0
points
Disease in tomatoes from India

Tomato    india

I am from india andhrapradesh. In my area lot of farmers farming tomato field,but there are lot of diseases..,please tell whats the proublem,and how can its control....?


Posted by: ramprasad (2 points) ramprasad
Posted: October 9, 2016




Answers
2
points

Necrosis are most likely suffering from a fungus. I think it could be Alternaria solani.
Purple leaves affect other problem.
Best regards,
RG


Posted by: Dr. Raffaele Giurato (6 points) Dr. Raffaele Giurato
Posted: October 10, 2016




1
point
The disease seems to be early blight caused by Alternaria solani which can be prevented at transplanting or controlled by use of copper based fungicides. Try a simple Bordeaux mixture i.e a combination of CuSO4, slaked lime Ca(OH)2 and water in a ratio of 1:1:1.


Posted by: emmanuel Luseno (2 points) emmanuel Luseno
Posted: October 17, 2016




0
points
I support Raffaele - it can be Alternaria sp., and purple color can be caused by phosphorus deficiency.


Posted by: alex ignatov (1 point) alex ignatov
Posted: October 16, 2016




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