By Halliwell
North Yorkshire,
United Kingdom 
My friend who lives near Scarborough says that the edges of the leaves on her tomato plants are turning white from the bottom of the stems. Does anyone know why this is happening please.
Thanks
21 May, 2017
Answers
Many thanks I will pass that on to her
22 May, 2017
It sounds horribly like one of the wilt diseases--Verticillium or Fusarium.
22 May, 2017