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)

Egyptian Journal of Biological Pest Control

Table 2 Effect of Hyposidra talaca nucleopolyhedrovirus HytaNPV on the black inch worm (BIW) under micro-plot field conditions

Treatment/ Concentration	Pre-treatment observation (Average no. of (BIW) / tea bush)	Post-treatment observation Mean percent reduction of (BIW) after*
Treatment/ Concentration	Pre-treatment observation (Average no. of (BIW) / tea bush)	24 h	7 days
Control (Water spray)	18 ± 1.12	0.0^a	0.0^a
HytaNPV@400 ml/ha^$	15 ± 1.22	2^a	80^b
HytaNPV@800 ml/ha^$	19 ± 1.53	3^a	85.7^b
Flubendiamide 20WG@80gm/ha	17 ± 1.45	65^b	96.5^b

^*Values represent the mean of three replications, for average no. of looper per tea bush (pre-spray incidence) and mean percent reduction of looper after 24 h and 7 days (post-spray incidence)
^$Containing PIBs of 1 × 10¹⁰. According to Tukey’s post hoc honestly significant difference (HSD) test, values in the same column with different superscripts are statistically different at p < 0.05