting light brown spots on one of its leafs. The other leafs look okay apart from one or two ...
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0answers
17 views

What is the cause of the blackening of leaves?

My plant leaf seems to have diseased. It's leaf seems blacken on edge and cut on middle. Even new leaf is getting this problem. Could anyone please help me? Thanks in advance.
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Black mold on top of soil

2 days after pulling hydroperoxide around the stem of a plant to possibly kill root rot dark black mole looking substance formed around the area where the powder peroxide was poured what is that
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22 views

Pomegranate bonsai looks ill (reddish brown leaves and leaf curl)

I live in coastal Virginia zone 7b and have had a small pomegranate bonsai for 6 years now. Unfortunately last spring it started to show signs of stress or nutritional deficiency. The leaves started ...
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1answer
31 views

What Disease is on my Mango Plant? Are there any remedies to cure it?

I'm growing a mango tree and discovered a few days ago some oily dots on the top of a lot of the leaves and on the back of those specific leaves were black patches scattered around. A few isolated ...
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1answer
25 views

Young Mango Tree Dying

Could anyone tell me how to save this tree? I am in planting zone 9b, so I know it is not the climate. When I had it in a pot outside and neglected to water it, the leaves turned brown too. I started ...
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1answer
30 views

Sunflower leaves wilting and yellowing

Good day! I would like to ask for some help to determine what I am doing wrong in growing my sunflower. The sunflower was started from seed about 3 weeks ago and now it has grown a few sets of true ...
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2answers
52 views

What are those white spots? Are they mould & harmful?

I have an indoor plant located at the windows of my kitchen. I water it every 2-3 days with rice water and the plant has been growing well. Recently I spotted some white spot at the soil of the ...
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1answer
34 views

Young mango tree leaves get blackish and fall off

I have planted a mango seed and it was growing fine until a few days ago I noticed that one of the leaves had started going blackish. When I touched it, it fell. Yesterday I noticed that another one ...
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1answer
152 views

Bark is falling off on our trees. Could it be Dutch elm disease?

We live in New York. Bark is falling off several of our trees. Could it be Dutch elm disease? It’s falling off in slivers.
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White coating on bottom side of pepper leaves

I just noticed this white coating on the bottom side of a few leaves of my pepper plant. I can not wipe it off. Is this some kind of fungal disease or some pest? Edit: I made some more images using a ...
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1answer
28 views

why are the leaves so smooth?

first time growing avocado indoors.why does it look like there are almost no veins in the leaves. I don’t have any idea where to start because everything else about the plant looks ok.
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2answers
31 views

Is this one of the incurable Canna Indica viruses?

More higher resolution images are here: http://imgur.com/gallery/sD2T1qN
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2answers
512 views

White growth on young walnut tree - is it an illness?

What is this white growth on this young walnut tree? Is it a disease or a harmless fungus? If I remove one, a visible hole is left in the tree. Other nearby trees do not have this so far (there ...
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1answer
20 views

White/brown patch on a young monstera leaf - what to do?

I was happy when I saw my monstera growing a new leaf, but recently I noticed a white/brown patch on it and I'm getting worried. What does the patch signify? How can I help the plant?
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1answer
23 views

Kumquat leaf diseases or some kind of stress

I've got a Fortunella Obovata tree's leaves turning brown so I'd like to know is this some kind of diseases which would require disposing the tree or something treatable due to nutrition deficiencies. ...
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1answer
55 views

What kind of disease is this, which is ruining my crop

I have grown castor in 5 acres, Castor is not traditionally grown in our area, but in the last two years my father has been growing this crop, because its price is high in the market. Last year's ...
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2answers
44 views

Kumquat fruit drop: Always the same result, no matter what

I got different responses, often conflicting ones: It could have been from excess water as well as lack of water. While June drop may be associated with heat, even fruits which formed later in the ...
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0answers
37 views

Avocado plant white resin/wax like substance on back of leaves. What could it be?

I planted an avocado plant from seed about 2,5 years ago. The plant seemed to grow well, but I moved it alot, due to unproper conditions (lighting, temperature). For the last year, though, it stayed ...
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1answer
35 views

Disease on Eggplant

My eggplant looks to be sick and its spreading to my other plants! I'm in Australia so its currently spring. Does anyone know what it is? and how should i treat it?
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What's wrong with my ponytail palm

my neighbor moved across the country and gave me this palm along with a few other plants and starts. I really know absolutely nothing about them the condition that They are in now are the condition ...
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1answer
60 views

What is happening to my Dieffenbachia, and what can I do about it?

BACKGROUND I brought 2 similar plants, of this same Dieffenbachia (see attached photo): Both were brought from the same nursery Both were brought at the same time Both were placed in new (never been ...
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2answers
63 views

Getting rid of mealybugs in geranium/citronella?

