<p>Honey bees (<i>Apis mellifera</i> L.) are vital crop pollinators, but their health is increasingly threatened by pesticides, forage loss, and climate-related heat stress. These factors often interact, intensifying colony stress and highlighting the need for mitigation strategies. In this laboratory study, caged worker bees were exposed to elevated temperature (38&#xa0;°C) and residue-level pesticides (acetamiprid, 52.78&#xa0;µg/kg; tebuconazole, 13.88&#xa0;µg/kg) under different diets: sugar candy (control), buckwheat honey, bee bread, vegetable protein, and combinations of honey, vegetable protein, and bee bread. The results revealed a significant overall effect of treatment on mortality. Bees fed buckwheat honey had the lowest mortality, while those on protein–bee bread mixtures had the highest. Treatment strongly influenced consumption: bees fed sugar candy without pesticides consumed the least, whereas those given a mixture of buckwheat honey and bee bread consumed the most. Consumption was positively associated with mortality, though this trend was not statistically significant. Additionally, treatments differed significantly in body weight following stressor exposure. Regression analyses showed no significant effects of consumption, body weight change, or their interaction on mortality, suggesting that other factors drive survival outcomes. The study suggests an absence of synergistic effects from the pesticide mixture on either food consumption or survival. Collectively, these findings highlight the multifaceted effects of treatments, influencing mortality, consumption, and physiological responses in distinct yet overlapping ways. The study also emphasizes the potential of buckwheat honey to improve honey bee survival under combined stressors. It emphasizes potential trade-offs between food quality and survival.</p><p>Clinical trial number Not applicable.</p>