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Tropical Fruit => Tropical Fruit Discussion => Topic started by: green thumps up on May 28, 2020, 12:21:14 PM

Title: Leaves turned yellow after molasses
Post by: green thumps up on May 28, 2020, 12:21:14 PM
I recently foliar fed my wax jambu and atemoya plants thru the leaves with 1oz unsulfured grandma brand molasses and 1oz of fish and kelp emulsion in a gallon of water.  These plants are in pots.

After 2 weeks, some of the leaves are turning yellow with green veins. From the leaves, it looks like a chlorosis of magnesium. Is it deficient in magnesium or iron?

Anyone with similar experiences? How do i correct this?
(https://i.postimg.cc/t755j02z/1.jpg) (https://postimg.cc/t755j02z)

(https://i.postimg.cc/TpBW8CM9/2.jpg) (https://postimg.cc/TpBW8CM9)

(https://i.postimg.cc/JDhb70Tc/3.jpg) (https://postimg.cc/JDhb70Tc)
Title: Re: Leaves turned yellow after molasses
Post by: sunny on May 28, 2020, 12:50:53 PM
My atemoya's also have that and i didn't feed them molasses...i fed them dolomite on the soil but mine look worse than yours.

I thought it came from the ultra high heat here but i have no idea...the one on the hottest spot has very light yellow leaves now, almost white...
Title: Re: Leaves turned yellow after molasses
Post by: roblack on May 28, 2020, 01:18:30 PM
did you add a surfactant or wetting agent?
Title: Re: Leaves turned yellow after molasses
Post by: green thumps up on May 28, 2020, 01:31:15 PM
neither. i didn't add any soap or oil just molasses and emulsion in water.
Title: Re: Leaves turned yellow after molasses
Post by: Triloba Tracker on May 28, 2020, 03:16:27 PM
my 2 cents is that it's not related to the foliar spray at all....i would be concerned about possible iron-deficiency chlorosis caused by alkaline soil conditions.

though that might be a bit strong of a solution (2 oz total per gallon).
Title: Re: Leaves turned yellow after molasses
Post by: enomi on May 28, 2020, 03:20:22 PM
Possibly a Magnesium or Iron Deficiency.

(https://i.postimg.cc/ThmxJQX2/Nutrient-Deficiency-1000x675.jpg) (https://postimg.cc/ThmxJQX2)
Title: Re: Leaves turned yellow after molasses
Post by: green thumps up on May 28, 2020, 04:09:11 PM


Quote from: enomi on May 28, 2020, 03:20:22 PM
Possibly a Magnesium or Iron Deficiency.

(https://i.postimg.cc/ThmxJQX2/Nutrient-Deficiency-1000x675.jpg) (https://postimg.cc/ThmxJQX2)
Title: Re: Leaves turned yellow after molasses
Post by: green thumps up on May 28, 2020, 04:12:02 PM
Quote from: Triloba Tracker on May 28, 2020, 03:16:27 PM
my 2 cents is that it's not related to the foliar spray at all....i would be concerned about possible iron-deficiency chlorosis caused by alkaline soil conditions.

though that might be a bit strong of a solution (2 oz total per gallon).

I thought about that too (soil pH). I dont believe wax jambu and atemoya are pH sensitive plants so they can tolerate in the 7 to 7.5 level, correct.
Title: Re: Leaves turned yellow after molasses
Post by: SeaWalnut on May 28, 2020, 04:51:35 PM
Wax jambu and atemoya like high ph .Atemoya likes limestone and wax jambu sodic soil wich has a ph of 8,5+.
What i think it happened its that you feed bacteria with sugar and they used all the nitrogen .
After bacteria dies ,the plant should get available nitrogen again and more than before.
Title: Re: Leaves turned yellow after molasses
Post by: green thumps up on May 29, 2020, 09:29:20 AM
Thanks for your inputs.