0
points
Identifying and troubleshooting cauliflower diseases

Cauliflower    South Georgia

Concerning dicoloration of leaves. Insect's or fungus?
---Update---
Here you go. Just discovered progression of what seems to be a fast spreading. Hope picture helps.


Posted by: TC Holloway (1 point) TC Holloway
Posted: March 21, 2017


Kelsee Baranowski commented,
TC, do you see anything on the underside of the leaves? Or only yellowing on the upper surface? Also, have you noticed any kinds of insect on or around the plant?
over 3 years ago.

TC Holloway commented,
No signs of any eggs or insects. I snapped a better picture. It has progressed even further. I now notice dried out circles that have browned and become crispy.
over 3 years ago.

Kelsee Baranowski commented,
Can you please upload the new picture? The brown circles will be helpful in determining the problem.
over 3 years ago.

TC Holloway commented,
Oh, in new picture. The white stuff is a little dust. Thinking I might be getting invaded. I'm already getting cabbage worms.
over 3 years ago.

TC Holloway commented,
Kelsee, did other picture load? Sorry, I'm new to plant village. Learning thru trial and error.
over 3 years ago.

Kelsee Baranowski commented,
I did get it thank you, however this kind of pattern of brown dried spots are more indicative of sun burn or scorch rather than insect damage. What kind of climate are they in? Very warm with lots of sun? The worms may not be causing this even though present
over 3 years ago.

David Hughes commented,
TC, please frame your questions precisely and do no use abbreviated speak "thru" . It helps to ask a very precise question.
over 3 years ago.

TC Holloway commented,
Doing my best, David Hughes. Thanks, I will be more precise. Any advice will be taken as constructive criticism. I'm here to learn and don't mind being lead to the water hole to drink.
over 3 years ago.



Answers

1
point
It can be caused by frost damage, although more severe symptoms are different https://thomascountyag.com/2015/01/13...


Posted by: alex ignatov (33 points) alex ignatov
Posted: March 26, 2017


TC Holloway commented,
Thank you very much. I do believe this to be possible. This occured around our last frost snap (hoping). However, they bounced back great, with minimal damage. Still got a great waxy coat on leaves. The heads are developing great.
over 3 years ago.



0
points
I did get it thank you, however this kind of pattern of brown dried spots are more indicative of sun burn or scorch rather than insect damage. What kind of climate are they in? Very warm with lots of sun? The worms may not be causing this even though present


Posted by: Kelsee Baranowski (3 points) Kelsee Baranowski
Posted: March 22, 2017


TC Holloway commented,
I'm located deep south Georgia along the Georgia-Florida border. Climate is humid and unpredictable, this time of year. 87 today and just had a freeze warning a week ago. We hit 29 degrees. Hope this helps and thank you for your help in regards to my concern. Do you think it will snap back? I did mix a little fish emulsion and fed them. Just starting to get cauliflower heads.
over 3 years ago.

alex ignatov commented,
It can be caused by frost damage, although more severe symptoms are different https://thomascountyag.com/2015/01/13...
over 3 years ago.

David Hughes commented,
I think the shifts between cold and hot likely explain this problem. As you enter more stable temperatures you can expect to see this condition disappear. When there is a cold snap the ability to sequester nutrients from the soil is limited. You might consider to take daily photos to track the change in color and see if it goes. Lets us know please.
over 3 years ago.



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