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# Cassava pests and crop traits varied across Sierra Leone's regions
- URL: https://intelligence.wildlandseco.com/2026-10-21-sierra-leone-cassava-pests-regional-survey/
- Published: 2026-10-21T14:11:17.000Z
- Updated: 2026-10-21T14:11:17.000Z
- Description: Farm visits expose disease, planting-material and agroecological heterogeneity.
- Author: Benjamin Worlund
- Tags: Sierra Leone, cassava, whitefly, mosaic disease, Land, One Health, #ecological-intelligence, #brief-2026-10-21, #global-radar, #peer-reviewed, #geo-africa

Evidence

Peer-reviewed

Geography

Sierra Leone, five regions

System

Smallholder crop disease ecology

## WHAT THE EVIDENCE SAYS

A January 2022 survey measured morphology, pests and cassava mosaic symptoms on 276 farms, sampling 30 plants per farm. Whitefly and grasshopper counts varied geographically, and disease-severity patterns differed by farm size.

## WHY IT MATTERS / OUR READ

Local planting-material networks and landscape context matter more than assuming a nationally uniform pest or cultivar profile.

## CAVEATS / UNCERTAINTY

Single seasonal snapshot; symptoms and farm associations cannot prove infection routes or a protective leaf trait.

## SOURCE

Discover Agriculture — Amara et al. (2026)  
[View original evidence ↗](https://doi.org/10.1007/s44279-026-00798-8?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-10-21

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-10-21/)