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For questions related to plant diseases.

3
votes
1answer
43 views

What’s happening to my grapes?

Just in the past week, just as my grapes are ripening, this powder is showing up on some of them, and some of the green stocks are showing some brown. What’s wrong and how do I fix it? The vine is ...
2
votes
1answer
27 views

What is this disease on my carrots?

I have just discovered that some of my carrots have this very dense presence of insects. Are they aphids? I have learned recently that ants love to grow aphids and I could notice some ants around ...
7
votes
2answers
2k views

Why do my Cherry tomatoes split as they ripen? [duplicate]

It doesn't matter what I do, my Cherry tomatoes always seem to have many of them crack when/as they ripen. I have tried everything - more sun, less sun, more water, less water, different varieties etc....
2
votes
1answer
37 views

Who is bugging this Deutzia Gracilis?

The depicted Deutzia Gracilis has apparently begun suffering from some kind of invasion. Who is bugging it (probably aphids) and how can this be fought off (preferably without "strong" pesticides)? ...
3
votes
0answers
22 views

Hibiscus buds turning brown before opening

My Hibiscus is loaded with buds, however they turn dark brown and never open. The leaves did have some signs of disease but we have sprayed the plant and it is looking better, however the buds are ...
1
vote
1answer
26 views

Chilli leaf curl downwards

I have few chilli plants in a medium sized pot. Last few days I could notice some of the leaves are curling downwards and there is no color change. I am unable to find other issues in the plant. I ...
3
votes
1answer
45 views

Agave is sweating

It looks as if my agave is "sweating" a crystalline substance. The droplets are approx. 2 mm in diameter and twice as long. Is this as it should be (also the surrounding yellowish patch in the ...
3
votes
2answers
47 views

I was wondering if my Chocolate Mint plant had some type of disease?

So, I've had this Chocolate Mint plant for about a month now and some/most of the stems are brown. Some leaves on this plant also have brown spots on them, but not all are affected! So my question is: ...
2
votes
1answer
40 views

Leaves are dying slowly on Raspberry plant-what on earth is wrong?

I am in desperate need of some help. I have been trying to figure out what is killing my Raspberry plants and have come up with nothing so far. Let me give some background information that may be of ...
4
votes
1answer
45 views

What are the little white eggs on rose leaf?

Somes weeks ago rose food /w bad things killer was sprinkled on the ground. The three roses were, just a little over a week ago, hacked back for better access to attempt to clear myrtle that had ...
3
votes
1answer
45 views

Is this the cucumber mosaic virus?

We tried growing cucumbers in our backyard near San Francisco, California for the first time this year and have had all sorts of problems. We had to remove three cucumber plants because they seemed to ...
4
votes
1answer
280 views

Why has 20% of my pumpkin plant suddenly died and how can I save it?

So I had a thriving Pumpkin plant. For about a couple of weeks the big leaves in the middle of the plant (so the oldest leaves) started to yellow and get crisply on the edges. We've had 90 to 100 ...
1
vote
1answer
23 views

Dwarf Umbrella Plant Drooping

My umbrella plant suddenly started drooping. The leaves at the bottom drooped first and then the ones at the top. Now the whole plant has drooped. Is there any way I can bring back the plant? What has ...
1
vote
1answer
35 views

What is this disease with sticky transparent liquid and brown spots on leaves?

here is a picture of the plant, a shefflera. It has some very sticky transparent liquid on many leaves, and also brown spots. The spots themselves are kind of "dry" and mostly located at the leaves ...
0
votes
1answer
17 views

What's causing dry crispy leaves on Vaccinium Membranaceum?

