Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Herbivore-herbivore interactions complicate links between soil fertility and pest resistance

Carmen K. Blubaugh, Lynne Carpenter‐Boggs, John P. Reganold, William E. Snyder

Basic and Applied Ecology · 2021

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Summary

This field-based study explores the non-linear relationship between soil fertility and crop pest resistance, demonstrating that herbivore–herbivore interactions complicate conventional understanding of this link. The authors argue that soil fertility does not operate as a simple predictor of pest resistance when multiple herbivore species are present and interact ecologically. The work highlights the need for systems-level thinking in integrated pest management and soil health strategies.

UK applicability

The ecological principles identified—particularly the role of multi-species herbivore dynamics in modulating soil-fertility–pest-resistance relationships—are likely transferable to UK arable and mixed farming systems. However, specific pest species and soil conditions in UK temperate cropping systems may yield different interaction patterns; validation under UK conditions would strengthen applicability to UK farm management practice.

Key measures

Herbivore abundance and diversity, crop damage or pest pressure metrics, soil fertility indicators (as suggested by title), herbivore–herbivore interaction strengths

Outcomes reported

The study examined how soil fertility influences pest resistance in crops, and how herbivore–herbivore interactions (competition, facilitation, or apparent competition among pest species) modulate these relationships. The research suggests that simple linear models linking soil fertility to pest susceptibility may be obscured by complex multi-herbivore dynamics.

Theme
Farming systems, soils & land use
Subject
Arable cropping systems
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Mixed farming
DOI
10.1016/j.baae.2021.02.002
Catalogue ID
BFmovi20nx-njpczo

Topic tags

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