Goodmorning people, pls ur suggestions is welcome. My tomato are 2mths old fruiting already but i noticed that they withering off having a kind of yellow stained with black color. Sm1 advise that i shld stake them. What can i do to save them.

Based on experience your tomato is receiving water on its leaves. Tomato leaves doesn't like water because it stunt its growth the root requires water most and you are meant to start staking now for better result.

Staking might be a bit too late cause it will distrupt the flowers and the stem.
The tomato plants are tender

If you can, please attach photos of a plant or plants showing the symptoms that you described. Thanks