The present invention relates to a tomato plant having improved insect resistance, more specifically whitefly or mite resistance, wherein the plant comprises a SlAT2 gene encoding for an acetyl-CoA-dependent acyltransferase enzyme and an AP2e gene encoding for a APETALA2 ethylene-responsive transcription factor. The present invention further relates to methods for providing a tomato plant having improved insect resistance and the use of a SlAT2 gene in combination with an AP2e gene for providing insect resistant tomato plants.