Bananas.org - View Single Post - Can you confirm my Suspicion: Black Sigatoka

zfallon84 · 08-19-2018, 11:57 AM

When I first joined, I had what has turned out to be a spider mite problem (Tiny Black spots on Leaves, and pseudostem. Help?). I've recently moved all of my bananas to an open space, on a raised platform, and have been treating regularly with an "organic" Neem oil spray. Everything is going fine with all of my plants, except this new Manzano pup that I got from someone in south Florida. When I received the banana bulb I soaked it in a bucket of bleach water, rinsed it, dried it, and then planted it - keeping it separated from the other bananas until it put out a few leaves (my personal protocol for bulbs purchased). The first two leaves looked fine until the third came up - then symptoms arose.

The way I care for my plants has not changed since the post linked above, execpt I changed the soil to what most people here have recommended - 1/3 compost, 1/3 sand, 1/3 perlite.

The reasons I believe it has Black Sigatoka:
1) Newest cigar leaf had necrotic damage, despite being regularly sprayed with neem oil mix (contained "organic" pesticide)
2) The two developed leaves had up to stage 5 symptoms listed here: Black leaf streak | ProMusa - the banana knowledge platform
3) Black Sigatoka is in south Florida.

Here are some pics of the removed leaves (some glare unfortunately). The leaves are in order from newest to oldest:
https://imgur.com/4QKObIh

https://imgur.com/6IHlzzZ

https://imgur.com/rnwBBHL

Thanks for any input since I am still learning. It helps me out as a nanner head. I really want to figure this out because all of my neighbors have bananas. I really don't want to bring in a disease and ruin their landscaping.

08-19-2018, 11:57 AM	#1 (permalink)
zfallon84 zfallon84's Photo Gallery Location: Jacksonville, FL Find me on the map! Zone: 9a Name: Zach Join Date: Jan 2018 Posts: 163 BananaBucks : 35,668 Feedback: 0 / 0% Said "Thanks" 440 Times Was Thanked 193 Times in 107 Posts Said "Welcome to Bananas" 44 Times	Can you confirm my Suspicion: Black Sigatoka When I first joined, I had what has turned out to be a spider mite problem (Tiny Black spots on Leaves, and pseudostem. Help?). I've recently moved all of my bananas to an open space, on a raised platform, and have been treating regularly with an "organic" Neem oil spray. Everything is going fine with all of my plants, except this new Manzano pup that I got from someone in south Florida. When I received the banana bulb I soaked it in a bucket of bleach water, rinsed it, dried it, and then planted it - keeping it separated from the other bananas until it put out a few leaves (my personal protocol for bulbs purchased). The first two leaves looked fine until the third came up - then symptoms arose. The way I care for my plants has not changed since the post linked above, execpt I changed the soil to what most people here have recommended - 1/3 compost, 1/3 sand, 1/3 perlite. The reasons I believe it has Black Sigatoka: 1) Newest cigar leaf had necrotic damage, despite being regularly sprayed with neem oil mix (contained "organic" pesticide) 2) The two developed leaves had up to stage 5 symptoms listed here: Black leaf streak \| ProMusa - the banana knowledge platform 3) Black Sigatoka is in south Florida. Here are some pics of the removed leaves (some glare unfortunately). The leaves are in order from newest to oldest: https://imgur.com/4QKObIh https://imgur.com/6IHlzzZ https://imgur.com/rnwBBHL Thanks for any input since I am still learning. It helps me out as a nanner head. I really want to figure this out because all of my neighbors have bananas. I really don't want to bring in a disease and ruin their landscaping.