Fig. 3
From: Bio-economics of Indian hybrid Bt cotton and farmer suicides
Major herbivores a attacking cotton in North America modeled using PBDMs. Absent herbivory, vegetative growth ceases at the control point (i.e. S/D ~ 1 in subfigures b and c), but changes with different kinds and rates of herbivory. Specifically, b shows the effects of supply-side herbivores on the control point, and c the effects of demand side herbivores [11, 18]. Pink bollworm attacks the standing crop of fruit and does not appreciably alter the control point [21]