Jump to content

  •  

Photo
- - - - -

HELP - Mass Leaf Spot Nightmare


  • Please log in to reply
11 replies to this topic

#1 PepperJam

PepperJam

    Hot

  • Members
  • PipPipPip
  • 723 posts
  • Location:Sugar Land, Texas, USA

Posted 10 March 2012 - 01:18 AM

Went upstairs to check on my plants. I inspected the leaves and i notice brown spots! After some searching, it looks like bacterial leaf spot. During the day it kinda gets warm and humid in there, and the plants are close to each other. So i think that may have contributed to it.

Out of my 80 or so plants, about 30 have bacterial leaf spot in differing degrees.

My questions:
  • What to do now? I heard copper fungicide should help, do i just spray it all over the plant (under side leaves, over leaves?) till its drenched?
  • I also have serenade spray, should i use that instead of copper or complement it?
  • How do prevent this in the future? Add more air flow? Less humidity?
  • I heard cinnamon is also good to apply on top of the soil, will that help too?
Here are some pics

Yea from far they look perfect ...
Posted Image

Look closer now, eeeeek
Posted Image

Posted Image

Posted Image

Posted Image

Posted Image

Edited by PepperJam, 10 March 2012 - 02:04 AM.

2012 Grow Log: www.thehotpepper.com/topic/27468-pjs-2012-grow-log/

#2 Capsicum

Capsicum

    Hot

  • Banned
  • PipPipPip
  • 943 posts
  • Location:Where the peppers grow hot

Posted 10 March 2012 - 01:25 AM

"How do prevent this in the future? Add more air flow?"

What kind ofventilation fans do you have now?

How much do you water/feed?

Yes soap should kill it and stop it from spreading. Do not be scared to use it, it will not hurt the plant.

If you answer those I may be able to see what is going on. I had this happend to me when I was overfeeding and going crazy with fertilizer but it might not be the reason.

#3 PepperJam

PepperJam

    Hot

  • Members
  • PipPipPip
  • 723 posts
  • Location:Sugar Land, Texas, USA

Posted 10 March 2012 - 01:28 AM

I also read that sulphur can help with fungus, maybe its a fungal issue. I have Citrus, Fruit & Nut Orchard Spray Concentrate which contains Sulphur and Pyrethrins. Maybe that should knock it out?

Serenade seems to have both fungul and bacterial killing properties.

"How do prevent this in the future? Add more air flow?"

What kind ofventilation fans do you have now?

I have a ceiling fan that is on 24 hours, and also a powerful fan to strengthen the stems that runs 30 minutes 4 times a day.

How much do you water/feed?

I water maybe every 4-5 days. On every other feeding i give them 7.5ml/gallon liquid karma and 5ml/gallon pro grow

Yes soap should kill it and stop it from spreading. Do not be scared to use it, it will not hurt the plant.

I don't have soap, i have copper fungicide (for bacteria), and a sulpher based spray (for fungus), and serenade.

If you answer those I may be able to see what is going on. I had this happend to me when I was overfeeding and going crazy with fertilizer but it might not be the reason.


Edited by PepperJam, 10 March 2012 - 01:40 AM.

2012 Grow Log: www.thehotpepper.com/topic/27468-pjs-2012-grow-log/

#4 Hammerfall

Hammerfall

    Hot

  • Members
  • PipPipPip
  • 911 posts
  • Location:Rougemont ,Qc

Posted 10 March 2012 - 01:44 AM

it's not a over fert reaction? like leaf burn from too much miracle grow or other fertiliser?
Growlist 2013 :see my glog

#5 PepperJam

PepperJam

    Hot

  • Members
  • PipPipPip
  • 723 posts
  • Location:Sugar Land, Texas, USA

Posted 10 March 2012 - 02:03 AM

i decided to spray them with serenade. Lets see how it goes in a few days. If nothing, i'll try copper, and if nothing, then sulphur :(


it's not a over fert reaction? like leaf burn from too much miracle grow or other fertiliser?


def not ferts, i use very little, and just once every other watering. thanks though.
2012 Grow Log: www.thehotpepper.com/topic/27468-pjs-2012-grow-log/

#6 PepperJam

PepperJam

    Hot

  • Members
  • PipPipPip
  • 723 posts
  • Location:Sugar Land, Texas, USA

Posted 11 March 2012 - 12:23 AM

I cut the infected leaves off. So many leaves, some plants were almost like sticks. Sprinkled some cinnamon powder on them too. Lets see how it goes.
2012 Grow Log: www.thehotpepper.com/topic/27468-pjs-2012-grow-log/

#7 infiniti23

infiniti23

    Mild

  • Members
  • Pip
  • 33 posts
  • Location:Alabama

Posted 11 March 2012 - 07:01 AM

I had this problem last year in the hot, humid Alabama summer. I treated with Espom salts (mixture of sulfur and magnesium). Mix as directed by the package with water, and spray the foliage and base every other day. It does not eliminate the problems on what is already affected, but it did stop it from spreading. After I removed and destroyed the affected foliage, it did not return, until I stopped spraying.

