Spots on GM fruit

louis14 · 06-19-2018, 01:57 AM

I wonder if members could recommend how to avoid the presence of an excess amount of spots such as these. Thank you!

edwmax · 06-19-2018, 06:34 AM

It would depend on what caused the spots, insect bites or fungus.

Plastic bags over the fruit early on and while developing can keep off the insects. General spraying will help too.

Use a fungicide on the bunch to help control the fungus. Copper sulfate is regularly used and will control a number of fungus types.

Just make sure what ever is sprayed on the fruit will break down after a few days leaving no harmful residue on the fruit.

louis14 · 06-19-2018, 07:02 AM

Quote:

Originally Posted by edwmax

It would depend on what caused the spots, insect bites or fungus.

Plastic bags over the fruit early on and while developing can keep off the insects. General spraying will help too.

Use a fungicide on the bunch to help control the fungus. Cooper sulfate is regularly used and will control a number of fungus types.

Just make sure what ever is sprayed on the fruit will break down after a few days leaving no harmful residue on the fruit.

Thanks for the heads up.

We have not noticed any insects, I am thinking especially of fire ants that could cause these spots as they do to our mangoes. Fungus! I had not envisaged that possibility. I will check fruit tomorrow with a microscope and we will start some immediate spray applications just in case

Akula · 06-19-2018, 10:53 AM

Below is a link to a pretty cool banana plantation tutorial put out by the Australians. A couple fruit diseases are addressed on page 159.

http://era.daf.qld.gov.au/id/eprint/...-banana-ki.pdf

louis14 · 06-19-2018, 04:54 PM

Quote:

Originally Posted by Akula

Below is a link to a pretty cool banana plantation tutorial put out by the Australians. A couple fruit diseases are addressed on page 159.

http://era.daf.qld.gov.au/id/eprint/...-banana-ki.pdf

Brilliant document Akula!
Thanks a million

edwmax · 06-19-2018, 07:13 PM

Two more references for info:
https://www.google.com/url?sa=t&rct=...bCQdW7duaNLsQ-

https://www.gardeningknowhow.com/edi...d-diseases.htm

Akula · 06-20-2018, 12:15 AM

Louis, the whole subtropical banana growers kit can be found here:

Subtropical Banana Information Kit. Agrilink, your growing guide to better farming guide - DAF eResearch Archive (eRABBB)

Probably a few good bits and ideas in there you might be able to use.

I enjoy the updates of your plantation! Good luck!

edwmax · 06-20-2018, 07:14 AM

From one of the references above Banana rust thrips could be the cause of the spots and splitting of the peel. These are controllable with insecticide and bagging.

Quote:

Thrips – Banana rust thrips (C. signipennis), as its name suggests, stains the peel, causing it to split and exposes the flesh which then begins to rot. Insecticidal dust (Diazinon) or a spraying of Dieldrin can control thrips, which pupate in the soil. Additional insecticides combined with polyethylene bagging are also used to control thrips on commercial farms.

louis14 · 06-20-2018, 09:22 AM

Rust Thrips
Absolutely agree!
We are implementing pest control to counter this problem. It is a shame as until now our bananas were 100% organic. There is currently no functionning organic solution for this infestation so we will have to spray with appropriate pesticides.
At least both spots and fruit splitting seem to originate from the same vector.
My sincere thanks to everyone who helped in identifying the problem. This forum is just amazing!

06-19-2018, 01:57 AM	#1 (permalink)
louis14 Location: Northern Thailand Find me on the map! Join Date: Nov 2017 Posts: 285 BananaBucks : 54,178 Feedback: 0 / 0% Said "Thanks" 155 Times Was Thanked 559 Times in 140 Posts Said "Welcome to Bananas" 0 Times	Spots on GM fruit I wonder if members could recommend how to avoid the presence of an excess amount of spots such as these. Thank you!

