Drastic change in Black Oil Sunflower. Is it dying?
Sunflower None Given
Hi, newbie here. I have a volunteer Black Oil Sunflower that was doing great with lots of blooms for the first time ever. They usually get eaten but this year I tried my version of a scarecrow and it took off. It looked fine but over the last few days it's gotten worse. Now it looks like this. The oldest top bloom has something white & fuzzy on the back of the head in one spot. I have about a dozen more babies going strong but I need to know what I did wrong with this one! I have searched pests and diseases but am not positive; I don't want to use any pesticides if that is not the problem. Any help would be greatly appreciated!
Thanks in advance.
Thanks in advance.
back of the oldest head
bug
wilting
bug again
whole plant
Posted
by: Laurel Fee
(2 points)
Posted: May 16, 2016
Answers
Hi,
Do you see other symptoms on the stalk? any discoloration and or white fuzzy growth? If so it might be a fungal diseases caused by the fungus sclerotinia. Let me know If you see these symptoms
Do you see other symptoms on the stalk? any discoloration and or white fuzzy growth? If so it might be a fungal diseases caused by the fungus sclerotinia. Let me know If you see these symptoms
Posted
by: kaoutar el mounadi
(2 points)
Posted: May 16, 2016
Laurel Fee commented,
Thank you so much for taking the time to talk to me. It might be fungus; some fuzzy white spots where stalk meets stem. The stalk doesn't have any discolorations but the leaves are getting brown spots on them. Found a bunch of small black ants on it and a bug just now that I can't identify. will post photo. almost 8 years ago.
Thank you so much for taking the time to talk to me. It might be fungus; some fuzzy white spots where stalk meets stem. The stalk doesn't have any discolorations but the leaves are getting brown spots on them. Found a bunch of small black ants on it and a bug just now that I can't identify. will post photo. almost 8 years ago.
The insect is a leaf footed bug http://bugguide.net/node/view/93/bgpage
They do feed on plant sap and the feeding may have caused this the drooping. Check out the white area- does it feel waxy in your finger? Are the ants going to it? Do you see any little insects in their (white and waxy)
They do feed on plant sap and the feeding may have caused this the drooping. Check out the white area- does it feel waxy in your finger? Are the ants going to it? Do you see any little insects in their (white and waxy)
Posted
by: David Hughes
(67 points)
Posted: May 16, 2016
Laurel Fee commented,
sorry for the delay in responding; have been sick. The white areas I saw have turned out to be the beginning of a new flower. I got rid of the bug and the plant seems to be doing well now. Since it is my first one it is turning out to be a great teacher! Thank you so much for all your help. almost 8 years ago.
sorry for the delay in responding; have been sick. The white areas I saw have turned out to be the beginning of a new flower. I got rid of the bug and the plant seems to be doing well now. Since it is my first one it is turning out to be a great teacher! Thank you so much for all your help. almost 8 years ago.
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