Testimonials Shop News Specials Catalogue Contact Forum Blog My Account My Edibles
Pawpaw - buy 2 get 1 free
Pawpaw - buy 2 get 1 freePecan packFruit Tree for ChristmasGift vouchers
Forum Rules | Updates

<< Back to Daleys Fruit Tree Forum

Avocado Trees dying! HELP!

    19 responses

Sort:
Erin starts with ...
We purchased two avocado trees from Daleys about a month ago. Unfortunately, the day after we put them in the ground, we had a huge storm, flooding the trees. They started to go limp. We called Daleys and were told they had received too much water. The ground was still very wet, so we put the trees back into pots to try to dry them out. It has now been about 3 weeks and they are not improving. Does anyone have any suggestions on what to try to keep them alive?
Pictures - Click to enlarge

Picture: 1

Picture: 2

Picture: 3
About the Author
Erin
Brisbane
15th November 2007 9:54am
#UserID: 428
Posts: 2
View All Erin's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Kath says...
What have you repotted them into? They are very fussy about drainage, they need a well drained potting mix, have you used this or your soil? We would recommend you put them into a shade house until they recover or are established. Even when planted into the ground they will need a little shade structure around them to protect those beautiful green stems from sunburn. Too much sun now will only set your trees back even more. Four star pickets or tomato stakes and some shade cloth around it will certainly help to prevent them from being cooked. Do a drainage test of you soil. Dig a hole, fill with water and time how long it takes to drain away, this is best done when the soil is moist after rain. If it is longer than 15 minutes you will need to mound your planting site, adding lots of organic matter and compost to enrich the soil and improve drainage. Avocados have lots of surface roots so you will looking to get these growing into the mound above ground level.
Avocados are the hardest tree to grow out of all our fruit trees, they are fussy and like a prepared site and they will not accept anything less than perfect drainage. In their natural environment avocados have surface roots that breath just below the surface of the soil, they naturally grow in the rainforests of South America where they are establish under a canopy into decomposed organic matter. It is important to remember this when planting avocados in your orchard and try to replicate these soil conditions.
About the Author
Kath
Cawongla
15th November 2007 1:57pm
#UserID: 2
Posts: 362
View All Kath's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Karina says...
We had a similar problem, after buying a Wurtz avocado (not from Daley's). We repotted it (potting mix) into a much larger pot, very gently without disturbing the roots as we had heard that they don't like root disturbance at all. However, over the next few weeks as the flowers developed, the leaves kept drooping more and more...

Eventually, we thought that it was succumbing to root rot so we tried something drastic (we didn't think that we had anything too loose, it so terrible). We pulled it out of the large pot and washed much of the soil from its roots. It was then that we discovered when it came from the shop it was potted in a black, sticky clay-like sand which was very wet. Washing that off the roots was quite hard, but I tried to be gentle. I also cut off as much of the rotted roots that I could.

We then repotted it (potting mix) into a medium sized pot, sprinkling rooting hormone on the roots to encourage them to grow. We watered it thouroughly and removed all the flowers. When it had finished draining we brought it inside, out of the wind, to a north-facing window. We didn't need to water it for about 3 weeks.

Slowly, the old leaves dried up and fell off, and a new crop of leaves came in and grew to full size. We kept watering it every few weeks or so, and for the first couple of waters we added a bit of rooting hormone.

It is now looking better than when we first brought it home, but I am not planning on moving it outside until after summer, as I don't think that it is yet able to withstand the heat.

We were initially concerned that it had phytophthera root rot, to which avocados are very susceptible. I added some calcium to the soil (finely ground egg shells) as I had read that this inhibited the fungus. However, the root rot had a different pattern (there is a NSW agfact), and the leaves grew back to the normal size which indicates that it was some other root rot.

Our little Wurtz is still in the "special care nursery", but is getting stronger. I hope that some of these suggestions help.
About the Author
Karina
NW Sydney
16th November 2007 12:46pm
#UserID: 254
Posts: 7
View All Karina's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Manda says...
I bought an avocado tree 10 months ago, and planted it in the ground and i have not luck with it. It has not gotten taller, the tips of the leaves tend to go brown. It usually gets the afternoon sun. I had a suggestion that it was not getting enough water and too much sun so i had put stakes around it with a hesson bag as shade and have put bottles [with the bottoms cut off, to act like funnel or dripper into the soil] in the soils to pour water into to ensure that it gets enough water. But have not noticed any changes, it anything i think that it is getting worse - with some of the leaves falling off. Oh and it gets fertiliser - sheep manure. Any suggestions????
About the Author

perth
3rd March 2008 5:59pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Deryn says...
In summer in Perth the trees can not take up enough water for the heat. Due to this the leaves burn, you will have to live with this as extra water will not help
About the Author

 
26th August 2008 5:53pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Manda says...
Hi Deryn,

THanks for that info... yes nothing worked with this one. Unfortunately it died.

