Plant organ used for photosynthesis

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3
votes
1answer
17 views

Brown spots with yellow on cucumber and tomato plants

Leaves of some my Cucumber and tomatoes plants are browning with yellow frames. also some of the stems of tomato plants appear to have a dark brown rust on them. Is this a fungus?
1
vote
1answer
28 views

Who keeps tearing the leaves off my melons?

I have a small garden in my backyard (a 4x4 "square foot" garden). It has a variety of different plants in it. Recently I tried to grow melons in it (watermelons and cantaloupes). But, shortly after ...
6
votes
0answers
29 views

Why are the leaves on my mango tree turning brown and drying out?

I grew a mango tree last summer from seed in a pot. In the beginning it was extremely healthy looking and fast-growing. When the summer was over, as it gets very cold here in Canada, I took it indoors ...
5
votes
0answers
23 views

Why are some leaves on my tomato seedlings turning dark and falling off?

I am trying my hand at balcony tomatoes and sowed some in mid March. I already transplanted them once from the seed nursery to small drinking cups of about 200ml. Since they were bending too much ...
3
votes
0answers
17 views

Only top leaves left on Euphorbia pulcherrima

Most leaves on my Euphorbia pulcherrima falled down, there are only left on the top of plant. It now looks a bit odd I'd like to ask what to do with it. Can I cut the top (will the top grow if I ...
3
votes
0answers
66 views

Strange brown/dead spots on leaves?

What I have here is a plant which is being affected by something which is making certain spots of its leaves appear to be unhealthy. Does anyone have any idea what's going on? Is this something that ...
3
votes
0answers
92 views

Why has my kiwi plant developed red leaves?

I have grown a kiwi plant which is growing nicely in my office. Recently, some leaves developed a red hue. What is happening here? Do I have to worry?
2
votes
0answers
15 views

Translucent spots on leaves

Recently several of my plants have developed these translucent spots on their leaves. What is causing this? What should I do? [
1
vote
0answers
18 views

Why are the tips of my hardneck garlic plants dying?

I've noticed that the tips of my hard neck garlic leaves are dying, and was wondering if this is normal, or not, because the flower stalk hasn't come up yet. What am I doing wrong/right? What should ...