Is a moth, attacking only tomato .
The caterpillar penetrates the leaves and eating them from the inside.
The damage can be enormous.
It attacks also the fruits.
It is recommended to use at least 4 kinds of different pesticides,
and alternate between them every 3 days,
in order to overcome pest’s resistance, and completely exterminate them.
For further information about this, read this post , and this post also.
Best pesticides for Tuta absoluta,