I'm in the Willamette Valley in Oregon, USA, (USDA zone 8b) and I have a Vaccinium Ovatum, Vaccinium Parvifolium, and a Vaccinium Membranaceum in a section of my garden. They're shaded up until noon ...
0
votes
1answer
25 views

Basil leaves are scarred and wrinkled

My indoor basil plant has developed some scarring and has some pretty deformed leaves. Could it be due to the caterpillar that chewed up quite a few leaves a few weeks ago, or is something else the ...
1
vote
0answers
19 views

What disease does my hemlocks have

I am not entirely sure they are hemlock trees. They were not doing so hot when I moved in 2015, but it's getting worse over the past few years. They are located near Albany, New York State, US. ...
0
votes
1answer
22 views

Foliage Plant identification and help with yellow spotting on leaves

Can you please help me with two (related) things? Firstly, can anyone tell me what the non-ivy plant in the picture is? I got it at a local supermarket for Christmas a couple of years back, and it ...
4
votes
1answer
67 views

Why do I have brown “jelly” and rotten smell inside my healthy looking tomatoes?

I have about 30 tomato plants of several varieties, all hybrid except for one heirloom. Every single tomato plant is having the same issue but my peppers, eggplant, green beans, and cucumbers are fine ...
3
votes
1answer
81 views

What's wrong with my plants

I've recently bought Cestrum nocturnum from local nursery and transplant it in pot with 40% sand soil, 40% organic compost and 20% coco peat. But I don't know why its leafs are falling continuously. ...
2
votes
1answer
46 views

Kiwi Actinidia arguta Issai black spots / patches on younger leaves

I bought 2 mini kiwi plants (Actinidia arguta Issai) online. It was delivered from Netherlands in case that matters. They are growing well except for black spots that seem to be spreading a little ...
3
votes
1answer
20 views

Disease on walnut - light green convex lumps on leaves

There are convex light green lumps on the leaves of my family's black Walnut - only in one region of the tree. The reverse side of affected areas has like a fuzzy yellow crust. What is this and is it ...
5
votes
2answers
63 views

Is a virus, or something else, causing my tomato leaves to become shriveled, yellow and wrinkled?

Information: two tomato plants - one is some kind of a plum tomato, and the other is a black tomato. the plum tomato's seed was taken from a freshly cut plum tomato (which was bought at the ...
2
votes
1answer
47 views

yellowing leaves and black leaf parts on alocasia

info alocasia plant bought from a nursery placed in a well-lit corner of the room, without direct sunlight plant is not over-watered, only watered when soil dries got it for about 3 weeks now issues ...
1
vote
0answers
49 views

What pest is affecting my tomato plants?

This is the fourth year I've been growing tomatoes in my garden, but this is the first time I see this pest affecting my plants. The plants have black, brown spots on yellowing leaves. On some of the ...
2
votes
0answers
23 views

Is this green scale?

I have a small orange tree, and for the last few days the leaves are getting sticky and some green bumps and small white dots appeared in the trunk and leaves. From my google search it looks like ...
3
votes
1answer
72 views

What’s wrong with my Aloe Vera plant?

I have absolutely no idea what’s wrong with my aloe. It started getting these patches of light brown spots a few weeks ago and appears to have spread. Any advice on what it is/how to treat it?
0
votes
0answers
20 views

What, if anything, is wrong with our Ulmus Camperdownii

In October 2016, we planted an ulmus camperdownii in the Gulf Islands of British Columbia, Canada. This summer 2018, it has brown and white patches on its leaves. We're concerned it has a disease. ...
4
votes
0answers
40 views

My lemon tree has not grown for the last few years and has remained stick thin. Can you help me revitalise it?

Unfortunately this lemon tree hasn't grown for the last 3 years when it was planted. Its situated on the north side of the house and should have plenty of sun although it's winter now in Melbourne. ...
5
votes
1answer
44 views

How to treat a magnolia with white fuzz on its leaves?

I can’t find photos with similar problem in the internet. Therefore, I don’t know how to treat this. Please help me, the tree looks worse each day.
3
votes
1answer
31 views

Fig tree leaf color lighter than usual

Why does the fig tree (about 10x10x10feet in size) leaves have light green spots like this?
5
votes
1answer
439 views

Need identification on this growth on cherry & possibly plum trees and possible remedies

It's what I like to call The Alien Fungus, the plants don't seem to be happy about it, but they do give fruit - it grows in continental Croatia, Europe, typical yearly temperature range -20 to 40 ...
1
vote
1answer
22 views

