For questions related to plant diseases.

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3
votes
1answer
107 views

Why are my morning glories stunted/deformed?

I planted some morning glory vines (Ipomea sp.) outdoors in a box about 10 weeks ago (mid-March, I'm in Zone 8) and they've been underperforming the whole time -- the vines are not even a meter long, ...
6
votes
0answers
34 views

How do I eradicate Pseudoperonospora cubensis on roses?

I have some roses that look like they are infected with Pseudoperonospora cubensis. I currently do not know how to treat this disease and would like a course of action. I have not applied any ...
5
votes
0answers
38 views

Unhealthy plant with dark spots on leaves

See attached plant. Leaves seem to have some issue as identified by dark spots. Any idea what could be wrong?
4
votes
0answers
50 views

How to start over-pachysandra decimated

I had a beautiful, thick, well established patch of pachysandra in my yard that is now decimated. To put it mildly, I don't have a green thumb and since I have a full time job and three young kids I ...
3
votes
0answers
74 views

What is this substance that looks like red sap on my cucumbers?

I have this weird red sap on a few of my cucumbers. I was wondering if anyone has seen this before? These cucumbers were grown in our conservatory in the back garden (facing south) in pots, grown up ...
3
votes
0answers
143 views

Beet plant - leaves turning yellow-brown

I have a beet plant that I grew from seeds. They started off great and healthy. In fact I plucked some leaves to use in a salad. After that some of the leaves are turning yellow and drying up. What ...
3
votes
0answers
256 views

What is causing brown spots on my mint plant?

I have been rooting my mint in water and it rooted, then I found those brown spots appearing. It happened with all the mint plants I had before. I am in Egypt, and it gets morning sun and no afternoon ...
2
votes
0answers
60 views

Plants Fungus Infection

I am new to garden and I have a tomato plant that is infected by fungus. I would like to ask how fungus infects the plant? Does the disease affect the soil, plant or both?
1
vote
0answers
27 views

How to keep cucumber beetles/bacterial wilt from spreading when removing infected plant?

I have some cucumber plants that are very infested with cucumber beetles (mostly striped, some spotted). The plants are dying from bacterial wilt, and although it's hard to access all leaf surfaces ...
1
vote
0answers
48 views

Brown spots appearing on roma tomato leaves

Three weeks ago I bought a roma tomato plant from Home Depot. It was probably about 8 inches tall. Since then, it was in my apartment for a few days and then my friend's apartment for about two and ...