Help needed with Mango tree disease

kkrobinson1March 19, 2013


IâÂÂm a new gardener in Ft. Lauderdale, FL (zone 10b), and am not having any luck with my Mango tree. I bought it from a nursery five months ago and was told to hold off giving it fertilizer till the spring. However, this week I took a close look at the leaves and they seem to have some type of bug eating them. WeâÂÂre having a Rugose spiraling whitefly problem and itâÂÂs really beating up my banana trees, but the Mango tree leaves have strange spots on the top and blisters on the bottom (See pics), which donâÂÂt look anything like the white fly problems on the banana leaves.

Can anyone tell me what kind of bug/disease is on the leaves?

I've sprayed the leaves with Neem once, which didn't do anything, but I've read that I should spray every 7-10 days for it to be effective. Is it safe?

Also, is there a webpage for tropical fruit diseases for newbies anywhere?



Thank you for reporting this comment. Undo

picture in lower left, looks like scale (your "blisters"), and maybe some spiraling whitefly activity.


Here is a link that might be useful: citrus scale

    Bookmark   March 20, 2013 at 5:27AM
Thank you for reporting this comment. Undo
puglvr1(9b central FL)

Yup, it looks like scale to me need to treat with some insecticide maybe some soap and water or a light treatment of horticultural oil (HD or Lowe's)...but please be careful when you treat it after sunset or sundown (not in direct sun) or you will sunburn the leaves. Keep in the shade for a day or two after treating...

Neem is good but its very slow to work...I've actually used soap and water and manually removed them with a soft sponge..its tedious work and works if the tree is small and you have the time and energy to do it,lol...

Good luck!!

    Bookmark   March 20, 2013 at 11:17AM
Thank you for reporting this comment. Undo

Thanks for info and advice dangermouse01 and puglvr1.The tree is n my yard so it gets full sun. I'll spray the whole tree (top and bottom of the leaves) in the later afternoon so that it won't get any sun for 12+ hours


    Bookmark   March 20, 2013 at 10:38PM
Thank you for reporting this comment. Undo

If your tree is still small (and I am guessing it is), I would start by just wiping off as much of the scale from each leaf with a damp rag as puglvr1 mentioned. You could even use the soap & water or horticultural oil to dampen the rag, then you wouldn't have to spray. Dead scale doesn't necessarily fall off so by wiping them all off and starting with a "clean slate" you have a better visual of any new scale forming later.


    Bookmark   March 21, 2013 at 5:51AM
Thank you for reporting this comment. Undo

Thanks DM. I'll get to work this weekend. Any idea what the small white spots on the top of the leaf are? I've scratched some of them off with my nail.

    Bookmark   March 21, 2013 at 8:58AM
Thank you for reporting this comment. Undo
puglvr1(9b central FL)

My guess is the white stuff might be egg sacs?? You'll have to check them weekly and spray them with soap/water or treat it according to directions on the insecticide if you decide to use it, again making sure its not treated in the sun/heat of the day...

"Mango Scale pdf"

    Bookmark   March 21, 2013 at 3:30PM
Thank you for reporting this comment. Undo

Thanks Puglvr1,

I carefully cleaned every leaf and now spray it biweekly with insecticidal soap and the leaves are bug-free.


    Bookmark   April 15, 2013 at 8:40PM
Thank you for reporting this comment. Undo
puglvr1(9b central FL)

You're welcome and best of luck!!

    Bookmark   April 16, 2013 at 8:12AM
Sign Up to comment
More Discussions
Cool climate Mango flowering.
Notice the flower structure seems very compact? Rootstalk...
My wee lychee: what does it need?
I have a lychee sapling, that I grew from a grocery-store...
Moringa O. seeds trade for tropical fruit ?
I have several dozen Moringa seeds, i already have...
Gac harvest
just finished my harvest of gac fruits
emperor lychee arrived, white new leaves???
I just got my emperor lychee today from plant o gram....
Jesse Machuca-Vega
Sponsored Products
Fine Mod Imports Shadow 5 Piece Outdoor Seating Set in Resin Wicker
Beyond Stores
Fresca Energia Orange 36” Modern Bathroom Vanity and Three Panel Folding Mirror
Maxalot Up North Mix Wall Mural by Christian Montenegro
$310.00 | Viesso
British Colonial Outdoor Bench Cushion, Patio Furniture
$675.00 | FRONTGATE
Gallatin Accent Table
Home Decorators Collection
Jesper Office | Elsa Desk Chair
Slither Dining Side Chair in Yellow
$99.00 | LexMod
Offset Stainless Steel Kitchen Sink
MR Direct Sinks and Faucets
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™