What is going on with my tomato plants?

[Khalid1]

My plants were doing great with lots of fruits and flowers but suddenly i saw some leaves get infected with some virus or what....
Would somebody help me to identify the problem?
I use Epsom salt for these plants (1.5 TSP in 4 liters each dose after 14 days) and nothing else....

[Izhar]

Though your plants are still healthy but upward curling of leaves show Calcium deficiency...

Wood/Charcoal Ash is a great source of Calcium, Potash and many micronutrients. It is very alkaline, so as to reduce its alkalinity it should be reacted with vinegar water: to make a suspension you need wood or charcoal ash 1 tablespoon, add little water to make as slurry, add two tablespoon common vinegar, leave this solution for 10 mins, add more water (2 litres) to make a suspension, give this whole suspension to your plants every 10 days...

Common vinegar is 5% Acetic acid, 1 tablespoon weighs 15 grams so 2 tablespoon weighs 30 gram, 5% of 30 grams is 1.5 gram or 1500 mg.. 1500 mg/1000 ml water gives 1500 ppm solution 1500 mg/2000 ml water gives 750 ppm solution.. 750 ppm acetic acid dissolves 750 mg of Calcium, Potassium and many other trace elements... this solution should be given on weekly basis in growing and fruiting tomato plants....

1 teaspoon urea in 4 litre water makes about 460 ppm nitrogen solution, this is enough for a healthy growing plant weekly...

[Khalid1]

Thanks you izhar sahab... and what about the black spots?

[Izhar]

Black spots look like Blight to me... cut the leaves with these spots and burn them...

[Khalid1]

Thanks izahar sahab..