Research Article
An Evaluation on Intensity of Infection of Pseudocercospora Leaf Spot Disease of Cowpea Cultivars (Vigna unguiculata L. Walp), With Respect to Infector Rows, Dates of Inoculation and Cultivars, Grown Under Field Conditions in Northeast Thailand
Department of Agricultural Technology, Faculty of Technology, Mahasarakham University, Mahasarakham 44000, Thailand
S. Laohasiriwong
President`s Office, Nakhon Phanom University, Nakhon Phanom 48000, Thailand