According to a meta-analysis of 58 published studies, spiders suppressed agricultural pest insects in 79 per cent of studies, which resulted in improved crop performance.

Comment: Lessons learned from spider guts

Spider stomach contents can sharpen our understanding of their role in agricultural pest control

Spiders are important insect predators, and understanding what’s in their gut could help agriculture deploy them against pests. That’s easier said than done. Spider diet, and how much they actually target crop pest species, is crucial to determine how effective spiders are at biocontrol. However, since spiders liquefy the remains of prey with digestive enzymes,