For repellency (Push) either specific SLMs or mixtures characteristic of plants unsuitable as hosts could be utilised. These could comprise SLMs specific to non-host taxa for example the monoterpenoid (1R,5S)-myrtenal which is typical of plants in the Lamiaceae that are non-hosts for
the black bean aphid, Aphis fabae, and which is repellent even in the presence of the host