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Medium_dsc_0244 lilly pilly leaves browning off suddenly and rapidly from the tip


I have acmena smithii's about 2 years old, 1.5 metres tall, grown in 45 litre pots on my north facing uncovered deck.

Their growth rate is best described as slow, and in the last 3 months, have stopped growing completely, with virtually no baby leaves despite being spring / summer. I had given them a cut back in early spring just before they stopped growing. I water them regularly, approximately once every two days with about 2+ litres of water each time.

In the last couple of days, I noticed their newer leaves suddenly developing large brown patches that grow in size rapidly. They start from the tip of the branch and within a day or two can spread right down the branch resulting in the entire branch dying and dropping off. It happens more on the younger branches (with lighter green leaves).

What is causing it and how can I stop it?

Submitted: 08:31AM, 08 Jan 2018
Answer: Hi Jim,

Thank you for contacting Yates.

The damage on the leaves there is due to sunburn or scortching. It is common on the lilly pillies in the hotter weather.

You will need to protect the trees from the harsh sun using Yates Droughtshield. This product provides a protective layer or sunscreen on the leaves assist with the reduction of the transpiration or water loss from the leaves and reducing burn. Don’t remove the damaged leaves off the tree as yet as these can provide some additional protection to the leaves below.

As the plant is also slow to grow, it may require a good feed. Feed regularly with Yates Dynamic Lifter Liquid to give it a regular boost of nutrients to help it grow and cope with the stress as well.

Kind regards

Yates Horticuturalist

Answered: 02:01PM, 12 Jan 2018


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