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Table 2 Multiple linear regression models along with coefficients of determination (R2) regarding the impact of weather parameters on the seasonal abundance of different insect pests of betel leaf

From: Sustainable management approach for sucking pests control in betel leaf of Bangladesh

Name of the insect

Regression equation

R2

100R2

% Role of individual factor

F statistic

Black fly

Y = − 16.438 + 1.082X1

0.547

54.7

54.7

F1,10 = 12.09, P < 0.01

Y = 2.190 + 1.075X1− 0.227X2

0.570

57.0

3.7

F2,9 = 5.97, P < 0.05

Y = − 14.675 + 1.222X1− 0.057X2− 0.006X3

0.579

57.9

0.9

F3,8 = 3.67, P < 0.10

White fly

Y = − 12.201 + 0.726X1

0.343

34.3

34.3

F1,10 = 5.21, P < 0.05

Y = 31.610 + 0.710X1− 0.509X2

0.503

50.3

16.0

F2,9 = 4.56, P < 0.05

Y = 20.288 + 0.809X1− 0.395X2− 0.004X3

0.509

50.9

0.6

F3,8 = 2.76, P < 0.10

Red spider mite

Y = − 9.342 + 0.671X1

0.339

33.9

33.9

F1,10 = 5.12, P < 0.05

Y = 30.813 + 0.655X1− 0.489X2

0.510

51.0

17.1

F2,9 = 4.69, P < 0.05

Y = 2.843 + 0.725X1− 0.408X2− 0.003X3

0.513

51.3

0.3

F3,8 = 2.82, P < 0.10

Mealy bug

Y = − 10.008 + 0.645X1

0.363

36.3

36.3

F1,10 = 5.70, P < 0.05

Y = 27.265 + 0.630X1-0.454X2

0.535

53.5

17.2

F2,9 = 5.18, P < 0.05

Y = 1.223 + 0.683X1− 0.393X2− 0.002X3

0.537

53.7

0.2

F3,8 = 3.10, P = 0.089

  1. Y = insect population/vine; X1 = average temperature (°C); X2 = relative humidity (%); X3 = average rainfall (mm)