Open Access Research Paper Views (513) Download (41) Efficacy of petroleum spray oils in management of powdery mildew in garden pea John Kamathi Kiige, Patrick Muthee Ngore Int. J. Agron. Agri. Res.11( 2), 14-21, August 2017. Key: Disease incidenceEfficacyGarden peaMineral oilsPowdery mildewSeverity Details