Paul Chisholm

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Questions related from Paul Chisholm

Are there any real-world examples of a resistant biological agent becoming susceptible again?

Biological agents (viruses, insects, bacteria, etc) can become resistant to countermeasures (engineered host resistance, drugs, pesticides, etc), but the resistance often comes with a cost. In the...

05 May 2018 7,170 6 View

Can I accurately measure phytohormone levels in plants using headspace analysis?

I wish to measure phytohormone regulation in plants (chiefly MeSA and MeJA) before and after attack from a variety of pests (insects, viruses, etc). Is there a way to do this non-destructively,...

04 April 2014 9,159 3 View

Does anyone know of an insecticide (either chemical or biological) that would selectively kill beetles but not aphids?

I am doing a community study in peas and would like to eliminate a key pest species (the pea leaf weevil, Sitona lineatus) without influencing immigration and settlement of the pea aphid,...

01 January 2014 1,112 32 View