10.0-
 0 0 Young leaves
 SE3 Mature leaves
 N 8.0- o
 E

 S 6.0- 0
 S0 8

 c 4.0-
 0

 2.0-


 0.0-


 -2.0-
 I I
 Unfertilized Fertilized
 Nutrient treatment


Figure 3-5. Fertilization significantly reduced the leaf area consumed by individual
 Coptocycla leprosa beetles in the leaf palatability trials. This was particularly
 true for young leaves, as indicated by the marginally significant (P = 0.056)
 interactive effect between fertilization and leaf age (Table 3-6).