Research Article

Functional Responses of Nephus arcuatus Kapur (Coleoptera: Coccinellidae), the Most Important Predator of Spherical Mealybug Nipaecoccus viridis (Newstead)

Table 3

Parameters estimated by an equation with an indicator variable for comparing type II functional response parameters of 1st and 2nd instar larvae and males of N. arcuatus.

Comparison stageEstimateApproximate SEApproximate 95% confidence
LowerUpper

1st instar-2nd instar
0.23930.2465−0.24730.7260
0.5222−5.2567−3.1948
1st instar-male adult
0.19780.3869 −056610.9616
−4.66870.8715−6.3694−2.9280
2nd instar-male adult
−0.04160.2994−0.63230.5492
−0.42290.0595−0.5402−0.3222

Significant difference parameters shown in bold face.