Spots on Magnolia

My Kay Parris Magnolia has some odd white spots on it. I’m wondering what these could be and how to deal with them?
1
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0answers
17 views

treating potato plant disease with ridomil

Potatoes in our garden got attacked by a disease. Take a look: Presumably, this is late blight. The recommended practice is to spray potatoes with ridomil fungicide. I am very skeptical about using ...
3
votes
1answer
47 views

Problems with Camellia sinensis

All my Camellia sinensis appear with the leaves like the foto shows. All the other Camellias ( japonica and sasanqua are Ok)- Please, someone knows what it is?
2
votes
0answers
27 views

why do the leaves of my papaya tree twist and dry

I have papaya and mango saplings. But there are such problems on their leaves. Could you please help me ??I wanted to send a photo but I could not upload it.
3
votes
0answers
42 views

Can someone identify Desert Rose Leaf problem?

I bought this Desert Rose from a big box store on clearance about a month ago. The leaves had this trailing/patchy lighter discoloration on the leaves when I purchased. Thought I could re-pot it and ...
4
votes
0answers
40 views

What is this foliar/fruit disease on our pear trees?

This year both of our pear trees (especially our dwarf Bartlett) have a new foliar disease that I've never seen before. It looks a lot like edema with the bumps, but with a lot more discoloration and ...
1
vote
1answer
45 views

What are the diseases that affect Angelica?

I've never grown angelica, or seen anyone else growing it. What diseases should I look for when growing it? How do I cure the disease to make the plant healthy again?
1
vote
0answers
32 views

White spots on Ocimum tenuiflorum leaves (chlorosis?)

I'm growing Ocimum tenuiflorum (O. sanctum) from seed. Since 1 week ago, some seedlings have white spots on the leaves. I didn't see any insect or so and the spots look like a “depigmentation” of the ...
2
votes
0answers
26 views

Thin Pachysandra = Volutella Blight? How can I fix these areas?

I live in zone 6a (Ohio) and just purchased my first house April 2017. We have had problems with the Pachysandra in the landscaping around the home. It seems to be thinned out and weak in some of ...
1
vote
0answers
34 views

Help to ID tree and determine if it may be diseased

would like to identify this tree and determine whether it is diseased or not. Thanks for any feedback.
2
votes
0answers
16 views

can you use blight spray on all edible and ornamental trees, shrubs and bushes

At first, it was just my pear trees, then it seems everything has it. It looks like brown spots that turn the leaves yellow. But there are holes and half eaten leaves also. Some leaves such as my ...
3
votes
1answer
57 views

How to save a tree that is falling apart?

I have an issue with my trees. They have been gradually shedding bark and now it's to the point where a couple limbs have fallen off this spring. I've attached the pictures and hope someone will have ...
2
votes
3answers
51 views

My heuchera has acne!

Can anyone tell me what is going on here? I am not familiary with this plant disease but it sort of looks like the plan has acne. The plant is a "Berry Smoothie" variety of heuchera, so the leaves ...
4
votes
1answer
28 views

Spots on climbing rose canes

Last season my climbing rose had a very strong fungal infection, black-spot or something similar. It affected most of the leafs. This spring I have noticed black rings on most of the canes (see ...
4
votes
1answer
70 views

Flamingo flower (Anthurium) leaf discoloration

In February I received this flamingo flower, and the underside of some leaves has v-shaped brown patches. Initially, I kept it under a high-intensity energy-saving light bulb, and was wondering if ...
3
votes
1answer
546 views

Kentia palm leaves turn brown

I have bought a 7 foot Kenia Palm about 6 weeks ago and keep it indoors in spot with indirect light. The palm gets 1/2 gallon of water once a week and I added half a tablespoon of 20-20-20 all ...
5
votes
1answer
93 views

Dracaena Massangeana: Leaf spots on new growth

Over the course of the past week I noticed spots developing on some of the new leaves. These start as faint yellow halos and seem to develop a brown core quickly over the course of a few days. The ...
6
votes
1answer
206 views

Problems with fairy castles cactus

My beloved fairy castles cactus has been suffering for a while and I was wondering what could be happening now. It looks like having several different problems... specially worried as it looks ...