View Full Version : Banana leave Damage
Danounet
02-08-2017, 10:59 AM
What is the damage in these new banana leaves, is it cold weather?
The Goldfinger has it the most, the manzano new leaves a little bit. Orinoco and gran nain have none.
Here is the Goldfinger
http://i5.photobucket.com/albums/y188/elpanaaqui/20170208_103205.jpg (http://s5.photobucket.com/user/elpanaaqui/media/20170208_103205.jpg.html)
http://i5.photobucket.com/albums/y188/elpanaaqui/20170208_103215.jpg (http://s5.photobucket.com/user/elpanaaqui/media/20170208_103215.jpg.html)
Thanks
geissene
02-08-2017, 12:43 PM
Gosh I hope that is temperature related!
I have the same problem with my patupi pup in my house. The leaves come out with similar brown patches and have a hard time to unfurl. I usually have to help open the new cigar leaves. The new leaves stay light green for several days before darkening up. The main plant stopped growing twice now, but it always pups a few days later. I'm stuck in this grow/die cycle and haven't figured it out.
Interestingly, I have a raja puri and VC plant that share the same conditions and they are just fine!
Erik G
edwmax
02-08-2017, 04:19 PM
What type of fertilizer are you using and how often is it applied? ... Cold weather would have effected more than the cigar leaf. ... So I think you have a nutrient deficiency; probably several (baron, potassium, calcium). The delayed greening of the cigar leaf would point to lack of sulphur.
Check the ph of the soil. I think alkine soil might stop or reduce the up take of some nutrients and fertilizer (???) even tho there is nutrient & fertilizer available. Bananas like a slight acid (6.5 - 6.0) soil.
I would apply a complete nutrient supplement to the soil. But this will take weeks before the roots can take it up; may be longer if the roots are impaired. So in addition, I would start using a folar spray with nutrients and a little fertilizer; once a week for 4 to 6 weeks. The plant will take in the folar spray immediately.
Could there be another reason the root might be impaired? Thus, back to the opening question of this post. How much fertilizer and how often?
Danounet
02-08-2017, 06:08 PM
What type of fertilizer are you using and how often is it applied? ... Cold weather would have effected more than the cigar leaf. ... So I think you have a nutrient deficiency; probably several (baron, potassium, calcium). The delayed greening of the cigar leaf would point to lack of sulphur.
Check the ph of the soil. I think alkine soil might stop or reduce the up take of some nutrients and fertilizer (???) even tho there is nutrient & fertilizer available. Bananas like a slight acid (6.5 - 6.0) soil.
I would apply a complete nutrient supplement to the soil. But this will take weeks before the roots can take it up; may be longer if the roots are impaired. So in addition, I would start using a folar spray with nutrients and a little fertilizer; once a week for 4 to 6 weeks. The plant will take in the folar spray immediately.
Could there be another reason the root might be impaired? Thus, back to the opening question of this post. How much fertilizer and how often?
I haven't used any fertilizer at all, as far as ph I will have to go to the store and get a ph meter thingy
Thanks
Tytaylor77
02-08-2017, 07:12 PM
It's common. Happenes to me every year usually in the spring. I believe it's something to do with sunburn. Either the stronger sun on the sensitive emerging cigar leaf or dew magnifying the sun as the cigar leaf emerges maybe. Don't worry it will correct itself.
pitangadiego
02-08-2017, 09:47 PM
Banana leaves are "trailing indicators" - that is, as they emerge they give you information about plant health and stresses that happened a week or two ago.
If you leaves looked this way as they emerged, there was a stress event prior to their emergence, for example, due to root rot caused by heavy rain and resultant soggy soil for an extended period of time.
If the leaves emerged fine, and now have brown spots as shown, then it is most likely due to an environmental stress, such as sunburn.
If the leaves are indicating a stress which happened in the past, then, if new leaves emerge healthy, there is no further issue - it has been resolved.
Juicy Bananas
02-08-2017, 11:01 PM
Banana leaves are "trailing indicators" - that is, as they emerge they give you information about plant health and stresses that happened a week or two ago.
If you leaves looked this way as they emerged, there was a stress event prior to their emergence, for example, due to root rot caused by heavy rain and resultant soggy soil for an extended period of time.
If the leaves emerged fine, and now have brown spots as shown, then it is most likely due to an environmental stress, such as sunburn.
If the leaves are indicating a stress which happened in the past, then, if new leaves emerge healthy, there is no further issue - it has been resolved.
He is spot on. It has not rained here for about 2 weeks and several of my nanners have had slight leaf burn. Which leads me to believe they had poor nutrient uptake as well.
Danounet
02-09-2017, 02:23 PM
Ok thanks guys, just wondering what it was, there was a cold front couple of weeks ago, but one of those days it rained at night time all the way to morning, very cold water. Im thinking thats what it was, but I didnt want to asume anything.
Thanks
vBulletin® v3.6.8, Copyright ©2000-2020, Jelsoft Enterprises Ltd.