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On the Timing and Application of Pesticides
Author(s) -
Hall Darwin C.,
Norgaard Richard B.
Publication year - 1973
Publication title -
american journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.949
H-Index - 111
eISSN - 1467-8276
pISSN - 0002-9092
DOI - 10.2307/1238437
Subject(s) - pesticide , economic threshold , variable (mathematics) , pest analysis , population , computer science , mathematics , business , biology , ecology , demography , sociology , mathematical analysis , marketing
The model developed by J. C. Headley to illustrate the entomologists' concept of the economic threshold is presented and criticized. A two‐variable model directed at the problems of optimal timing and pesticide application as well as optimal pest population level is presented.