Table 1 Mortality rates of Plutella xylostella larval instars (2^ndand 3^rd) at different concentrations of Beauveria bassiana at various time intervals by direct spraying and leaf immersion methods

Methodology I

120h

1×10^8

63.3bc

57.8bc

1×10^7

50def

45.3def

1×10^6

36.7ghi

35.7fghi

1×10^5

22.2jk

23.3jkl

1×10^4

20jk

21.1kl

144h

1×10^8

77.8a

71.3a

1×10^7

61.3bcd

56.7bcd

1×10^6

52.3cde

47.7cde

1×10^5

42.3efgh

41.3efgh

1×10^4

32.3hij

31.1hijk

Methodology II

120h

1×10^8

51.3cde

44.7efg

1×10^7

45.5efg

39.7efgh

1×10^6

32.3hij

31.3hijk

1×10^5

20jk

17.8l

1×10^4

18.9k

17.8l

144h

1×10^8

70ab

60b

1×10^7

53.3cde

47.7cde

1×10^6

44.4efgh

41.3efgh

1×10^5

37.7fghi

33.3ghij

1×10^4

28.9ijk

27.8ijk