Fig. 3. Insect bioassay test for sensitivity of four lectins when present with the artificial diet. (A) Different concentration levels of lectin (10–50 µg mL^–1) were offered to 16 insects and surivivability was monitored after 2 d. (B) Specific activity of different lectins causing mortality to the insects monitored every day for 5 d, when 20 µg mL^–1 of different lectins was mixed with artificial diet.