By Yeshi Wamishe, Extension Rice Pathologist Both kernel and false smut are severe in late planted susceptible rice. Under favorable conditions most of rice cultivars are susceptible including hybrid rice. Fields with history and excessive nitrogen are more prone to smuts. Triazole fungicides containing Propiconazole (Tilt equivalents) are still preventative options. Kernel smut is more […]

By Yeshi Wamishe, Extension Rice Plant Pathologist Sheath blight is a major disease of rice in Arkansas. It is caused by a soil pathogen and the fungus has several hosts including soybean and corn among others. It prevails in any rice field if conditions are right for the fungus to develop. Prolonged periods of high […]

Yeshi Wamishe, Extension Rice Pathologist Integrated disease management is the best approach to keep major rice diseases under control i.e., varietal resistance, best cultural practices and chemical products. Varietal resistance is the best and most user friendly disease control measure. However, host resistance is not always available to all diseases. Cultural management strategies are beneficial […]

— and Jarrod Hardke, Extension Rice Agronomist The concerns for blast disease have increased the last three years with wet and cold early spring conditions and as planting dates have been pushed later. This year southern Louisiana has reported blast early in the season, Texas reported in three counties, and Arkansas has reported in four counties (Desha, […]

Although most of the rice in Arkansas was planted late in the spring of 2015, the weather currently appears to help the rice grow faster than a few weeks back. Favorable weather for the rice often means encouraging the growth and multiplication of rice pathogens that have been creeping around the crop. Varietal resistance is […]

Rain, cloudy skies and overcast conditions that continued to hold up the planting of rice, did not hold up the rice blast pathogen from reproducing and infecting rice at an early growth stage in Southwest Louisiana. Rice leaf blast has been reported in Southwest Louisiana on the medium grain variety Jupiter to a large extent […]

About the Disease Bacterial panicle blight (BPB) is an important disease in Arkansas rice that has caused huge losses over the years, including 1995, 2010 and 2011. The cause was identified about 1996 by LSU scientists, but the problem has likely been around for a long time in the United States, often called something else. […]

Planning ahead not only should help you manage your fields adequately but also minimize disappointment at harvest. Remember the “disease triangle” of weather, varietal susceptibility, and the presence or absence of pathogens as the three major factors that play a role for plant disease occurrence. Pathogens can be brought to a field from various sources: […]

Leaf blast was reported in the second week of June on CL151 in some areas in Louisiana (Groth, Rice Newsletter, No. 12). There came another report of blast on CL152, Jupiter, and Mermentau in the third week of June from Louisiana (Groth, Rice Newsletter, No. 13) followed by a report from Texas in experimental plots of “Rex” […]