Mango Trees (forum)

Kae Bullock starts with ...
I live on the gold coast and have 2 mango trees side by side. Both trees are approx. 5+ years old. Mango 1 has not fruited before, however this year has approx. 20 good sized mangoes. Mango 2 which last year had about 25 large mangos.

Both trees are well fertilized, sprayed with mangozeb and receive 2 weekly solutions of both thrive and liquid posash as well as sea

Mango 1 has developed 2 large cracks in the trunk, which has got wider with heavy rain over the past few weeks.
Question - how can I prevent the cracks from widening and repair the trunk.

Mango 2, despite plenty of flowers no fruit set and the tree is looking very sick with dead leaves. Some of the branches are still green. Have pruned some of the lower branches to relieve stress on tree.

Question: What do I need to do to to fix the tree.
Pictures - Click to enlarge

Picture: 1

Time: 1st December 2013 9:55am

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author kae
Southport Gold Coast
#UserID: 9142
Posts: 4
View All kae's Edible Fruit Trees

gimme says...
Do you have photo of the cracks in the trunk? Your mango might have some fungal diseases.

Time: 1st December 2013 9:30pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author gimme
Brisbane, Qld
#UserID: 2525
Posts: 236
View All gimme's Edible Fruit Trees

Mike and JudyJ says...
Kae, have you ever heard of the phrase, " killing with kindness"?

Quote; "Both trees are well fertilized, sprayed with mangozeb and receive 2 weekly solutions of both thrive and liquid posash ".

You are over fertilising to billyo. The tree is trying to grow so fast that it is splitting the bark, OK. Cut with the fertiliser regime and only fertilise the soil at the most three times a year at the rate of about 50 grams per square metre under the canopy ensuring the last dose is applied just before flowering is expected. Use a general fertiliser that is low N and high K at this point. Small doses are far better widely spaced through the year than regular fortnightly doses. To get fruit set, use Mancozeb and copperoxychloride monthly throughout the year to prevent Anthracnose fungus attacking the flowers and fruit, and when flowers start to emerge, give all spraying a rest until fruit have set and about the size of a pea and then recommence the spraying. If there are louse scale or any other types of scale insects, add an insecticide and white oil to the fungicide mix.

Time: 1st December 2013 10:14pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report
About the Author Mike and Judy J
Mackay
#UserID: 9149
Posts: 2
View All Mike and Judy J's Edible Fruit Trees

Brendan6 says...
Hi Kae, looks like your poor mango trees might have Phytophthora root rot?
Can be from being too wet? Are they dying from the top down?
Might pay to spray them with Yates Anti Rot http://www.yates.com.au/products/disease-control/concentrates/yates-anti-rot/
Avocados & mangoes are attacked by this.

Time: 3rd December 2013 8:53am

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author Brendan
Mackay, Q
#UserID: 1947
Posts: 1722
View All Brendan's Edible Fruit Trees

Brain says...
I'm going to weight in my 2 cents.

Tree #1, you can get some tree sealant to seal up the exposed areas (think of it as a bandage). However, it won't solve the underlying cause and at best you just hope the tree can heal itself. Not sure what caused it though.

Tree #2, the die back is probably due to extreme stress. I'm going to say, it's due to too much fertiliser (i.e. mineral salts) in the soil and cause the water to be 'displaced' by the tree. I.e. water disolved the salt in soil, tree doesn't like it, and 'stop' taking water. On prior years, there was a lot of rain, so this wasn't an issue. However, in the recent months with the dry, the mineral salts has built up. I'd say if you stop the fertiliser regime and your tree should hopefully recover.

Believe it or not, mango doesn't need too much fertiliser to thrive.

Time: 3rd December 2013 3:42pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author Brain
Brisbane
#UserID: 6289
Posts: 638
View All Brain's Edible Fruit Trees

AC1 says...
Caution about using too much seaweed/ fertilisers,they all contains salt and like previous comment combined with big influx of excess water your asking for big trouble.I would cease all fertilser applications till new green growth appears which could be a while I reckon. I hope Ive been of some help.

Time: 3rd December 2013 6:37pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report
About the Author AC1
Adelaide
#UserID: 8055
Posts: 103
View All AC1's Edible Fruit Trees

denise1 says...
But seaweed does have a place. Our garden was transformed from hard clay with the piling up of rinsed seaweed. The ancestors in Ireland opened up furrows, filled them with seaweed and planted potatoes on top. The enhanced fertility meant they thrived on a basic diet. Some crops around the world are actually flooded on purpose with semisaline water to boost growth. But yes there are cases against saline too. cheers.

Time: 3rd December 2013 6:45pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report
About the Author denise1
auckland NZ
#UserID: 6832
Posts: 688
View All denise1's Edible Fruit Trees

kae says...
Thank you everyone for your comments. I have since sprayed the trunks with copper oxychloride and then will seal with a tree sealant.
Yes I believe I have over fertilised for sure and will cease and give the trees time to grow at their own pace.

Great input from everyone and appreciate the time taken to answer my problem.

Time: 5th December 2013 9:33am

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author kae
Southport
#UserID: 9142
Posts: 4
View All kae's Edible Fruit Trees

David says...
First pick of the year a ripe Glenn mango and an R2E2 mango .

Time: 6th January 2015 8:17am

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author David
Springwood
#UserID: 1961
Posts: 670
View All David's Edible Fruit Trees

Slicko says...
Any pics David?

Time: 18th January 2015 10:26pm

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report

About the Author Slicko
Carindale
#UserID: 1775
Posts: 227
View All Slicko's Edible Fruit Trees

Craig says...
How can I tell if these 2 years old mango trees will survive after grass fire
Pictures - Click to enlarge

Picture: 1

Time: 4th April 2020 9:09am

Reply | LIKE this Answer(0) | LIKE this Question (0) | Report
About the Author Craig
WAVELL HEIGHTS,4012,QLD
#UserID: 22014
Posts: 2
View All Craig's Edible Fruit Trees