Brown Leaves-Custard apple (forum)

Elia starts with ...
Hi, bought sometime ago 2 custard apple trees. now i have been having the leaves yellow and with brown edges. is this normal, have i done something wrong? did i feed the trees much. this is my first time with the type of tree hopfully will not be last. could you please advice.
regards
elia

Time: 18th September 2009 11:57am

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About the Author Elia1
Adelaide
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HappyEarth says...
No ... this is normal Elia. You have nothing to fear. They are semi-deciduous. They start to put on new leaves about now.

Rich
www.happyearth.com.au

Time: 18th September 2009 12:54pm

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About the Author HappyEarth
Wollongong
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adelephi says...
Hello,
I started two custard apple trees from seed a few years ago, and have kept them indoors because I live in a cold climate. The trees are now about 7' tall and branching out nicely. Here and there amongst the leaves, however, leaf tips will darken/brown and dry up, the discoloration and drying creeping up the leaf while the remainder of the leaf remains green. One tree appears to have more of the problem than the other; watering, soil and repotting regimens have been the same for each, though. The browning has been happening for a couple years now, and isn't killing the plants, but it is affecting more and more leaves.

Any ideas as to what could be the trouble?

Thank you,
Adele

Time: 11th May 2013 2:05am

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2485 says...
Im growing a Paxtons prolific custard apple.The biggest issue growing subtropicals in is drainage The ground you plant them in must be a raised mound firstly.My plant had similar problem.If The leaves are going crispy brown on th edges and yellow inside this brown margin you have a waterlogging problem.I dont know what soil medium you have but I went to Jefferies Garden soils at Wingfield and bought 4 15L buckets of Washed Filling sand.This is the sand they use in their potting mixes.This sand is similar to playpit or beach sand.DO NOT USE EITHER OF THOSE AS THEY CONTAIN SALT.I could give one serious lecture on drainage in soil mediums.The word drainage is only part right.The sand in the soil medium has a suction aspect to it also which isnt talked about.The sand in the soil mix draws water away from soggy materials like clay woody materials like compost potting mix and natural animal manures.The worst of those is clay.Wet clayee soil will kill custard apple in 3 months .They are vunerable to Phytophera
which alot of fruit trees especially mangoes are vunerable too.You must have a sufficent amount of sand to counteract soggy material in soil .I put a 15L bucket of soil sprinkled it around base of plant,working it into soil by hand,be very careful not to damage roots.Custard apple is related to Paw Paw (Searched wikapedia for family related plants) must be kept dry in winter.Remove mulch in winter as it becomes soggy and allow soil mound to breathe and dry out.I only mulch in summer and watch out in summer for browning leaves which means waterlogging .Remember we can only fix the waterlogging problem in top half of plant with the adding of sand ,do not put too much sand as soil will dry out too quick ,you must put just enough,if waterlogging is occuring deeper you have to watch how much water the plant is getting.I grow all my subtropicals on raised mounds in Adelaide.I hope this is of some help.

Time: 16th June 2013 7:04pm

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About the Author AC1
adelaide
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Anonymous says...
I think its because you have 7 foot trees indoors. Mine are on mounds in the Northern rivers NSW and they still brown off over winter.
They are a whimpy tree,from soft week wood to anything pisses them off.


Time: 16th June 2013 7:24pm

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About the Author MNash1
 
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Anonymous says...
Ive found it difficult to grow any subtropicals in the ground in Adelaide.Mangos are hard to grow but Custard Apples are a pain in the head.
Wet Clay soil and cold weather are a very bad combination for subtropicals in Adelaide.

Time: 19th June 2013 9:03pm

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About the Author AC1
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