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Table 1 Relative preference by E. formosa to different nymphal instars of T. vaporariorum

From: Relative preference and demographic parameters of Encarsia formosa Gahan against Trialeurodes vaporariorum (Westwood)

Instar

Parasitism (%)

Host feeding (%)

Total host killing (%)

Relative proportion

Parasitism

Host feeding

I

6.00±2.45a

28.00±20a

34.00±2.45a

0.17±0.07

0.83±0.07

II

16.00±2.45a

12.00±20b

28.00±2.00a

0.57±0.07

0.43±0.07

III

46.00±5.10b

4.00±2.45bc

50.00±3.16b

0.91±0.06

0.09±0.06

IV

50.00±3.16c

2.00±2.00cd

52.00±3.74c

0.97±0.03

0.03±0.03

CD (p=0.05)

(9.14)

(9.37)

(5.22)

  
  1. Means within a column followed by same alphabet are not significantly different at p≤ 0.05 (LSD test)