29
votes
Accepted
Why did my sweet corn kernels grow into this?
That's corn smut, a fungus. It's edible and a part of Mexican cuisine. I doubt that you need to notify the authorities, but given that USDA has been trying for decades to eradicate it in the US, it's ...
- 18.6k
19
votes
What is this green-ish thing inside the orange?
Preface: This answer is based solely on the search result. I'm not a gardener and I don't have any gardening knowledge to sufficiently answer this with full certainty.
Looking at the picture, it ...
- 295
12
votes
What is this green-ish thing inside the orange?
Definitely looks like something from a sci fi/horror movie! Black areas within oranges are usually caused by a fungal pathogen - it enters most often at the 'navel' end of the orange and then spreads ...
- 132k
10
votes
Accepted
Why do my Cherry tomatoes split as they ripen?
Small fruiting tomatoes tend to be a lot juicier (that is ratio of meaty pulp to juice) than medium or large fruiting. Tomato produces a skin of a certain size for the number of fruits it has, then as ...
- 20.4k
10
votes
Why do my Cherry tomatoes split as they ripen?
There are two main causes of fruit split - the first is irregular watering. Once tomatoes have fruitlets, and especially as they start to get bigger and ripen, its critical to water sufficiently every ...
- 132k
9
votes
What are these abnormal tomatoes on my tomato plant?
This looks like blossom end rot. Here is another source of info.
According to the second link, which is from Clemson University:
After tomatoes are planted, gardeners can minimize the potential ...
- 7,027
9
votes
What's wrong with this fig?
Those white dots are spider mites. There are a lot of them so you will need to apply at least three treatments of soap and water at a rate of 5 ml /liter at five to seven day intervals. This will ...
- 58.8k
8
votes
Accepted
Can rubber gloves spread plant diseases?
It's certainly possible to spread some fungal infections on gardening gloves and tools you may have used. Given you're wearing rubber gloves, after handling diseased plant material, its sensible to go ...
- 132k
8
votes
Accepted
What is this Apple disease?
Probably Apple Scab, which is an issue where you are, as it is in many parts of the world. It's caused by a fungus, and it affects the twigs behind the fruits and often the leaves too. Some info in ...
- 132k
8
votes
Accepted
What disease is causing raised blisters on the leaves of my plant?
Alstonia scholaris (L.) R. Br. is a very beautiful ornamental tree, which is commonly known as pagoda tree because of its pagoda like growing habit. It is commonly infected by the Homopteran, ...
- 23.1k
8
votes
Need help identifying this disease for my lemon tree
Looks like you have at least two problems. Let's take the last image first which appears to show Citrus Leaf Miner damage. You can see the channels that the miner has burrowed into the leaf.
The ...
- 20.4k
7
votes
Accepted
How to treat diseases and bugs on peach tree?
Peach trees are deciduous and lose their leaves in the winter, so don't worry about that. The leaves can turn gold/brown before they drop. Some munched leaves on a healthy tree are not a problem.
...
- 1,057
7
votes
Why are the leaves on my houseplant turning yellow and getting black spots?
Your plant appears to be an Areca palm which is now known as Dypsis lutescens.
This looks like a combination of factors:
overwatering promotes anerobic conditions in the soil which promote fungus. ...
- 58.8k
7
votes
Accepted
Orange spots on Polypodium
I can't get a close enough image to examine the spots thoroughly, but because they're evenly spaced, its most likely these are sporangia, or spore cases. It's a sign of a healthy plant and the spores ...
- 132k
7
votes
Accepted
What is wrong with this magnolia?
The light green areas are chlorosis, often an indication of iron or manganese deficiency. Magnolias are very quick in developing chlorosis if they don't have enough iron available - typically not ...
- 16.3k
7
votes
It is good to use water of a pond to irrigate my garden?
You only need to be worried about some pathogenic e coli that can be incorporated into plant tissues. And generally these are not found in aquatic environments. The other bacteria, viruses and amoebae ...
- 23.1k
7
votes
Treating tree disease that manifests as warts/galls/bumps on leaves
I can't tell what tree that leaf has come from, so it's difficult to identify precisely the cause of the galls on the leaf. Regardless, the vast majority of gall growths like this do not cause harm to ...
- 132k
7
votes
Accepted
What pest is this and how do I treat it?
This is another case of "dog vomit slime mold", or Fuligo septica.
It pops up unannounced, often on wood chips (which I see isn't your case here), and spreads a little bit, but in sort of a limited ...
- 3,639
6
votes
Is this powdery mildew on my tomato?
That appears to be Southern Blight, Sclerotium rolfsii
It's a fungal disease from the soil, and affects many species of plants. You cannot cure plants infected with it. From the University of ...
- 51.7k
6
votes
Is powdery mildew spreading through my garden?
Looks like some kind of Verbena in the top pic, possibly Verbena bonariensis - these are prone to getting powdery mildew, particularly towards the end of the growing season, and the usual cause is ...
- 132k
6
votes
Accepted
Get rid of pesticide resistant Spider Mites?
Predatory mites that eat spider mites might help. You can buy them, but they may be expensive. Make sure to remove any substances left on the plants that might kill the predatory mites.
We have a ...
- 18k
6
votes
What is the disease that affects my plants?
It does look like Sooty Mould, but its impossible to tell from the picture whether there is a scale or aphid infestation, the end result of which is often sooty mould. Treat the scale or insect pest, ...
- 132k
6
votes
Why is this years-old vine dying and showing strange beige spots?
The plant is Rhoicissus rhomboidea 'Ellen Danica', common name Mermaid Vine, though its often referred to as grape ivy. At first glance, rust infection springs to mind, but a closer examination ...
- 132k
6
votes
Accepted
Can you eat lettuce that your dog pees on
Urine from healthy dogs (and humans) is sterile on leaving the body. It can, however, encourage the growth of existing bacteria: so these you would have been exposed to anyway.
Faeces are not sterile ...
- 2,245
6
votes
Accepted
Is the rapid new growth on this rose bush a sign of Rosette?
These are most likely rose suckers. You should trace it down to where they are originating from (most likely below where your rose was grafted). If that is the case, you want to remove it ASAP from ...
- 7,894
6
votes
Accepted
Discoloration of leaves on Carolina Reaper plants
It's probably just sun damage due to the transplant shock, since those leaves are used to a different kind and amount of light. I have a pepper in that sort of situation, and I had some tomatoes in a ...
- 18k
6
votes
My Areca Palm is dying
First thing to do is correct your watering regime - little and often is not a good idea, it's better to let the plant dry out slightly between waterings, and water thoroughly when you do water. If the ...
- 132k
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