A computer‐based advisory system for cereal aphids‐field‐testing the model

SUMMARY A previously developed computer‐based interactive model which can aid farmers in the control of summer aphids on winter wheat was tested in field trials carried out from 1985 to 1988. These trials showed that the model performed very well when compared with other popular types of advice available. Economic comparison of the model with current and previous ADAS advice showed that the model performed as well or better. It also had the advantage that it used the economics of the situation, as well as the size of the pest population, in calculating advice.