Treatment

Aphids per plants ± SE

Average disease incidence ± SE

Final disease incidence ± SE

Hawassa

Meki

Hawassa

Meki

Hawassa

Meki

Uncovered

40.50 ± 1.72^a

45.21 ± 0.91^a

57.50 ± 1.30^a

63.12 ± 1.19^a

81.25 ± 2.60^a

87.50 ± 0.50^a

Netting for up to 20 days

27.75 ± 1.97^b

39.37 ± 0.34^ab

43.75 ± 1.25^ab

52.50 ± 1.04^b

71.87 ± 2.12^ab

78.12 ± 0.13^ab

Netting for up to 40 days

17.93 ± 0.87^c

25.90 ± 2.06^bc

34.97 ± 1.39^bc

42.50 ± 1.02^cd

51.37 ± 1.05^cd

65.62 ± 1.10^cd

Netting for up to 60 days

17.37 ± 1.34^c

21.56 ± 0.52^bc

29.87 ± 1.83^bc

38.75 ± 1.25^de

40.62 ± 1.12^de

59.37 ± 2.12^d

Netting for up to 80 days

13.06 ± 0.65^c

18.31 ± 1.03^c

24.37 ± 0.62^c

35.00 ± 1.04^de

37.50 ± 0.24^de

43.75 ± 1.60^e

Netting until harvesting

10.50 ± 0.47^c

14.90 ± 1.27^c

22.50 ± 0.33^c

32.50 ± 1.06^e

34.37 ± 1.13^e

40.62 ± 1.12^e

Spraying with insecticide

30.81 ± 0.19^b

37.37 ± 2.71^ab

48.12 ± 1.60^ab

49.37 ± 1.19^bc

66.25 ± 2.60^bc

75.00 ± 0.25^bc

LSD (0.05)

8.87

17.84

18.64

9.11

14.92

12.20

CV (%)

15.92

26.37

21.39

8.69

11.66

8.12