We often talk about crop/yield losses due to pests, but it would be useful to find some information where such losses are quantified/estimated in monetary terms.
Hi Jay Ram, unfortunately I do not know such a database but I would be very interested if you find one...for sure it would be very useful !
I used:
http://ephytia.inra.fr/index.php
http://www.rsyst.inra.fr/
http://nt.ars-grin.gov/fungaldatabases/
But mainly to determine which species are pathogenic...not much information about yield losses...
Good luck!
Estimates have been made of 'attainable production' and 'production without protection' for a range of crops and the assumption that these could either be fully protected or not protected at all. The difference between the two then meaures the full extent of 'potential loss'. Actal production is also know (which always fall between the two limits as expected).
Prof Oerke at the University of Bonn in Germany has been doing this work for decades. For recent estimates see the book: Crop Production and Crop Protection: Estimated Losses in Major Food and Cash Crops by E.-C. Oerke, H.-W. Dehne, F. Schönbeck, A. Weber, Publisher Elsevier, 2012, 829 page; ISBN 0444597948, 9780444597946.
See also related work for example www.nrel.colostate.edu/ftp/conant/SLM-proprietary/Oerke_2006.pdf
It has to be borne in mind that the level of potential loss rates (and any measure of effectiveness of crop protection that stems from it) could be misleading. It does have a economic equivalent meaured as the physical output that is saved, but the important issue is whether that saving is worth achieving given the labour, expenditures for crop protection and other costs of the application.
The goal of crop protection is to prevent economic loss (not potential loss). If the anticipated physical yield is low for instance because it is limited by abiotic factAdd your answerors such as shortage of water it might be uneconomical to apply crop protection. There is an economic optimum between the intensity of crop protection and the remaining crop loss. Therefore the economics of crop loss protection in different production systems cannot be concluded from the actual loss rates. See e.g. Wossink & Rossing (1998) Journal of Environmental Management.
Article On increasing returns and discrete choice: Integrating produ...
I think such data and statistics could be found in different ministries of agriculture in different countries. You may find some information in the international organization such as FAO (see links below)
http://faostat.fao.org/site/339/default.aspx
http://www.fao.org/foodchain/fcc-home/fcc-news-events/detail/en/c/132060/
As well as The National Agricultural Statistics Service, USA
http://www.nass.usda.gov/index.asp
An interesting article on Modeling Yield Losses Due to Pests is in the link below
http://www.apsnet.org/edcenter/advanced/topics/BotanicalEpidemiology/Pages/ModelingYieldLossesDuetoPests.aspx
Also the Independent Evaluation Group (IEG) of the World Bank Group has different reports in the link below.
https://ieg.worldbankgroup.org/topic/agriculture-and-agribusiness?gclid=CITKpont8cECFanMtAodBSMAow
Moreover the American Phytopathological Society published in their website an article about the Future of World Food Situation and the Role of Plant Diseases, which may also be useful. http://www.apsnet.org/publications/apsnetfeatures/Pages/WorldFoodsituation.aspx
http://faostat.fao.org/site/339/default.aspx
http://www.fao.org/foodchain/fcc-home/fcc-news-events/detail/en/c/132060/
http://www.nass.usda.gov/index.asp
http://www.apsnet.org/edcenter/advanced/topics/BotanicalEpidemiology/Pages/ModelingYieldLossesDuetoPests.aspx
https://ieg.worldbankgroup.org/topic/agriculture-and-agribusiness?gclid=CITKpont8cECFanMtAodBSMAow
http://www.apsnet.org/publications/apsnetfeatures/Pages/WorldFoodsituation.aspx
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