Resistance of Lycopersicon accessions, breeding lines and cultivars to the tomato pinworm, Keiferia lycopersicella (Walsingham), and the vegetable leafminer, Liriomyza sativae Blanchard, was evaluated in 5 field studies. PI 126445 and PI 127826 (L. hirsutum Humb. & Bonpl.) and PI 126449 (L. hirsutum f. glabratum Mull.) demonstrated the highest level of resistance to both insects as measured by the number of L. sativae mines and damage and larvae of K. lycopersicella. Levels of resistance to either insect in L. esculentum Mill, accessions studied appeared intermediate. PI 129230 and PI 140403 (L. esculentum) were moderately resistant to both insects in at least two tests.