"Jeg vil gerne snakke med dig om priserne på frugt."
Translation:I would like to talk with you about the prices of fruit.
It is a bit strange. If it were me, as a greengrocer, i would say, "i want to talk to you about the fruit prices."
"The prices of fruit" sounds correct to me. To me, it would seem that it is the general prices of fruit in general, not about the price of a specific piece of fruit, though.