Is this gray mold?

luigiwu · July 12, 2015

I think gray mold might be hitting my garden again.

Had it last year.

There was one plant that had a range of leaves from dried crunchy to leaves with what looked like light gray mold patches.

or is this one something else?

ginger2778 · July 12, 2015

Whatever it is, it's fungal. Better go into antifungal spray mode very quickly. I like Souther Ag liquid copper, mixed at 1/2 of weakest strength. That is strong stuff, half strength is more than enough to do the job, and stronger can stunt my plants growth for about 3 weeks.

AlittleSalt · July 12, 2015

Luigiwu, that happens to our gardens in July. Grey Mold looks just like your pictures. Marsha has already replied how to try to control it.

The same thing is just starting to happen to the Gialle squash we have planted. There are 3 huge squash for seeds

luigiwu · July 12, 2015

Quote:

Originally Posted by ginger2778

Whatever it is, it's fungal. Better go into antifungal spray mode very quickly. I like Souther Ag liquid copper, mixed at 1/2 of weakest strength. That is strong stuff, half strength is more than enough to do the job, and stronger can stunt my plants growth for about 3 weeks.

I'm reading the Amazon listing and it says for tomatoes 2oz in 2 gallons of water. So it sounds like you are doing 1oz for 2 gallons?

Have you every tried Greencure or Potassium Bicarbonate?

I have some 2yr old Serenade and I wonder if its still any good....

ginger2778 · July 12, 2015

Quote:

Originally Posted by luigiwu

I'm reading the Amazon listing and it says for tomatoes 2oz in 2 gallons of water. So it sounds like you are doing 1oz for 2 gallons?

Have you every tried Greencure or Potassium Bicarbonate?

I have some 2yr old Serenade and I wonder if its still any good....

I do 1/2 Tablespoon per gallon of water. The label instructions on my bottle say the weakest is 1 Tablespoon per gallon. Bonide and some other brands are a much weaker formulation than Southern Ag. I buy it at Home Depot, very inexpensive.
I think the conversion is 2 Tablespoons = 1 ounce, so I am using 1/4 of an ounce per gallon., 1/2 ounce per 2 gallons. IT IS STRONG ENOUGH!
Never tried Green Cure or Pot.carb., or serenade.

b54red · July 12, 2015

Serenade never worked for me on Gray Mold and copper usually only slows it down but is pretty good at preventing it. The bleach spray works fast and is also effective on molds and mildews on squash. After using the bleach spray a follow up with copper and removing all the bad leaves is essential. You also may need to repeat the process if it returns and if it is raining a lot use the bleach spray between rains to slow it down then again when the rains let up to finish it off.

http://tomatoville.com/showthread.ph...t=bleach+spray

Bill

July 12, 2015	#1
luigiwu Tomatovillian™ Join Date: Jun 2013 Location: ny Posts: 1,219	Is this gray mold? I think gray mold might be hitting my garden again. Had it last year. There was one plant that had a range of leaves from dried crunchy to leaves with what looked like light gray mold patches. or is this one something else? __________________ Subirrigated Container gardening (RGGS) in NY, Zone 7! Last edited by luigiwu; July 12, 2015 at 09:19 AM.

July 12, 2015	#2
ginger2778 Tomatovillian™ Join Date: Aug 2011 Location: Plantation, Florida zone 10 Posts: 9,283	Whatever it is, it's fungal. Better go into antifungal spray mode very quickly. I like Souther Ag liquid copper, mixed at 1/2 of weakest strength. That is strong stuff, half strength is more than enough to do the job, and stronger can stunt my plants growth for about 3 weeks.

July 12, 2015	#3
AlittleSalt BANNED FOR LIFE Join Date: May 2014 Posts: 13,333	Luigiwu, that happens to our gardens in July. Grey Mold looks just like your pictures. Marsha has already replied how to try to control it. The same thing is just starting to happen to the Gialle squash we have planted. There are 3 huge squash for seeds

July 12, 2015	#6
b54red Tomatovillian™ Join Date: Sep 2009 Location: Alabama Posts: 7,068	Serenade never worked for me on Gray Mold and copper usually only slows it down but is pretty good at preventing it. The bleach spray works fast and is also effective on molds and mildews on squash. After using the bleach spray a follow up with copper and removing all the bad leaves is essential. You also may need to repeat the process if it returns and if it is raining a lot use the bleach spray between rains to slow it down then again when the rains let up to finish it off. http://tomatoville.com/showthread.ph...t=bleach+spray Bill