Questions tagged [diseases]

For questions related to plant diseases.

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1
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0answers
25 views

What are these white things on new leaves?

I have roselle planted. But I see these on the leaves. What are these?
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1answer
24 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
40 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
32 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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1answer
45 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
23 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
52 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
30 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
32 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 ...
2
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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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1answer
41 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
40 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
56 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
49 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
28 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
27 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
10 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
17 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
52 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
25 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
84 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:
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1answer
93 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 ...
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0answers
51 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
67 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
15 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
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1answer
52 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
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1answer
64 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 ...
2
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3answers
68 views

Why does this chili pod have spikes?

I got some hot pepper seeds off the internet earlier this year and managed to get a couple of plants to fruit. The two plant that I've kept were supposed to be scotch bonnets and lemon drop peppers. ...
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0answers
41 views
+50

What is wrong with my Hydrangeas

My hydrangeas were looking beautiful until a few weeks ago. Then I started noticing that some of their leaves had these gray powdery looing spots on them, their blooms started having brown spots and ...
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1answer
29 views

what are these brown spots on my potato plant?

I have noticed brown spots on my potato plant but cannot figure out what it could be. Do you might have an idea?
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0answers
23 views

Indoor plumeria disease … help!

It's in a pot, was doing well until recently. it started with the white spots (embedded in the leaf, cannot be scratched of or not seen on the other side). Then the brown spots show up, leaf turns ...
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0answers
18 views

This asian squash leaves got black edges

This is a type of Asian squash (very common in Vietnam): I am trying to grow in Pacific Northwest in the summer but I got unlucky People have done this before so this plant definitely can survive ...
2
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1answer
26 views

Gardening. Potted cucumber plants

My potted cucumber plants appear to have mosaic virus. How is an insect barrier created?
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0answers
7 views

Leaves turning brown?

This is one of two indoor planta I bought a Walmart. It used to be nice, but then I noticed that the leaves are turning brown. It’s not overwatering because I bought two of them and the other doesn’t ...
2
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2answers
43 views

What to do about a flowering currant covered with white disease or fungus?

Does anyone know what this is and how to deal with it please (I am in the UK)? Are there any precautions I need to take if I just remove the whole shrub? It is a flowering currant. Thanks
2
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1answer
115 views

yellow and dying leaves of grape vine

Just wondering the possible reason why the grape vine leaves are dying. The fresh leaves looks fine, though a bit yellowish. Here is some pictures. Any suggestions to cure the vine? Thanks.
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0answers
23 views

HELP for diagnosis: Young pepper leaves are curling inward with no pests evident

I’ve been growing this plant hydroponically for about 1 month now and the new growth and some older leaves are curling inward. I suspected that it might be due to insects but there seems to be no ...
2
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2answers
43 views

Colocasia esculenta leaves drying

I have a few colocasia tubers planted since 2 months in a cocopeat perlite vermiculite compost 2:1:1:2 potting mix. Its leaves dry up when they reach a medium size after having a crispy bit of edge ...
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0answers
19 views

Fungus on mango leaves

Help! My seed-potted mango plant is struggling with white fungus-like dots on the youngest leaves. Plant is about 7-8 mo, on balcony (open air), fertilizer never used. Last few weeks were very hot. ...
3
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1answer
29 views

What’s wrong with my Marigolds?

Not sure what’s wrong with my plants. They get water, fertilizer and have been sprayed with Safer’s 3-in-1 as well. Any ideas?
4
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1answer
121 views

Why are my tomato plants wilting?

Leaves are yellowing then wilting up. BELOW: If you zoom in on the leaf you can see white organisms along the midrib and veins. Indoor grown under LED lighting with air conditioning. These ...
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0answers
20 views

Problems with new cherry trees (UK)

About three weeks ago I had a pair of sweet cherry trees planted -- they are 3-4 years old, about a meter high, and were planted where I'd previously had a seriously overgrown cotoneaster and a ...
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0answers
198 views

Leaf curling in curry leaf plant and white patches on stems?

I've looked at the reason for leaf curl and another question on curry leaves, but this is slightly different. Since it's been raining quite a bit and the plant is in this type of a grow bag, I'm ...
3
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0answers
47 views

No leaves on tree tops. What’s wrong?

I’ve got two trees that didn’t get leaves on their tops. Should I be concerned? One is a twisted baby locust and the other is a scarlet oak tree. It did get really warm here and then freeze in the ...
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0answers
18 views

Disease on Thuja Occidentalis

In our garden there are two northern white-cedars (thuja occidentalis) that have gotten a strange light-greenish area on the base of their stem (see the image enclosed). The infected species are in ...
0
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1answer
48 views

What is this white web-like, mold-like thing on the plant

what is this web-like, mold-like thing on the base of the watch chain succulent plant? I searched in google for plant "molds" --> I saw powdery mildew. I think this is not that. It's more similar to ...