Pollinators are essential for ecosystem functioning and agricultural productivity, yet they face increasing threats from climate change and agrochemical exposure.This study aims to explore the interactive effects of elevated temperatures and the pesticide,cyantraniliprole on bumble bees’ (Bombus impatiens) ability to buzz pollinate and collect pollen, and how this impacts fruit quality in the buzz-pollinated crop, tomatoes.In controlled laboratory and greenhouse settings, bumble bee microcolonies will beexposed to either combined heat and pesticide stressors, individual stressors, or no stressor control.We will assess buzz pollination by measuring peak buzz frequency and amplitude while bees forage on tomato plants, and afterwards collect their pollen loads. We will assess tomato quality by measuring fruit set, weight, and seeds per fruit.It is hypothesized that both stressors, combined and individually, will reduce buzz pollination performance, pollen load, and tomato quality.We anticipate results willshow a significant negative interaction between heat and cyantraniliprole on bumble bees’ foraging behavior.This research will advance our understanding of how anthropogenic stressors are affecting bees within agricultural systems and will inform conservation strategies and sustainable practices on working lands.