Question
Our Sunflowers have a black deposit at the base of the leaf stem where it meets the stalk. What is it. What can we do about it? Or do these plants need to be pulled?
Thank You Angi

Answer
Hi Angi

Can you send some pictures.  Many things can do what you describe.  You can send several pictures to [email protected] with the subject line of allexperts, so it wont get deleted.  I will take a look and repsond back with hopefully a good answer.  Awaiting your pictures.  Thanks.