Fig. 6.

Percentage of western flower thrips settled on the control chrysanthemum leaf disk in dual choice assays of leaf disks containing 0.2 % Tween with or without 0.01 %, 0.1 %, or 1 % pyrethrins. The solutions were infiltrated into chrysanthemum leaves. The choices were recorded 0.25, 1, 2, 4, 20, and 28 h after WFT release. The x-axis represents ¹⁰log-transformed time data. Asterisks indicate significant differences to the control (*: P < 0.05; **: P < 0.01). C, control. Pyr, pyrethrins. Error bars indicate SE (N = 120 per treatment)