I now have a wurtz, which i put in a huge pot so i could move it around in the summer and winter. THe leaves got all brown during the winter, i am hoping this will sort its self out, as the new leaves comes. Appart from that, this one seems to be going ok, but we shall see if this is still the case after the summer.
About the Author

Perth
26th August 2008 8:27pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
alison says...
i have a hass avocado that has lost every leave it had but it has fruit on it is this normal or is it sick its still quite small and the trunk is quite green
About the Author
alison2
brisbane
3rd October 2008 8:26am
#UserID: 1460
Posts: 1
View All alison2's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Paul says...
18 months ago, I planted a Hass avocado - the soil is heavy, with a clay sub-structure, so I planted in a raised mound, with plenty of compost,added dolomite and gypsum (dug gypsum into the original soil before mounding over the top), it took 6 months, but it died. I replanted with the same in the following spring. It's about 7 months old and is now going the same way - the leaves blacken off and die. It has always had a shade cloth around it - I removed this about a month ago, as I thought perhaps it needed more sunlight due the the big wet - but it's still looking very sad - any ideas?
About the Author
Paul33
Lismore NSW
10th April 2011 8:51pm
#UserID: 5167
Posts: 4
View All Paul33's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Peter says...
Improving soil to improve drainage and organic matter, putting shade cloth around it, adding calcium - all of this are good things for avocados. The only thing I would add to give best chances are spraying it with Phosphite, which is a sort of immune booster and protection against Phytophthora.
Oh yes, I am in the club as well: Lost one tree at a young age! The two new ones are planted on a slope with nothing there before - and they doing great so far...
For the people giving several shots: Try to find another spot for the new one as the soil in the old spot might still have the pathogen, if that was the reason of death.
About the Author

Perth
10th April 2011 9:26pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
kert says...
Spray with Yates Antirot . It is a phosphonate fungicide active against phytophthora ;no guarantees though.
About the Author

sydneu
11th April 2011 2:22pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
anne says...
I have planted 2 avo trees, the one is perfect growing well but the other one just a few metres away is not well, strart to colour to brown, we have treat both the same way, same watering and compost, what can it possibly be?
About the Author

perth
29th December 2011 2:13pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Peter says...
Phytophthora cinnamomi is the most common cause of Avocado tree loss, if the decline of the tree should be caused by a root attack.
Very hard to spray now with Phosphite (eg Yates Antirot) as the temperatures are too high for treatment...
About the Author
Peter36
Perth
29th December 2011 3:06pm
#UserID: 5034
Posts: 213
View All Peter36's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Paul says...
I sprayed with Yates anti-rot, and within a couple of weeks it was looking better, it hasn't looked back since!
About the Author
Paul33
Lismore
18th January 2012 2:57pm
#UserID: 5167
Posts: 4
View All Paul33's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Peter says...
Glad to hear Paul. The phosphite treatment will last for a while. Maybe spray again this coming autumn. Unfortunately, if it is P. cinnamomi, it will only be suppressed however not killed, but in addition with your effort on drainage, plenty of organic matter, etc. you have a good chance to manage it.
About the Author
Peter36
Perth
18th January 2012 4:42pm
#UserID: 5034
Posts: 213
View All Peter36's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Mike says...
The main action of phosphonate is
About the Author

Cairns
18th January 2012 5:18pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Mike says...
...as a tonic to allow the tree to grow through the infection rather than as a classic fungicide like copper oxy.If it is serious trunk injections can be used.The fungi will still be there but loads of mulch,organic ferts,P and K with good drainage can suppress it.Dig out and seal cankers if they come out and practice good hygiene so youminimise its spread.
About the Author

Cairns
18th January 2012 5:28pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Erin says...
Hahahaha- @ Peter "Very hard to spray now with Phosphite (eg Yates Antirot) as the temperatures are too high for treatment", VERY hard to spray now- there are no trees to spray! this post was written back in 2007 and the trees have well and truly died! We couldnt save them
About the Author
Erin
 
19th January 2012 11:38am
#UserID: 428
Posts: 2
View All Erin's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Peter says...
Sorry Erin,
the posting was a response to anne, Perth on the 29th of Dec, but would also apply to other people being in similar situations now or in future. So how are you doing - have you planted other avocados for replacement? Do you have now plants in these spots, which ones and how they are doing?
About the Author
Peter36
Perth
19th January 2012 12:12pm
#UserID: 5034
Posts: 213
View All Peter36's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
Mike says...
Was that the finger of blame over past unfruitful advice? Avos and durians are hard to save once they have it.Drainage,mulch and repeated phosphite in the right weather and without any other sort of spray is about your only shot at rescue.The scraped cankers can be covered with oxy choride paste and sealed and diseased limbs burnt.Alliette and a few other treatments have bad reputations for success.
About the Author

Cairns
19th January 2012 6:07pm
#UserID: 0
Posts:
View All 's Edible Fruit Trees
Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)
amanda says...
I was told "U either have Avocado-soil or U don't - it's that simple". I haven't been game to try them again here.
I would even go out on a limb here and say that I don't think they are for novices - if they don't have the "right" conditions...?
About the Author
amanda19
Geraldton. WA
19th January 2012 6:47pm
#UserID: 2309
Posts: 4607
View All amanda19's Edible Fruit Trees

Reply | | Remember to LIKE this Answer(0) LIKE this Question (0)

REPLY to this forum

Email: Password:
display Name: Suburb:  
Pictures: Add Another Picture
Body:
 
Remember to include a picture if possible

<< Back to Daleys Fruit Tree Forum