Abstract
Aqueous extracts of 36 plant species were screened for antibacterial activity against Erwinia carotovora pv carotovora, Xanthomonas camprestris pv capestris and Pseudomonas solanacearum. Twenty-one of the plant species showed antibacterial activity, with Allium cepa, A. porrum, A. sativum, Euphorbia tirucalli, and Piper betel being active against all test pathogens.