Tropical Fruit Forum - International Tropical Fruit Growers



Author Topic: Help! I need to save this mango tree  (Read 331 times)

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Help! I need to save this mango tree
« on: August 12, 2017, 09:19:24 PM »
Hello, my mango seedling was suffering from anthracnose, and now large dry dead spots are forming on the old leaves, will it die? I've sprayed agri fos and copper fungicide weekly, and i removed the shade cloth a few days ago.




bsbullie

  • Hero Member
  • *****
  • Posts: 8078
    • USA, Boynton Beach, FL 33472, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #1 on: August 12, 2017, 09:44:14 PM »
I dont see any evidence of anthracnose.  For such a small seedling, you are treating with a lot of chemicals.
- Rob

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Re: Help! I need to save this mango tree
« Reply #2 on: August 12, 2017, 10:06:32 PM »
will the chemicals kill the tree? Thanks, Matt

bsbullie

  • Hero Member
  • *****
  • Posts: 8078
    • USA, Boynton Beach, FL 33472, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #3 on: August 12, 2017, 10:11:49 PM »
will the chemicals kill the tree? Thanks, Matt

For such a young tree,  its getting way too much.  Since I could not see the anthracnose in the pictures,  dont think I would even be soraying it with anything nor would I fertilize it at this age.

What soil are you using and how often are you watering,  and with what type of water.
- Rob

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Re: Help! I need to save this mango tree
« Reply #4 on: August 12, 2017, 10:14:04 PM »
I used sterile sandy loam, and i have not fertilized at all, only a thin layer of mulch to keep in the water. I also use regular city water, which essentially smells like a pool. Will it recover? Thanks, Matt

bsbullie

  • Hero Member
  • *****
  • Posts: 8078
    • USA, Boynton Beach, FL 33472, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #5 on: August 12, 2017, 10:21:46 PM »
I used sterile sandy loam, and i have not fertilized at all, only a thin layer of mulch to keep in the water. I also use regular city water, which essentially smells like a pool. Will it recover? Thanks, Matt

Is the sandy loam from the ground?  I assume your water has a high chlorine level , and doesnt it have high salt content also?
- Rob

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Re: Help! I need to save this mango tree
« Reply #6 on: August 12, 2017, 10:23:27 PM »
The sandy loam was the planting mix i used, and the chlorine levels are crazy high, and salt is off the roof. I can't grow avocados or lychees without a carbon filter or using RO water. Will the chemicals kill the mango tree? is it too late?

bsbullie

  • Hero Member
  • *****
  • Posts: 8078
    • USA, Boynton Beach, FL 33472, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #7 on: August 12, 2017, 10:32:41 PM »
The sandy loam was the planting mix i used, and the chlorine levels are crazy high, and salt is off the roof. I can't grow avocados or lychees without a carbon filter or using RO water. Will the chemicals kill the mango tree? is it too late?

I would prefwr a more eounded potting mix.  Try using RO and flush the post to get the buildup of salts and minerals in case that is causing an issue and then stop the fungicides.   Do you have any shade cloth (like 35%) you could set up to put the seedling under?
- Rob

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Re: Help! I need to save this mango tree
« Reply #8 on: August 12, 2017, 10:35:05 PM »
I do indeed, its shaded from midday sun by the orange tree next to it. I could use the shade cloth to help it get started. Thanks so much for the advice! Ill just leave it to its own devices until winter comes. The new growth looks great though....

simon_grow

  • Hero Member
  • *****
  • Posts: 3983
  • USA, San Diego, CA, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #9 on: August 13, 2017, 10:45:25 AM »
Rob gave great information. On a side note, I get dead spots and misshaped leaves on my young mango seedlings all the time. Har also gave great advice when he mentioned not to water the young seedlings again until the soil has had some time to dry out.

Here are some pictures of some of my mango seedlings. First picture is the younger leaves with dead spots, holes, discoloration, etc... second picture is the newer growth that looks a lot better.


















Simon

AnnonaMangoLord45

  • LeafyMango
  • Sr. Member
  • ****
  • Posts: 260
  • I love Mangoes
    • SoCal zone 10b
    • View Profile
Re: Help! I need to save this mango tree
« Reply #10 on: August 13, 2017, 01:15:18 PM »
Thank you so much! Sorry for causing so much trouble

simon_grow

  • Hero Member
  • *****
  • Posts: 3983
  • USA, San Diego, CA, Zone 10a
    • View Profile
Re: Help! I need to save this mango tree
« Reply #11 on: August 13, 2017, 06:41:57 PM »
No worries, don't baby your seedlings too much and they'll be fine. Over correcting for minor issues can cause more harm than good.

Simon

 

Copyright © Tropical Fruit Forum - International Tropical Fruit Growers