4 votes
Accepted

Bark on plum tree concern

Older .vs. younger bark. Nothing more.
Ecnerwal's user avatar
  • 23.8k
3 votes

What's wrong with my apple tree?

Leafminers are responsible for the lines within the leaves shown in the first image. These are difficult to control even with using heavy duty pesticides about three times a year, so I wouldn't advise ...
Bamboo's user avatar
  • 133k
3 votes
Accepted

Why are my indoor grown Loquat saplings, grown from seeds, getting wilted and blackened leaves and dying?

You don't say what part of the world you are in, although you must be in the northern hemisphere since you mention ice and cold weather arriving. Loquat trees are not deciduous, so leaf loss should ...
Bamboo's user avatar
  • 133k
3 votes

Are these apple saplings turning yellow due to autumn or to a virus

The answer to this question will depend on the time of year (in this case november) and your region. For many regions in North America and northern Europe, november is a normal time for trees to start ...
Frank Houweling's user avatar
3 votes

Are these photinia's roots normal?

White are new roots, yellow are older roots and dark brown are older less active roots. Everything looks good with this plant! You could repot it as I see a lot of roots at the bottom of the pot. I ...
kevinskio's user avatar
  • 59.6k
3 votes
Accepted

Circular dead spots on Boxwood shrub - identification and treatment

This looks like Box Blight. This is rampant this year where I live in Southern England. Unfortunately, everyone I know who has attempted a cure has failed. The only remedy appears to be to burn the ...
Chenmunka's user avatar
  • 775
3 votes
Accepted

What is eating my garden?

If they are slugs or snails you would have seen them since they will be around. Depending on where you are there can be deer, squirrels, rabbits that will eat up your leaves or plants. If you have a ...
JStorage's user avatar
  • 7,934
2 votes
Accepted

Is this apple canker?

This is the damage as done by woolly apple aphids. These aphids suck tree saps from your apple tree, and by doing so cause these deformations. The deformations themselves are usually not a big issue, ...
Frank Houweling's user avatar
2 votes

Birch Tree; Section of branches have no Leaves

It is possible that it's just the shading effect from each other. Perhaps they are just trying to get past the shade. The large trees do tend to form canopies in the wild. I have never grown ...
Rohit Gupta's user avatar
  • 2,485
2 votes

Identifying issue with apple tree

It appears that the internal chemistry of the seedling has been severely disrupted, possibly by over fertilization. The toxin may still be in the soil, given that you simply potted it up adding new ...
Colin Beckingham's user avatar
2 votes

Disinfecting greenhouse

If it was indeed well ventilated and the roots were not permanently drenched in water then the pathogens (bacteria and fungi) could have arrived via air, insects or birds. You can't do much about ...
Rohit Gupta's user avatar
  • 2,485
1 vote

Is my fairy castle cactus infected with a fungus?

Looks like a rot to me. Yes, for sure it is mold. Cactuses aren't meant to be left thriving in such a rich compost based medium, they prefer sandy soils with ample drainage. They can survive with too ...
Jayparth's user avatar
  • 1,015
1 vote

What are the spots on my lilac bush?

This is likely just transplant shock. The roots have been cut, the tops probably left intact and the roots that are left have a problem keeping up with transpiration from the leaves, so the plant ...
Colin Beckingham's user avatar
1 vote
Accepted

What is this damage on my Anthurium leaf?

This is fungus/bacteria/virus on an Anthurium which is brought on by the root ball being too wet for too long. An anerobic agent finds wet, dark and no oxygen to be a great place to live and then ...
kevinskio's user avatar
  • 59.6k
1 vote

Blueberry Plant is Sick or just Overwatered?

Zero idea what's wrong. In Your shoes - and if I insisted on it surviving - I would repot it into larger pot while preserving all the original soil (water just before as to keep the soil together, ...
Vorac's user avatar
  • 1,248
1 vote

Norfolk Island Pine

If no drainage holes in the pot, repot to one (preferably a bit larger) that has drainage holes. That's the only way I could see it being that much affected by the described overwatering. I had one in ...
Ecnerwal's user avatar
  • 23.8k
1 vote

Clustered white spots on strawberry mint leaves

This looks like Powdery Mildew, it's a very common fungal disease. Try pruning the affected plant parts. Additionally, try to increase air circulation around your plants and avoid watering the plants ...
uriyabsc's user avatar
  • 151
1 vote
Accepted

What is this leaf disease on the Janet Blair?

I have two guesses. Based on your pictures and my favorite azalea diagnostic guide from Washington State University, I think it's either marginal leaf necrosis or fungus leaf spot. They both cause ...
MackM's user avatar
  • 717
1 vote

What is eating my garden?

The first two pictures show very infant plants. Those are usually protected around here from the cold but also from dogs, snail etc by cutting a two liter soda bottle asunder and inserting the upper ...
Vorac's user avatar
  • 1,248
1 vote

Gum excreting from mango fruits

I think they are bruised by rubbing against the fence. If you can actually spot any insects on them, then try spraying Neem oil.
Rohit Gupta's user avatar
  • 2,485
1 vote

What are these strange black lumps on basil plant?

They appear to be slugs or snails. Unclear which from these pictures. Snails have shells, slugs don't; both are gastropods and eat vegetation. Picking them off into a container of soapy water is one ...
Ecnerwal's user avatar
  • 23.8k
1 vote

avocado leaf getting black spots near vein

I don't know what they are. My best guess is a minute sap sucking creature. I found them on my year old avocado where they caused patches of paling of the leaf. I found I could scrub them of with a ...
Richard Avery's user avatar
1 vote

Marigolds, clovers, and other plants have leaves mottled with white

From My Marigold Leaves Have White Spots The red spider mites cause white spots on marigolds. They leave white weaves of webs, feed off your plants, turn the leaves yellow, and slowly kill your ...
Rohit Gupta's user avatar
  • 2,485
1 vote

What are these spots on my new bamboo palm?

In the South, in a coastal climate, Phyllostachys can develop brown spots on the canes due to a harmless fungus. There have also been reports in the Southeast of a disease that top kills bamboo, but ...
Anthony's user avatar
  • 11
1 vote

What is the powdery mildew and why are my cucumbers not growing beyond 1 inch?

I'm Kristen! I used to have the same issue as I used to water my plants a little on the late side. Night watering in certain areas can really stir up the mold if the moisture and temperature are just ...
Kristen's user avatar
  • 11
1 vote

My Air Plant (Kalanchoe Pinnata) is attacked, how do I save it?

This little green worm is a caterpillar. It is presumably red pierrot and is going to eat away all your plant. It's typical host plant is Kalanchoe and it is an exceptional leaf miner. So it will stay ...
surabhi shubham's user avatar

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