Questions tagged [diseases]

For questions related to plant diseases.

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0answers
55 views

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
26 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
26 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
502 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 ...
0
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1answer
15 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
21 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. ...
1
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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
32 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 ...
3
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0answers
31 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
34 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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0answers
28 views

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
31 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
39 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
21 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
33 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 ...
0
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1answer
32 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
25 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 ...
3
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0answers
13 views

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
58 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
25 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
50 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
41 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?
2
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2answers
62 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
60 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
33 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
33 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. ...
2
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3answers
104 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
43 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
59 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, ...
2
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1answer
52 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 ...
2
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1answer
40 views

Fairy castle cactus

My cactus has been suffering for 3 days, and now it look very sick. Could someone tell me the cause for which it looks like this and how I take care of him? Thank you very much!
2
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1answer
30 views

I have a strange growth on my cacti, around a flower

I got this cacti in the spring, I believe it to be a pin cushion cacti. Its bloomed three times since then, but just this last time a strange growth started to envelop one of the shriveling flowers. ...
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1answer
19 views

Solanum mammosum withering

I have two Solanum mammosum (nipplefruit) plants next to each other, and the one on the right is starting to wither since a week. The other one is not, what's going on here? The plants are from seeds,...
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0answers
11 views

Curled pink leaves

Desert Rose My leaves at the bottom have curled and turned pink. They are soft and pliable, no yellow or brown on plant. It is also flowering.
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1answer
22 views

Curled leaves on Jojo plum and something rot like in fruit

We have planted Jojo plum tree couple weeks ago. Some of tts leaves are curled and there is also something rot like in the fruit. I have not found any aphids in leaves. We have mostly sandy soil and ...
2
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1answer
53 views

My friend’s pepper plant has some odd leaf lesions

It looks like the leaves are being distorted by whatever these lesions are. Any ideas? Viral disease?
2
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0answers
29 views

Why is my passion fruit's leaves are yellow? Is it dying?

I've bought a plant of passion fruit. Recently I've changed the ground of it. Several days ago the leaves began to be yellow and curled up. The photos are below. Could you please give an advise how ...
2
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5answers
88 views

Is this soil any good?

Yesterday I was looking at a plant in pretty bad shape that I had bought a few months ago. The plant was indoors and the ceramic pot didn't have any holes at the bottom. When I start looking at the ...
3
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1answer
44 views

What is a white spot with a black dot on my peppermint?

These spots began to appear on the leaves of my peppermint, what could it be? The other side of the leaves looks like this:
3
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1answer
223 views

Chrysanthemum flowers and buds turning brown and dying, leaves wilting and getting brown spots

I bought these mums less than a month ago and planted them in Miracle Grow Potting Soil. Kept them in sun for 3-4 hours and in shade for the rest. They were left in sun for a couple of days at around ...
1
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1answer
118 views

peperomia polybotrya (raindrop) rust / copper spots on leaves?

Our Peperomia Polybotrya has developed some rust/copper coloured spots and I can't figure out what they are. I've googled intensively over the past few weeks, but I'm coming up empty, so I figured I'd ...
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1answer
16 views

thimbleberry leaf browning

I have a young thimbleberry that I planted this past spring. It has been growing well and seemed to be getting established. Now I am seeing some leaf browning. We are in Denver and it has been hot and ...
3
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2answers
117 views

What is causing large white spots on my sweet basil seedling's leaves, and can the plant be saved?

Several weeks ago, I put soil and sweet basil seeds into part of a plastic water bottle that I cut. I put one seed in each of the water bottles, and made a hole at the bottom of the bottles to allow ...
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0answers
19 views

How to control fungal infection on Moringa

7 week old moringa grown from seed started exhibiting white spots and yellowing on leaves. The bottom ones died and dropped off, although new growth continues. Reading that it could be a nutrient ...
2
votes
1answer
121 views

Brown flecks on Monstera Deliciosa

I just received a Monstera Deliciosa in the post today and noticed what look like brown flecks all over the leaves. Anybody know what they are? If it's rust, any advice on how I can treat it? It ...
2
votes
1answer
68 views

Having Various Issues With Multiple Tomato Plants

I'm a beginner backyard gardener and I have been growing vegetables in hydroponic containers for a few years. This is the first time I tried to grow vegetables on the soil (22 pots total) and I'm ...