Table 5 in Trichilia (Meliaceae) plants: an important source of biomolecules with insecticidal properties

Table 5. Mean (± SEM) weights of Copitarsia decolora larvae when fed for 14, 21, and 28 d with artificial diet supplemented with bark extracts of Trichilia americana, Trichilia hirta, and Trichilia havanensis at 1,500 ppm. Also shown are subsequent pupal weights.
TreatmentLarval weight (mg)Larval weight (mg)Larval weight (mg)Pupal weightat 14 dnat 21 dnat 28 dn(mg)nControl diet127.4 ± 4.7 a24214.7 ± 2.5 ab24600.4 ± 6.8 a23392.8 ± 1.9 a23Trichilia americanaHexane3.1 ± 0.6 cd28.3 ± 0.2 bc2**Ethyl acetate0.8 ± 0.1 d61.3 ± 0.1 c64.1 ± 0.9 e6*Acetone34.1 ± 11.2 bc1847.4 ± 1.6 bc18211.0 ± 7.7 e18356.2 ± 0.9 d4Methanol46.1 ± 13.1 b20167.0 ± 7.5 b20443.4 ± 5.5 bcd20334.6 ± 1.8 f12Aqueous14.2 ± 0.5 cd23148.6 ± 4.9 bc23337.1 ± 3.6 cde22368.3 ± 1.3 bc15Trichilia hirtaHexane1.5 ± 0.1 d92.4 ± 0.1 c87.2 ± 0.1 e7*Ethyl acetate13.7 ± 0.4 cd15150.6 ± 4.2 bc15255.2 ± 1.3 e15363.9 ± 0.9 cd10Acetone21.8 ± 6.4 cd19237.5 ± 5.1 a19452.3 ± 1.9 bcd19319.3 ± 6.8 g10Methanol17.9 ± 0.3 cd14246.9 ± 4.2 a14520.3 ± 1.3 abc13363.8 ± 0.9 cd6Aqueous2.6 ± 0.1 d23***Trichilia havanensisHexane35.5 ± 0.8 bc17162.5 ± 3.0 bc17304.0 ± 1.2 de17317.8 ± 1.6 g10Ethyl acetate21.3 ± 2.0 cd21146.6 ± 5.9 bc20515.6 ± 5.3 abc20343.2 ± 0.7 e12Acetone16.6 ± 1.2 cd24123.1 ± 6.4 bc24286.7 ± 1.6 de23309.1 ± 1.6 h16Methanol28.1 ± 7.7 c22209.9 ± 9.1 ab22563.9 ± 3.3 ab21371.5 ± 1.2 b15Aqueous15.8 ± 0.9 cd24209.3 ± 6.5 ab24602.5 ± 2.9 a23390.3 ± 0.4 a16
Means in the same column followed by the same letter are not significantly different (P> 0.05; Holm-Sidak test). *No insects alive at this stage. n = number of living larvae.