Figure 1. Biplots for the two aphid morphs: apterous (Apt) and alate (Wing), Scymnus rubicundus (Sc), Toxomerus watsoni (To), Chrysoperla externa (Ce), Cycloneda sanguinea (Cs) and Lysiphlebus testaceipes (Lt) on cotton grown at the 0.40 m row spacing.

The dots represent the assessment time (days after plant germination), whereas the arrows represent the vector for each variable.