One of the farmers at the Lamingo area of Jos, Marcel Ndubuisi, said he spent most part of last year battling with the pests on his farm.
He also said the activities of middlemen and the high cost of fertilizer was making the business very challenging.
He urged government to intervene and support them in tackling their challenges.
The woman leader in the tomato market at the Cele-bridge area of Jos, Ruth Izang, said the pest invasion had seriously affected the quality of tomatoes harvested.
She said whenever the pest attacked the crop it became easily perishable.
She added that the farmers always struggle to purchase the chemicals to control the pests for their farms.