I have a small citronella plant that used to look very leafy and green. All of a sudden, the plant started turning brown, and the leaves were dying. So I looked at it today, and found some white ...
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1answer
27 views

Daphne Odora - Silvering leaves

Hi this Daphne odora is growing in a pot in well draining soil in a fairly well protected position, it's spring time. but it's leaves are silvering here are a couple of photo's: Does anyone have any ...
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1answer
35 views

Tomato Mosaic Virus

My tomato plants apparently had the tomato mosaic virus this year - and probably last year as well. This is according to my neighbor, who I asked because I've been asking everyone if they know what ...
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1answer
39 views

Can my chilli plant be saved?

I started observing some white patches on the soil and have been observing practically no growth on my plant. The leaves are also yellowing. I thought it could be root root so I thought of repotting. ...
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2answers
39 views

Can't bacteria enter the tree even after a proper prune cut?

I am now aware of the 3 cut method of pruning the tree to avoid damaging the bark. I am at the brink of loosing a tree because of bad pruning and not noticing that. Now this may sound a silly ...
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1answer
29 views

My over 23 year old Mango tree wilted and cracks on barks. Verticillium wilt or Dieback?

I have a quite old mango tree in my garden. It is been there before my birth and I'm 23 now. We cut and prune the tree (not all of it) whenever it gets too big never had issue but only this time ...
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How to get rid of the White fly

I noticed I got once again the white fly in my herbs and vegetables. I tried to get rid of it by planting Basil close to them, and it worked for some time but now is back again. I heard trying vinegar ...
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1answer
63 views

What are these white things on new leaves?

I have roselle planted. But I see these on the leaves. What are these? Edit: Added closeups
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1answer
26 views

Are Echeverias better off in a garden than a pot?

I followed all the possible advices: 1 - Good drainage holes 2 - Fast-draining potting mix, be it 50/50 coco-perlite, added coarse tuffa or river sand, or just using pure Perlite 3 - Let it dry for ...
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2answers
52 views

Transparent/white goo on the back of lemon tree leafs

The tree has been outside during the summer, since a few weeks back I took it in. A few days back I noticed these strange things attached on the back of 20% of the leafs. What is it?
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3answers
48 views

Dealing with fungus and molds

I'm interested in ways to deal (remove) fungus from spaces used to germinate seeds. I noticed that hydrogen peroxide, isopropylacohol and baking soda. Are these just for fungus or mold too?
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2answers
75 views

Sudden death of arborvitae’s

I planted about 10 arborvitae‘s probably five or six years ago. Some of them are nearly 8 feet tall. In the last month and a half, three of them appear to have died. Why so suddenly?
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1answer
27 views

What is going on with my cactus. Someone said miners but idk

my night bLooming cactus has its leaves eaten like this. I don’t see a bug on it. Ive Sprayed it with water etc and researched online but just two people answered and they said miners. I don’t know if ...
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2answers
66 views

The growth on my cacti has changed, and it wierd

I asked a question about the growth on my cacti earlier in the summer, however it's just acting weird. I initially thought it was a cacti fruit because it originated from a flower I tried to cross ...
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1answer
50 views

Problems with monkey puzzle tree

I’m Anna. I live in England . I have big monkey puzzle tree in my garden and it looks like it’s dying. We moved to the house a year ago . Last year we had very dry summer and since then we noticed ...
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0answers
34 views

Diseases Wreaking Havoc With Peppers Should I Discard Them?

This post has multiple questions inside that I really need help with identifying what's wrong with the plants and should I remove them, if so, which ones. I'm also curious if any of those issues ...
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0answers
34 views

Purplish discoloration on the leaves of solanum torvum

Recently my Solanum torvum started developing purplish discoloration on the leaves It is visible primarily on the top surface of the leaf, and lower, older leaves are more affected than the top ones. ...
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3answers
173 views

Holes on my succulent leaves

Hi, my succulents have recently been getting holes in them and I have no idea what it is. Please help!!
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0answers
51 views

What wrong with my cactus

Ive had this cactus which i think is a Pachycereus Schotti/Monstrosus since years and its been growing fabulous. Ive just recently noticed it acquired some brown scales (non Insect) and looks like ...
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2answers
62 views

Losing money fast! How do I stop the leaves dying?

These Crassula ovata plants were given to my other a few weeks ago. I didn't pay any attention to them until today. I think they were all green when she got them. They were left outside in the frost, ...
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1answer
53 views

Crinkled new leaves on healthy flowering ipomoea/ Morning Glory. virus?

My perfectly healthy Ipomoea tree now has wrinkled new leaves coming up? Could this be a deficiency or an infestation? Thanks in advance [![New crinkled leaves][4]][4] [![New growth.][3]][3] [3]: ...
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2answers
50 views

Fine white fuzzy layer all over Ipomoea. What can it be?

I have noticed a fading on my Ipomoea leaves and a fine white fuzz around the leaves too. Can anyone help me identify the problem? They grow on may balcony, Have plenty of sunshine and have not been ...

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