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Table 4 Effect of Hyposidra talaca nucleopolyhedrovirus (HytaNPV) on the yield of harvestable shoots of tea

From: Hyposidra talaca NPV (HytaNPV): a potential baculovirus for efficient control of the black inch worm, Hyposidra talaca Walker (Lepidoptera: Geometridae), a major pest of tea Camellia sinensis (Ericales: Theaceae (L.) O. Kuntze)

Treatments

Concentration /ha

Assam

Dooars

*Green leaf yield (Kg/Plot)

Processed tea (kg/ha/year)

*Green leaf yield (Kg/Plot)

Processed tea (kg/ha/year)

HytaNPV

400 ml$

2.21b ± 0.19

385 ± 4.25

2.01cd ± 0.19

375.5 ± 4.25

 

600 ml$

2.25ab ± 0.18

389 ± 4.36

2.05bc ± 0.18

386 ± 4.36

 

800 ml$

2.31a ± 0.16

400 ± 4.45

2.11ab ± 0.16

400 ± 4.45

 

1000 ml$

2.33a ± 0.23

403.5 ± 4.21

2.13a ± 0.23

402.5 ± 4.21

Flubendiamide 20WG

80 g

2.35a ± 0.29

406.1 ± 4.19

2.12a ± 0.29

404 ± 4.19

Emamectin benzoate 5%SG

40 g

2.34a ± 0.22

404 ± 4.37

2.14a ± 0.22

406 ± 4.37

Control

Water

1.81bc ± 0.14

248 ± 4.25

1.75d ± 0.14

238 ± 4.25

F value

7.3

8.4

9.1

11.2

p value

 

 < 0.0001

 < 0.0001

 < 0.0001

 < 0.0001

  1. *For green leaf yield, values indicate the mean of three replications ± SE. (six rounds of leaf plucking following weekly intervals for two seasons)
  2. $Containing 1 × 1010 PIBs/ml. Tukey’s post hoc honestly significant difference (HSD) test indicates that values in the same column that are both followed by the same letter are not statistically different from one another at the 95% confidence interval (p < 0.05)