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

<div>The mass-spectral chromatogram of nicotine in the ethanolic heat reflux extract of <i>N. tabacum</i> L. var Virginia origin of Ponorogo (a) and the nicotine standard (b).</div>

International Journal of Agronomy

fig2

Figure 2

Figure 2: Field Efficacy of <i>Nicotiana tabacum</i> L. var Virginia Extract against Coffee Borer Beetle (<i>Hypothenemus hampei</i>) Attacking Coffee Berries in Plantation Area 

Figure 2 | Field Efficacy of Nicotiana tabacum L. var Virginia Extract against Coffee Borer Beetle (Hypothenemus hampei) Attacking Coffee Berries in Plantation Area 