Evaluation of Botanical Powders for the Management of Rice Weevil (Sitophilus oryzae L. Coleoptera: Curculionidae) in Rupandehi, Nepal

Table 1

Effect of botanicals on mortality of S. oryzae in wheat tested at Rupandehi, Nepal, in 2015.

Treatments	Percent mortality of weevil at
	3 DAT	7 DAT	10 DAT	14 DAT
Azadirachta indica, 15 g/kg	46.67^c (43.09) ± 1.20	61.34^c (51.55) ± 0.67	66.67^c (54.74) ± 0.88	70.67^c (57.21) ± 0.88
Nicotiana tabacum, 10 g/kg	61.00^b (51.35) ± 0.58	76.67^b (61.12) ± 0.67	81.67^b (64.65) ± 0.67	85.67^b (67.75) ± 0.33
Zingiber officinale, 20 g/kg	40.67^d (39.61) ± 2.19	51.00^d (45.57) ± 1.53	55.34^d (48.06) ± 1.33	58.34^d (49.80) ± 1.20
Allium sativum, 20 g/kg	49.67^c (44.80) ± 2.40	64.67^c (53.53) ± 1.33	69.67^c (56.59) ± 1.45	73.34^c (58.92) ± 1.45
Zanthoxylum armatum, 10 g/kg	50.34^c (45.19) ± 2.40	62.00^c (51.95) ± 2.08	66.67^c (54.75) ± 2.03	70.34^c (56.80) ± 1.45
Acorus calamus, 5 g/kg	68.67^a (55.98) ± 2.03	88.34^a (70.05) ± 0.88	94.00^a (75.85) ± 0.58	98.33^a (82.66) ± 0.33
Control	1.34^e (6.53) ± 0.33	2.67^e (9.35) ± 0.33	3.00^e (9.88) ± 0.58	3.66^e (11.01) ± 0.33
Mean	45.47 (40.93)	58.09 (49.02)	62.42 (52.07)	65.76 (54.88)
value	<0.001	<0.001	<0.001	<0.001
CV (%)	4.49	2.51	2.33	2.18
LSD	3.27	2.19	2.16	2.13

Mean in the same column with same letter is not significantly different at . Figures in parentheses represent arcsine transformed data.