Research Article

Efficacy of Aqueous Extracts from Syzygium aromaticum, Tephrosia vogelii, and Croton dichogamus against Myzus persicae on Brassica oleracea in Northern Tanzania

Figure 4

(a) Population of C. septempunctata per crop in the two wet seasons. (b) Population of C. septempunctata in response to treatments. Note. W- water, w + s- water plus soap, S. p- synthetic pesticide, C. d- Croton dichogamus, S. a- Syzygium aromaticum, and T. - Tephrosia vogelii.