Determining the prevalence of certain cereal crop diseases by means of aerial photography

Robert N. Colwell

Hilgardia, 1956, vol. 26, issue 5

Abstract: In some instances the photo interpreter, using only smallscale, black-and-white photographs, can detect disease infection centers early enough to permit effective control measures. Frequently, using large-scale, color photographs, he can also estimate disease severity and subsequent yield reduction quite accurately.

Keywords: Environmental; Economics; and; Policy (search for similar items in EconPapers)
Date: 1956
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/381798/files/v26n05p223.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:hilgar:381798

Access Statistics for this article

More articles in Hilgardia from California Agricultural Experiment Station
Bibliographic data for series maintained by AgEcon Search ().