Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Tritrophic defenses as a central pivot of low-emission, pest-suppressive farming systems

Kris A. G. Wyckhuys, Wei Zhang, Yelitza C. Colmenárez, Elisabeth Simelton, Bjorn O Sander, Yanhui Lu

Current Opinion in Environmental Sustainability · 2022

Read source ↗ All evidence

Summary

This synthesis paper articulates how ecological forces can be harnessed to strengthen tritrophic defences—plant-mediated pest and disease suppression—as an alternative to pesticide-centred crop protection. The authors present three complementary approaches deployable from seed to landscape scale: habitat-mediated tactics, breeding-dependent strategies, and epigenetic interventions. The paper argues that biodiversity-driven pest management, coupled with soil health restoration and crop diversification guided by plant-soil feedbacks, generates multiple cobenefits for human health, ecological resilience, and climate mitigation.

UK applicability

The tritrophic defence framework is broadly applicable to UK farming contexts, where regulatory pressure to reduce pesticide use and carbon emissions aligns with these ecologically-driven approaches. UK horticulture, arable, and mixed farming systems could adopt habitat-mediated and breeding-dependent tactics; however, specific cultivar recommendations and rotation schemes would require UK-adapted research and extension.

Key measures

Framework for tritrophic defence deployment; ecological infrastructure strategies; crop diversification approaches; soil health metrics; plant immunity priming; carbon footprint reduction; climate resilience indicators

Outcomes reported

The paper synthesises three approaches (habitat-mediated, breeding-dependent, and epigenetic tactics) for deploying tritrophic defences against crop pests, pathogens, and weeds across multiple organisational scales. It demonstrates how biodiversity-driven crop protection can be integrated with soil health, crop diversification, and plant immunity to support climate-resilient food systems.

Theme
Farming systems, soils & land use
Subject
Regenerative & agroecological farming
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Mixed farming
DOI
10.1016/j.cosust.2022.101208
Catalogue ID
SNmoqqrs7c-prjt52

Topic tags

Pulse AI · ask about this record

Dig deeper with Pulse AI.

Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.