Successful Treatment of Pink Rot in Palms

[joe_OC]

Found this on researchgate and thought it was worth sharing:

 

https://www.researchgate.net/publication/321347766_First_record_and_Disease_Management_of_PinkRot_in_Cocos_Palm_Trees_in_Egypt

 

 

[joe_OC]

[James B]

Nice! So is Copper Oxycloride the same as liquid copper fungicide or a new compound?

[joe_OC]

Haven’t seen any liquid copper fungicides with that ingredient, but I found it available online.

[Merlyn]

Topsin is Thiophanate-Methyl, which is readily available and not too expensive.  Clearys 3336F, Southern AG thiomyl and Banrot all use that.   Copper oxychloride seems fairly cheap too.  If it actually has a 100% cure rate that would be awesome!

[joe_OC]

Topsin has 71% Thiophanate-Methyl, active ingredient while Cleary’s has 41.25% Thiophanate-Methyl.  Found it on Amazon for $80 for 5lbs.

[Phoenikakias]

Could some one recommend dosage of Topsin for root drenching? Particular  metric system is not binding, as there is always the facility of conversion.

[Merlyn]

21 hours ago, joe_OC said:

Topsin has 71% Thiophanate-Methyl, active ingredient while Cleary’s has 41.25% Thiophanate-Methyl.  Found it on Amazon for $80 for 5lbs.

Yep, and the WP is generally way better for storage than an oil solution.  I found the same seller on fleBay selling it for $75.  I've been using Banrot for stuff, which is 25% Thiophanate-Methyl and 15% Etridiazole.  On a price per lb of active ingredient, Topsin is hard to beat!

[Phoenikakias]

So nobody knows the dosage of Topsin for pink rot? Funny! 

[Merlyn]

The linked article says Copper Oxychloride 300gm/100L "spray the tree heart" and Topsin 5g/tree as a soil drench was the rate they used.  So I'd guess just take 5g in maybe 2 gallons of water and pour around the tree you are treating.  It doesn't seem to specify how much Copper Oxychloride was sprayed on each "tree heart."

[Phoenikakias]

1 hour ago, Merlyn2220 said:

The linked article says Copper Oxychloride 300gm/100L "spray the tree heart" and Topsin 5g/tree as a soil drench was the rate they used.  So I'd guess just take 5g in maybe 2 gallons of water and pour around the tree you are treating.  It doesn't seem to specify how much Copper Oxychloride was sprayed on each "tree heart."

Here for a compound called Neotopsin with 70% T-M content is recommended a solution of 70 - 100 gr per 100 lt water. This makes roughly 7 gr per gallon.

[Phoenikakias]

39 minutes ago, Phoenikakias said:

Here for a compound called Neotopsin with 70% T-M content is recommended a solution of 70 - 100 gr per 100 lt water. This makes roughly 7 gr per gallon.

7 gr per 2 gallons I wanted to write.

Edited January 9, 2020 by Phoenikakias

[joe_OC]

5 hours ago, Phoenikakias said:

So nobody knows the dosage of Topsin for pink rot? Funny! 

I haven't used it before.  Just found mixing instructions:  

http://www.cdms.net/ldat/ld4EK000.pdf

Looks like very powerful stuff.  

[joe_OC]

3 hours ago, Phoenikakias said:

7 gr per 2 gallons I wanted to write.

More like 3 grams / 2 gals.   or 1.5 grams/ gal.

The rates the study used was 5 grams/tree.  

Edited January 10, 2020 by joe_OC