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The global burden of pathogens and pests on major food crops

2019· article· en· 3,959 citations· W2913500366 on OpenAlex· 10.1038/s41559-018-0793-y

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Abstract

Crop pathogens and pests reduce the yield and quality of agricultural production. They cause substantial economic losses and reduce food security at household, national and global levels. Quantitative, standardized information on crop losses is difficult to compile and compare across crops, agroecosystems and regions. Here, we report on an expert-based assessment of crop health, and provide numerical estimates of yield losses on an individual pathogen and pest basis for five major crops globally and in food security hotspots. Our results document losses associated with 137 pathogens and pests associated with wheat, rice, maize, potato and soybean worldwide. Our yield loss (range) estimates at a global level and per hotspot for wheat (21.5% (10.1-28.1%)), rice (30.0% (24.6-40.9%)), maize (22.5% (19.5-41.1%)), potato (17.2% (8.1-21.0%)) and soybean (21.4% (11.0-32.4%)) suggest that the highest losses are associated with food-deficit regions with fast-growing populations, and frequently with emerging or re-emerging pests and diseases. Our assessment highlights differences in impacts among crop pathogens and pests and among food security hotspots. This analysis contributes critical information to prioritize crop health management to improve the sustainability of agroecosystems in delivering services to societies.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

The record

Venue
Nature Ecology & Evolution
Topic
Climate change impacts on agriculture
Field
Agricultural and Biological Sciences
Canadian institutions
Funders
National Institute of Food and AgricultureInstitute of Population and Public HealthU.S. Department of Agriculture
Keywords
Food securityAgricultureCropAgroecosystemCrop yieldCrop protectionBiologyAgroforestrySustainabilityAgronomyPEST analysisBiotechnologyEcology
Has abstract in OpenAlex
yes