Field Efficacy of Nicotiana tabacum L. var Virginia Extract against Coffee Borer Beetle (Hypothenemus hampei) Attacking Coffee Berries in Plantation Area

Table 1

The triplicated randomized block design (RBD) in this experimental design.

Block (@area = 0.5 hectare)	Extract^† (ml)	Sample name^‡
I	150	E1-T01
	150	E1-T02
	150	E1-T03
II	300	E2-T04
	300	E2-T05
	300	E2-T06
III	450	E3-T07
	450	E3-T08
	450	E3-T09
Control	0	C-T10
	0	C-T11
	0	C-T12

^†Each extract was diluted into 100 l of water, except the control. ^‡E1, E2, and E3 are the extract solutions that consist of 150, 300, and 450 ml of the concentrated extract, respectively. They are then sprayed into the randomized plants on a total of 2 hectares. T01 until T12 are the randomized coffee plants used in this study. C is the control without treatment.