It’s no secret that many insects love cannabis, but research shows that four main pests do the majority of damage to outdoor cultivation.

According to Whitney Cranshaw, an entomology professor and extension specialist at Colorado State University, researchers identified 150 genera of arthropods – insects, mites and spiders – in hemp fields during field sampling during the 2016, 2017 and 2018 growing seasons in Colorado.

The overwhelming majority of those insects were not directly damaging those crops, Cranshaw said during an Advancing Hemp online event in May.

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