Tag Archives: Aloe Arborescens

Why does my Aloe Arborescens have black leaves?

Is there a cure?

About a year ago I noticed my Aloe Arborescens were covered in dappled black marks, and after a few months the leaves turned black, shriveled and died.

 Aloe Arborescen - black marks on leaves

Aloe Arborescens – black marks on leaves

There is an old adage: Don’t put off till tomorrow what you should do today.

Unfortunately, I never acted immediately and when I did seek advice I was told it was a virus and there was basically nothing I could do to  cure it. I was then advised to remove all the affected leaves so only the new growth remained. I tried, but after spending many back-breaking hours pulling off the dead leaves I decided the plant was too far gone and we cut it back to ground level.

Apparently Aloe’s are rarely affected by pests although the root and dry rot can be a problem. I was about to give up on my mission to discover the cause of the black marks when someone suggested it could be a fungus due to humidity. Ah ha! After an extensive search of the web looking for clues I discovered:

Insects such as aphids and snout beetles sometimes attack aloes, and they occasionally fall prey to fungal diseases, such as rust, especially if they are growing close together. Spray the plants with a systemic insecticide to stop the sucking insects in their tracks.
Make sure that the poison runs into the growth points between the leaves as well. A fungicide with a copper base can help to control diseases such as rust, which are a nuisance in humid climates.

Credit: An article published on The Gardener

I am on a mission to find a fungicide with a copper base to save my one remaining Aloe Arborescen growing in another part of the garden. Can anyone recommend a product which I can buy here in Portugal or from the net?

Aloe Arborescen with black marks on leaves

Aloe Arborescen with black marks on leaves

All the plants pictured above have since been cut down to ground level in the hope they will regrow and I will get a second chance.

Fingers crossed!

Does anyone have any other suggestions or advice, please?

Other useful websites:
TipsPlants.com
PlantsAfrica.com

December Garden Bloggers Bloom Day in Portugal

On the 15th of each month I participate in a gardening blog hop called Garden Bloggers Bloom Day where garden bloggers all over the world share what is currently blooming in their garden.

So what’s blooming in Piglet’s plot?

The temperatures here in the Western Algarve have not dipped below 3C at night and have hovered well over 12C during the day. In fact last night it was 18C. We’ve had lots of rain as well as sunshine so the perfect combination for hungry mosquitos as well as a variety of plants.

Purple succulent with pink flowers

Purple succulent with pink flowers

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Succulent with orange flowers

succulent with orange flowers

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Aloe Arborescens

Aloe Arborescens

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Money plant

Money plant

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Agave

Agave

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Poinsettia

Poinsettia

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Hibiscus growing in a pot, December

Hibiscus growing in a pot, December

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Gazania in December

Gazania in December

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Osteospermum in December

Osteospermum in December

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Strawberry flowers in December

Strawberry flowers in December

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Related posts
November Garden Bloggers Bloom Day in Portugal
October Garden Bloggers Bloom Day in Portugal