Optimal mixtures against CBSD for diverse setups.

The table presents: (i) the reference yield of SUSC grown alone, (ii) the optimal mixture of SUSC with RES and its yield, (iii) the optimal mixture of SUSC with TOL and its yield, and (iv) the optimal mixture of SUSC with DEC and its yield. The latter three optimal mixtures may be monocultures. When the optimal mixture consists solely of SUSC, as in the case of mixing with DEC, an additional row is unnecessary. (a) The yields are calculated for and are lower for . The optimal mixture proportions may vary with reduced values of the roguing rate ρ until they stabilize to the same profile as when there is no roguing. (b) The yields are calculated for and are higher for than for . For higher values of the roguing rate ρ, the best-yielding order remains unchanged: the SUSC monoculture remains optimal under low and medium insect burdens, while the SUSC–RES mixture remains optimal under high insect burden. In the latter case, the proportion of SUSC in the mixture increases with the roguing rate, reaching 100% as ρ approaches 1 (roguing every day). More generally, increasing the frequency of roguing increases the share of SUSC in mixtures Fig 6.