Figure 10

The average number of susceptible cassava at \(\pmb{25^{\circ}\mbox{C}}\) , \(\pmb{27^{\circ}\mbox{C}}\) and \(\pmb{30^{\circ}\mbox{C}}\) . (a) No biological control is applied, (b) larva green lacewings are released in the cassava field, (c) adult green lacewings are released in the cassava field.