Fruit Salad Tree Care | What causes citrus leaves to curl?

February 21, 2019 1 Comment

Fruit Salad Tree Care | What causes citrus leaves to curl?

Citrus Fruit Salad Trees are excellent additions to your garden or balcony. They provide leaves year round, plus delicious sweet and tart fruits such as Oranges, Pomelos, Mandarins, Limes, Tangelo, Lemon and Lemonade and Grapefruit. When citrus leaves start to curl, it can be upsetting, but a little care can remedy the pest or environmental problem. Here's a full rundown on what is causing the leaves to curl and what to do about it, so that you can ensure your Fruit Salad Tree can continue to bear a bountiful harvest.

What is causing my citrus leaves to curl and how can I remedy this?

Windburn

Citrus trees exposed to wind will grow slower than those protected from strong wind. Leaves and fruit can be damage when rubbed against thorns, dead twigs and branches due to the wind. Symptoms of wind injury include misshapen and puckered leaves and the fruit will have irregular brown marks on the rind.

Drought stress

Prolonged heat and little to no water is the most common cause of leaves curling. If the leaves are still green, but curling inward, it is a sign of drought stress. If the soil at the base of the tree is dry, then you need to increase watering and add up to 10cm of organic mulch to the base of the tree to keep the moisture in. Don't place the mulch too close to the trunk of the tree.

Try to 'deep water' your tree by leaving the hose on a trickle overnight so that the water can penetrate and nourish the depths of the root system. Read more about watering your Fruit Salad Tree here.

Pests

The Citrus Aphid

Sap-sucking pests like aphids and mites feed on the juice of the leaves. As their populations grow, they cause deformations including curling, cupping and discolouration. Read more about aphids and citrus trees here.

Treat aphids and mites with Neem oil in the cooler part of the day. Repeat weekly until the pests disappear from the tree.

Citrus tree leaf miner

Citrus leaf miners leave a trail on the leaves. They don't suck the sap like aphids and mites. Instead, they tunnel through leaf tissues as they grow.

It is best to remove the infected leaves and place in the bin to stop the leaf miners moving on to other areas of the garden. You can also spray with Dipel, an organic treatment.

Most citrus trees can tolerate leaf miners to an extent, and they are generally tricky to get rid of, so stay patient and keep up the treatments.

Soil

When the leaves are slightly yellow and bent at the tip, it can mean that the tree is not receiving enough potassium. Check your soil pH levels and nutrients before treating. If nutrients are low, check with your local nursery for an appropriate fertiliser.

Fertilise your tree at least twice a year, in late Winter and late Summer. Older manure is better than younger manure. Your compost is also a great fertilizer. You can also try mixing a slow release fertiliser like Osmocote into the soil or Blood and Bone or Dynamic Lifter. But, limit to only one of two of these fertilizers each application. 

When using fertilizers, keep them away from the trunk of the tree, and top up the mulch when required.

And that's it! Happy harvesting your beautiful citrus Fruit Salad tree!

More Fruit Salad Tree tips

Did you know that you can also train your tree to grow and spread its branches by using stakes and ties. Read more about espaliering here and also training your Fruit Salad Tree here.

As your tree grows, remove rootstock and balance your tree

Remove the rootstock (anything that’s not a fruit graft), balance your tree and remember to thin the first fruit

Here at Fruit Salad Trees, we stock a wide range of fruit trees, which all boast different fruit on the same tree. Each fruit variety retains its own flavour, appearance and ripening time. We graft citrus, stone fruit and multi-apple trees. 

Our fast fruiting trees can be grown in the ground, or in pots on your balcony.

Shop our wide range of trees now and check out our current specials here!

 

For more information caring for your fruit trees, check out the Department of Primary Industries articles on fruit trees.

Read more about leaf curl at Gardening Know How: Curled Leaves On Citrus Plant: What To Do For Curling Citrus 




1 Response

Gaynor Williams
Gaynor Williams

May 02, 2019

Thank you for all the tips and explanations of different happenings of the trees and ha=ow to treat them.
Regards Gaynor Williams.

Leave a comment

Comments will be approved before showing up.


Also in Growing Tips

Cara Cara Blood Orange growing on a Fruit Salad Tree - a multi grafted citrus tree in Australia
Fruit in Focus - Cara Cara Blood Navel (also known as Ruby Navel)

November 15, 2019

Cara Cara Blood Navels are a great citrus fruit variety to consider for your Fruit Salad Tree. They are a great addition to your garden and for you with numerous health benefits. The Cara Cara Blood Navel Orange has a deep pink flesh with an irresistible sweet flavour. It is a seedless variety that can grow quite large. Cara Cara oranges are full of beneficial goodness for your body; they contain vitamin A, folate, Lycopene (a powerful antioxidant) and of course Vi...

Continue Reading

Washington Navel Orange Fruit Salad Trees order online for Australia wide delivery
Fruit in Focus - Washington Navel Orange

November 06, 2019

Washington Navels are one of the most popular orange varieties grown in Australia. They are a great addition to your garden and for you with numerous health benefits. Navels are a perfect for the home cook; adding a gorgeous flavour to your favourite salads, drinks, desserts and marmalades. Grown across Australia in all climates bar frosty alpine climates, Fruit Salad Trees make the perfectly unique gift for your loved ones!

Continue Reading

Fruit in Focus - Meyer Lemon
Fruit in Focus - Meyer Lemon

August 30, 2019

We have so many lovely citrus varieties that you can choose from on our multi-grafted fruit trees; we thought we’d select just one for the month of September. Meyer Lemons are a great citrus fruit variety to consider for your Fruit Salad Tree. Read our brief guide to growing the Meyer Lemon on your Citrus Fruit Salad Tree.

Continue Reading

Sign up for 10% off!

Sign up for 10% off your first order and regular care reminders and specials. You can unsubscribe at any time.