Bannana issue

[msk0072]

My banana plants fruited for the first time during this summer but the fruits look very bad









The fruts were green during the summer and developing normal. 1 month ago turned to grey and than total black like charcoal
2 Plants next to another with the same problem.
What is that issue? Is it dangerous for my plants?

[edzone9]

Looks Like Post-harvest Rots of Banana.

http://www.ctahr.hawaii.edu/oc/freepubs/pdf/pd-54.pdf


Ed

[bsbullie]

Ahhhh....post harvest?  The bananas in question have not yet been harvested.

[edzone9]

True !... What ever it is , don't look too good..
Good Luck with your Musa !...

Ed

[msk0072]

More advices from the experts?
I want to be sure how to eradicate the problem and how to protect my plants

[From the sea]

looks like the tree aborted the fruit, happened to one of mine when the mat was young but the next year it was fine.

[msk0072]

The pictures are from 2 different plants. One next to other Is that happened by chance?

[LEOOEL]

It looks like that variety may not be appropriate for the South Florida location.

[bsbullie]

It looks like that variety may not be appropriate for the South Florida location.

South Florida???  Please tell me, would the following be in Miami-Dade or Broward County: Greece, Crete, Hania, Zone 10b

[buddyguygreen]

Could it have not received enough water, is the a pup connected to it coming up, or is it within a couple feet of other banana trees. All factors that could cause that.

[msk0072]

It looks like that variety may not be appropriate for the South Florida location.

South Florida???  Please tell me, would the following be in Miami-Dade or Broward County: Greece, Crete, Hania, Zone 10b

[msk0072]

Could it have not received enough water, is the a pup connected to it coming up, or is it within a couple feet of other banana trees. All factors that could cause that.

The trees are 2,5 meters apart. Around them are many pups coming up. The watering during the hot summer was every second day and maybe some periods every third day when I was traveling. Could it cause the problem?

[From the sea]

how long have they been in the ground?

[venturabananas]

The short answer is, I don't know, but here's some speculation...

First off, what variety of banana is it?  If it is a seeded (ornamental) variety, lack of pollination could explain the aborted fruit.

If it is an edible variety, I don't see an obvious cause of the aborting of the fruit.  It appears the rest of the plant is healthy, including the rachis (the stalk the fruit are attached to).  That suggests that there isn't some disease or nutritional problem that is affecting the entire plant and the problem is confined to the fruit.  It is possible that there was some major stress (e.g., lack of water or very hot, dry conditions) at a key point in fruit development.

If it isn't a seeded variety, then just ensuring optimal growth conditions is your best bet: heavily mulch to retain water and deliver some nutrients, fertilize regularly with something high in potassium, water adequately, etc.  Also, make sure micronutrients like boron and calcium are at adequate levels.

[PR-Giants]

IDK but when I read it, I thought LEOOEL was simply using their Zone 10b to compare to the Zone 10b of Greece, Crete, Hania.
                                     

It looks like that variety may not be appropriate for the South Florida location.

South Florida???  Please tell me, would the following be in Miami-Dade or Broward County: Greece, Crete, Hania, Zone 10b

[PR-Giants]

I'd start by looking at blood diseases.

Musa Disease Fact Sheet No.3 - BANANA BLOOD DISEASE

Musa Disease Fact Sheets                                                  

[JF]

Ice Cream banana can't someone verify?

[msk0072]

The short answer is, I don't know, but here's some speculation...

First off, what variety of banana is it?  If it is a seeded (ornamental) variety, lack of pollination could explain the aborted fruit.

If it is an edible variety, I don't see an obvious cause of the aborting of the fruit.  It appears the rest of the plant is healthy, including the rachis (the stalk the fruit are attached to).  That suggests that there isn't some disease or nutritional problem that is affecting the entire plant and the problem is confined to the fruit.  It is possible that there was some major stress (e.g., lack of water or very hot, dry conditions) at a key point in fruit development.

If it isn't a seeded variety, then just ensuring optimal growth conditions is your best bet: heavily mulch to retain water and deliver some nutrients, fertilize regularly with something high in potassium, water adequately, etc.  Also, make sure micronutrients like boron and calcium are at adequate levels.

I think you pointed it right. The variety is edible (no id) and the whole plant is healthy.
Thanks for the suggestions

[Jackfruitwhisperer69]

Never seen this problem before, Mike...maybe this variety is not adequate for your climatic situation. I reckon you should try other varieties and see if they will produce healthy bunches.

[PR-Giants]

If the whole plant appears healthy and the fruit were green and developing normal and turned to grey and than total black like charcoal, it could be a vascular disease. Symptoms also vary depending on the strain causing the infection and mode of transmission of the pathogen. Soil borne infection via root transmission produces symptoms initially in the plant while infection via insect transmission initially produce symptoms in the fruit. I recommend taking a sample at both ends of the peduncle and also the rachis when the symptoms are first noticed. And also read about Moko, it is the one more common in Zone 10b.

"The bacterial wilt diseases of banana are systemic and so once infected a plant must
be destroyed in order to prevent further spread of the disease. Although some
strains of these bacteria are insect transmissible much can still be done to halt the
spread of the disease by good cultural practices."

...the whole plant is healthy.

The fruts were green during the summer and developing normal. 1 month ago turned to grey and than total black like charcoal

That suggests that there isn't some disease or nutritional problem that is affecting the entire plant and the problem is confined to the fruit.