06-19-2018, 06:34 AM	#2 (permalink)
edwmax Location: Cairo, Ga Find me on the map! Zone: 8b Join Date: Aug 2016 Posts: 2,891 BananaBucks : 88,702 Feedback: 0 / 0% Said "Thanks" 1,741 Times Was Thanked 4,440 Times in 2,095 Posts Said "Welcome to Bananas" 414 Times	Re: Spots on GM fruit It would depend on what caused the spots, insect bites or fungus. Plastic bags over the fruit early on and while developing can keep off the insects. General spraying will help too. Use a fungicide on the bunch to help control the fungus. Copper sulfate is regularly used and will control a number of fungus types. Just make sure what ever is sprayed on the fruit will break down after a few days leaving no harmful residue on the fruit. __________________ Last edited by edwmax : 06-20-2018 at 12:38 PM.

06-19-2018, 10:53 AM	#4 (permalink)
Akula Location: Pensacola, Florida Find me on the map! Zone: Zone 9a Join Date: Jul 2017 Posts: 1,236 BananaBucks : 70,360 Feedback: 0 / 0% Said "Thanks" 2,540 Times Was Thanked 2,381 Times in 809 Posts Said "Welcome to Bananas" 128 Times	Re: Spots on GM fruit Below is a link to a pretty cool banana plantation tutorial put out by the Australians. A couple fruit diseases are addressed on page 159. http://era.daf.qld.gov.au/id/eprint/...-banana-ki.pdf

06-19-2018, 07:13 PM	#6 (permalink)
edwmax Location: Cairo, Ga Find me on the map! Zone: 8b Join Date: Aug 2016 Posts: 2,891 BananaBucks : 88,702 Feedback: 0 / 0% Said "Thanks" 1,741 Times Was Thanked 4,440 Times in 2,095 Posts Said "Welcome to Bananas" 414 Times	Re: Spots on GM fruit Two more references for info: https://www.google.com/url?sa=t&rct=...bCQdW7duaNLsQ- https://www.gardeningknowhow.com/edi...d-diseases.htm __________________

06-20-2018, 12:15 AM	#7 (permalink)
Akula Location: Pensacola, Florida Find me on the map! Zone: Zone 9a Join Date: Jul 2017 Posts: 1,236 BananaBucks : 70,360 Feedback: 0 / 0% Said "Thanks" 2,540 Times Was Thanked 2,381 Times in 809 Posts Said "Welcome to Bananas" 128 Times	Re: Spots on GM fruit Louis, the whole subtropical banana growers kit can be found here: Subtropical Banana Information Kit. Agrilink, your growing guide to better farming guide - DAF eResearch Archive (eRABBB) Probably a few good bits and ideas in there you might be able to use. I enjoy the updates of your plantation! Good luck!

Members currently in the chatroom: 0
	The most chatters online in one day was 17, 09-06-2009. No one is currently using the chat.

06-20-2018, 09:22 AM	#9 (permalink)
louis14 Location: Northern Thailand Find me on the map! Join Date: Nov 2017 Posts: 285 BananaBucks : 54,178 Feedback: 0 / 0% Said "Thanks" 155 Times Was Thanked 559 Times in 140 Posts Said "Welcome to Bananas" 0 Times	Re: Spots on GM fruit Rust Thrips Absolutely agree! We are implementing pest control to counter this problem. It is a shame as until now our bananas were 100% organic. There is currently no functionning organic solution for this infestation so we will have to spray with appropriate pesticides. At least both spots and fruit splitting seem to originate from the same vector. My sincere thanks to everyone who helped in identifying the problem. This forum is just amazing!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
weird brown spots inside the fruit	keikikid	Main Banana Discussion	0	09-15-2014 02:17 AM
Please Help (spots)	shawndac1	Main Banana Discussion	6	02-11-2014 02:54 PM
Black spots on fruit	Brian_Banana	Banana Plant Health And Maintenance Topics	6	09-08-2013 10:07 PM
fruit hot spots in thailand	s_constancy	Tiki Hut	0	03-30-2011 11:30 PM
Red spots?	Whatever	Main Banana Discussion	5	06-04-2008 02:06 PM