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Selecting biological control agents

Predicting direct non-target impacts

Modelling non-target impacts

Interactive model for predicting host impact from natural enemy attack rate

This tool allows the relationship between attack rate and population impact to be explored interactively.

Note that these models assume discrete host generations.

Reference: Barlow et al. (2004)

Life cycle:
Estimated host rate of increase: (0 to 3)
Estimated attack rate: (0 to 1)
This is the proportion of hosts attacked per generation


Barlow N.D., Barratt B.I.P., Ferguson C.M. and Barron M.C. (2004). Using models to estimate parasitoid impacts on non-target host abundance. Environmental Entomology 33: 941-948.