Help needed identifying disease

gryffin · July 1, 2011

When I was inspecting my plants last night, I noticed a yellow/green mottled new leaf. Further inspection showed a leaf with one large and several small spots. Am I dealing with septoria leaf spot? Should I pull the plant?

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gryffin · July 1, 2011

Here's one more pic:

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RayR · July 1, 2011

Hard to tell from the picture, it may be early signs of Septoria or even Early Blight, but why would you pull a plant for Septoria or Early Blight anyway? Both are controllable with fungicides. Septoria and Early Blight usually starts at oldest leaves first and works its way up during the season

lurley · July 1, 2011

Remove and destroy the diseased leaves and then spray with fungicide.

gryffin · July 1, 2011

The plant is in a community garden in which I am restricted to organic controls. I have Serenade though, so I'll give that a shot.

lurley · July 2, 2011

Liquid copper might help and so might a sodium bicarbonate product, I believe both are ok'd for organic production. One brand that is organic is garden safe and I think bonine makes some products you could try also.

July 1, 2011	#1
gryffin Tomatovillian™ Join Date: Jun 2010 Location: New Hampshire Posts: 229	Help needed identifying disease When I was inspecting my plants last night, I noticed a yellow/green mottled new leaf. Further inspection showed a leaf with one large and several small spots. Am I dealing with septoria leaf spot? Should I pull the plant? ImageUploadedByTapatalk1309518057.007458.jpg ImageUploadedByTapatalk1309518100.351768.jpg

July 1, 2011	#3
RayR Tomatovillian™ Join Date: Jun 2010 Location: Cheektowaga, NY Posts: 2,466	Hard to tell from the picture, it may be early signs of Septoria or even Early Blight, but why would you pull a plant for Septoria or Early Blight anyway? Both are controllable with fungicides. Septoria and Early Blight usually starts at oldest leaves first and works its way up during the season

July 1, 2011	#4
lurley Tomatovillian™ Join Date: Jan 2011 Location: Central Ohio Posts: 741	Remove and destroy the diseased leaves and then spray with fungicide.

July 2, 2011	#6
lurley Tomatovillian™ Join Date: Jan 2011 Location: Central Ohio Posts: 741	Liquid copper might help and so might a sodium bicarbonate product, I believe both are ok'd for organic production. One brand that is organic is garden safe and I think bonine makes some products you could try also.