Fig. 4 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles

Fig. 4. Response of Aphis citricola adults to French marigold (Tagetes patula) (A) and catnip (Nepeta cataria) (B). T: Apple trees + aromatic plants; CK: apple trees only. The numbers of asterisks represent the level of significance: ** highly significant (P <0.01); * significant difference (P <0.05).