Table 2 Effect of different doses of gamma irradiation on survival (%), dry biomass (g L^− 1), antifeedant activity (%), and cumulative mortality (%) of the 3rd instar Spodoptera littoralis larvae feeding on castor leaves treated with methylene chloride extract of A. sydowii AUMC14506

0.00 (C)

100 ± 0.00^a

8.66 ± 0.72^a

46.61 ± 2.52^c

56.84 ± 2.12^c

250

98.45 ± 1.65^a

8.01 ± 0.32^a

48.91 ± 2.67^c

59.51 ± 1.76^c

500

86.56 ± 1.21^b

7.43 ± 0.57^ab

56.41 ± 1.85^b

66.52 ± 3.21^b

1000

65.77 ± 2.55^c

3.21 ± 0.22^b

62.69 ± 2.66^a

72.93 ± 1.77^a

2000

28.18 ± 1.53^d

1.92 ± 0.71^b

5.22 ± 0.44^d

10.41 ± 1.01^d

4000

0.00 ± 0.00^e

0.00 ± 0.00^c

0.00 ± 0.00^e

0.00 ± 0.00^e