Mathematical simulation model of the velvetbean caterpillar. I. Description of the model

Abstract

A mathematical simulation model was developed for the velvetbean caterpillar (Anticarsia gemmatalis Hübner, 1818), main Brazilian defoliator pest of soybeans, in order to consolidate existing information and also to verify research needs. Available information presented in Brazilian or international literature, plus data recorded in reports of Embrapa were used. Seven sub-models were developed to comprise the major simulation model considering the insect, the soybean plant, migration of moths, insecticide application, predation and parasitism, entomopathogens and environment. Working hypotheses, equations generated and developed, parameters and fundamentals of the mechanisms for study are presented. Although without validation, the results furnished by the model are considered normal when compared with observed field populations of the insect.