Journal article

REMARKS ON THE ASYMPTOTIC-BEHAVIOR AND THE THRESHOLD THEOREM IN MODELS OF PLANT-DISEASE EPIDEMICS


Authors listHAU, B

Publication year1988

Pages372-376

JournalZeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection

Volume number95

Issue number4

ISSN0340-8159

PublisherUlmer


Abstract
The asymptotic behaviour of the delay-differential equation which VANDERPLANK (1963) proposed for the description of epidemics was investigated using the formulae of VANDERPLANK (1984) and JEGER (1986). The calculation according to VANDERPLANK yields more meaningful results and leads to a new interpretation of the threshold theorem for epidemics (iR > 1). Accordingly, the threshold theorem does not mean that the disease cannot increase if iR .ltoreq. 1, which is explained using an example for the control of a disease by a fungicide.



Citation Styles

Harvard Citation styleHAU, B. (1988) REMARKS ON THE ASYMPTOTIC-BEHAVIOR AND THE THRESHOLD THEOREM IN MODELS OF PLANT-DISEASE EPIDEMICS, Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection, 95(4), pp. 372-376

APA Citation styleHAU, B. (1988). REMARKS ON THE ASYMPTOTIC-BEHAVIOR AND THE THRESHOLD THEOREM IN MODELS OF PLANT-DISEASE EPIDEMICS. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection. 95(4), 372-376.


Last updated on 2025-02-04 at 05:03