Dr. Louis Guillette was a pioneer in this field. He worked on reptiles, not insects, but getting to know his work in reproductive endocrinology is crucial. https://endocrinenews.endocrine.org/remembering-edc-research-pioneer-louis-j-guillette-jr/
Effects of pollination span across ecosystems via trophic cascades. For example, fish preying on aquatic odonate larvae ultimately impact the number of adult odonate feeding on bee pollinators. I think a really interesting study would be to incorporate the effects of pesticides across aquatic and terrestrial ecosystems.