Santosh Sanjel

• Doctor of Philosophy
• Postdoctoral Scholar at Pennsylvania State University

Peanuts grown in tropical, subtropical, and temperate regions are susceptible to stem rot, which is a soilborne disease caused by Athelia rolfsii. Due to the lack of reliable environmental-based scheduling recommendations, stem rot control relies heavily on fungicides that are applied at predetermined intervals. We conducted inoculated field experi...

Athelia rolfsii, causal agent of “southern blight” disease, is a soilborne fungal pathogen with a wide host range of more than 500 species. This study's objectives were to (i) quantify the effects of two environmental factors, temperature and soil moisture, on germination of A. rolfsii inoculum (sclerotia), which is a critical event for the onset o...

Athelia rolfsii is a soil borne fungal pathogen with a broad host range. This pathogen overwinters in soil primarily as sclerotia, germinating under favorable conditions to produce mycelia that can infect susceptible host tissue. Sclerotial germination, a critical event for the initiation of disease epidemics, is influenced by soil temperature and...

This publication discusses land preparation and planting, fertilization, crop residue management, irrigation, disease and nematode management, variety selection, weed control, insect management, and harvesting and storage for soybean production in Florida. Written by D. L. Wright, J. A. Ferrell, S. Sanjel, and I. Small, and published by the UF/IFAS...

Orange rust of sugarcane caused by Puccinia kuehnii was first reported in Florida in 2007. Since then, several sugarcane cultivars that were resistant during the initial epidemics became susceptible within a few years. These shifts in resistance were attributed to the evolution of the pathogen and appearance of new races. To study the variation in...

Tomato spotted wilt virus (TSWV) has the potential to cause severe yield losses in peanut (Arachis hypogaea L.), an important annual legume grown around the world. The most effective approach to manage the disease caused by TSWV is to grow disease resistant peanut varieties. One of the key challenges to breeding for disease resistance is to develop...

Diverse field characteristics, weather patterns, and management practices can result in variable microclimates. The objective was to relate in-field microclimate conditions with peanut diseases and yield and determine the effect of irrigation and fungicides within these environments. Irrigation did not have a major impact on disease and yield. Stem...

Brown rust (caused by Puccinia melanocephala) and orange rust (caused by P. kuehnii) are two major diseases of sugarcane in Florida. To better understand the epidemiology of these two rusts, disease severity and weather variables were monitored for two seasons in cultivars CL90-4725 (susceptible to brown rust and resistant to orange rust) and CL85-...