I spray my tomatoe plants with poision and the tops of the tomatoe plants are wilting up..and dieing is there any way i can save my tomato plants?

I spray my tomatoe plants with poision and the tops of the tomatoe plants are wilting up..and dieing is there any way i can save my tomato plants?
i am making a compost pile at home that include leaves, twigs all sorts of vegetable peels and some times even spoiled over non veg food items ,i want to grow my tomatoes using this and no chemical fertilizer.. will this work? and will the yield be satisfactory…now it is winter over here and in [...]
I started growing tomatoes for the first time this year. I have both plum and big boy tomatoes. The plums are ripening, but I notice that there is a hole (like it is rotted out) on the bottom of the ripening plum tomatoes. What can I do to prevent this from happening to all my [...]