Rate this Article: Larvicidal Efficacy of Crude Essential Oil (Leaf Extracts) of Pyrethrum (Chrysanthemum: Compositae), Eucalyptus camaldulensis Sm (Myrtaceae) and Nicotiana tabaccum (Tobacco L.) (Solanaceace) against Third Instar Larvae of the Malaria Vector Anopheles gambiae s.s. Giles (Diptera: Culicidae)