Also, the magnesium in the Epsom salts made my plants greener than I could imagine.

Edited by infiniti23, 11 March 2012 - 07:01 AM.


#8 hooda

hooda

    Heating Up

  • Members
  • PipPip
  • 309 posts
  • Location:San Diego

Posted 11 March 2012 - 12:56 PM

I also read that sulphur can help with fungus, maybe its a fungal issue. I have Citrus, Fruit & Nut Orchard Spray Concentrate which contains Sulphur and Pyrethrins. Maybe that should knock it out?

Serenade seems to have both fungul and bacterial killing properties.

+1

I use Bonide Citrus, Fruit & Nut Orchard Spray also. That stuff works great. I had this same type of spotting on my plants that were outside last year, for the most part I took off any leaves that had the most damage and took them far away from my plants( Trashcan ). Gave them a regular dosing of this stuff on every part of the plant, leaves, stems, and even the top of the soil and the outside of the containers they were planted in. Problem went away for me.
I just have one of those faces. People come up to me and say, "What's wrong?" Nothing. "Well, it takes more energy to frown than it does to smile." Yeah, you know it takes more energy to point that out than it does to leave me alone? - Bill Hicks

#9 PepperJam

PepperJam

    Hot

  • Members
  • PipPipPip
  • 723 posts
  • Location:Sugar Land, Texas, USA

Posted 11 March 2012 - 10:54 PM

I had this problem last year in the hot, humid Alabama summer. I treated with Espom salts (mixture of sulfur and magnesium). Mix as directed by the package with water, and spray the foliage and base every other day. It does not eliminate the problems on what is already affected, but it did stop it from spreading. After I removed and destroyed the affected foliage, it did not return, until I stopped spraying.

Also, the magnesium in the Epsom salts made my plants greener than I could imagine.


Good idea, i'll try it. Sulphur should help too. Thanks

+1

I use Bonide Citrus, Fruit & Nut Orchard Spray also. That stuff works great. I had this same type of spotting on my plants that were outside last year, for the most part I took off any leaves that had the most damage and took them far away from my plants( Trashcan ). Gave them a regular dosing of this stuff on every part of the plant, leaves, stems, and even the top of the soil and the outside of the containers they were planted in. Problem went away for me.


Yea, once they go outside i'll use this. Only downsides is it will keep the friendlies away too. Thanks,
2012 Grow Log: www.thehotpepper.com/topic/27468-pjs-2012-grow-log/

#10 cruzzfish

cruzzfish

    Hot

  • Members
  • PipPipPip
  • 532 posts
  • Location:Connecticut

Posted 10 October 2013 - 08:00 PM

Sorry to necro this thread, but did the treatment actually work? I don't want to start a new thread just to ask the same question. 


Rule 113:Any foods that make you want to die cannot be given to the freshmen.  -List of things that we don't do here at AAE/GHAMAS


#11 impending_bending

impending_bending

    Hot

  • Members
  • PipPipPip
  • 528 posts
  • Location:Arizona

Posted 10 October 2013 - 08:43 PM

Hey cruzzfish,

 

First,

Yes soap should kill it and stop it from spreading. Do not be scared to use it, it will not hurt the plant.

---I must disagree here, DO be afraid to over-do it! I killed several plants this way...

 

Personally, I would use beneficial microbes first. I have had lots of spotting like this and it isn't necessarily disease. Make sure nutrients are good and add microbes (check the compost tea thread) and if you really want to, use some sort of spray but do so conservatively (I'd try it on only some of the plants first though). If you notice it getting worse, then maybe consider more drastic measures.


A bland, timid entry, suitable perhaps for patients recovering from SURGERY!


#12 cruzzfish

cruzzfish

    Hot

  • Members
  • PipPipPip
  • 532 posts
  • Location:Connecticut

Posted 11 October 2013 - 05:10 AM

thread need not be responded to again. last post before mine was year ago. sorry for necroing. Let thread die


Rule 113:Any foods that make you want to die cannot be given to the freshmen.  -List of things that we don't do here at AAE/GHAMAS





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users