Fig. 4.
Visual response of locusts to exposure to violet light for different lengths of time and at different intensities (a),100lx; (b),1000 lx; and (c), 2000 lx.
Visual response of locusts to exposure to violet light for different lengths of time and at different intensities (a),100lx; (b),1000 lx; and (c), 2000 lx.