Black dirt-looking substance on leaves

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MDLady43 Joined: 7/18/2007 Location: Maryland Posts: 126	Posted: Sep/15/2009 8:44 PM PST Hello, I am growing collards and the leaves have a black, dirt-like substance on them. I have never seen this before. I also have a major problem with whiteflies. I have used 2 types of over-the-counter sprays, but if I am lucky, the whiteflies stay away for MAYBE 2 days. I previously had a problem with blight and it almost killed my tomatoes. They are coming back now. I am growing yellow crook neck squash and although the friut is producing nicely, I have powdery mildew on the leaves. I am breaking off the bad leaves and the plant continues to grow. I am growing 3 types of peppers and they have been unaffected by any disease. It is not dirt that has been washed on the collard leaves. What can it be?? Does anybody have a recipe for getting rid of these pesky whiteflies? I literally have to spray myself with OFF! before I go in the garden or they will eat me alive!!! Attachments: Quote \| Reply \| Report

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Message

MDLady43

Joined: 7/18/2007
Location: Maryland
Posts: 126

Posted: Sep/15/2009 8:44 PM PST

Hello,

I am growing collards and the leaves have a black, dirt-like substance on them. I have never seen this before. I also have a major problem with whiteflies. I have used 2 types of over-the-counter sprays, but if I am lucky, the whiteflies stay away for MAYBE 2 days.

I previously had a problem with blight and it almost killed my tomatoes. They are coming back now. I am growing yellow crook neck squash and although the friut is producing nicely, I have powdery mildew on the leaves. I am breaking off the bad leaves and the plant continues to grow. I am growing 3 types of peppers and they have been unaffected by any disease.

It is not dirt that has been washed on the collard leaves. What can it be?? Does anybody have a recipe for getting rid of these pesky whiteflies? I literally have to spray myself with OFF! before I go in the garden or they will eat me alive!!!

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Quote | Reply | Report

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