HIPV-mediated indirect defences following larval feeding
are well known in maize (e.g. [13
,24,25]). HIPV
emission after oviposition of the stemborer C. partellus
was recently discovered in certain maize landraces [26,27]
but not in the commercial hybrids we examined initially.
In the last two years, we screened for egg induced HIPV
emission in a much wider range of maize germplasm
(25 landraces, 30 hybrids and 22 inbred lines;
Figure