Do aphids biomagnify Cd and Zn as a defence against predation?

This source preferred by Iain Green and Anita Diaz

Authors: Green, I.D., Tibbett, M. and Diaz, A.

Start date: 5 September 2005

The results of a study on sewage sludge application to agricultural soil have led us to propose that recycling sewage sludge can affect the biological control of grain aphids. This, we suggest, is due to the biomagnification of trace metals in the aphid presenting potentially toxic concentrations to predators.

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