Retraction Notice: F.O. Alao, T.A. Adebayo, Comparative Efficacy of &lt;i&gt;Tephrosia vogelii&lt;/i&gt; and &lt;i&gt;Moringa oleifera&lt;/i&gt; against Insect Pests of Watermelon (&lt;i&gt;Citrullus lanatus&lt;/i&gt; Thumb), International Letters of Chemistry, Physics and Astronomy, Vol. 51, pp. 5-12, 2015
International letters of chemistry, physics and astronomy