Figure 2

Differential responses of Meloidogyne incognita to individual synthetic compounds identified in pepper root volatiles. Response of Meloidogyne incognita infective juveniles (J2s) to different doses of (A) α-pinene compared to a control (moist sand). (B) Limonene compared to a control (C) 2-methoxy-3-(1-methylpropyl)pyrazine compared to a control (D) methyl salicylate compared to a control (E) tridecane compared to a control (F) thymol compared to a control. N corresponds to the total number of responding J2 while n is the number of J2 corresponding to a given treatment. The level of significance in indicated by *P < 0.0001, #P < 0.05 and ns = not significant at P = 0.05.