Tag Archives: fungicide

Use the DD50 rice management program to stay ahead in 2020

emerged rice

• By Jarrod Hardke • Each year, I’m surprised at the number of producers not currently using the DD50 Rice Management Program on their farms. This program is designed to take much of the guesswork out of in-season management for producers and consultants. In general, projected dates of key timings are accurate within a couple of days throughout the season. ... Read More »

Syngenta launches seed treatment with 4 modes of action

syngenta logo

Syngenta has launched Vibrance RST rice seed treatment, which contains four different fungicidal modes of action to control seedborne, soilborne and seedling diseases, according to a news release. The four active ingredients are: • Azoxystrobin, a Group 11 fungicide, protects against Rhizoctonia and Pythium species and some soilborne and seedborne diseases, including rice blast. • Fludioxonil, a Group 12 fungicide, ... Read More »

Match fungal disease to best fungicide application timing

rice blast

• By Yeshi Wamishe and Jarrod Hardke • Drs. By Yeshi Wamishe, Extension rice pathologist, and Jarrod Hardke, Extension rice agronomist, provide the optimum fungicide timing window for various fungal diseases below. You also can download this information and more by clicking Blast: For neck and panicle blast, two applications may be required for maximum suppression with the first at ... Read More »

Rude awakening

sheath blight lesions

Fungicide-resistant sheath blight should be a wake-up call to follow resistance management rules regardless of where you farm. • By Vicky Boyd, Editor •  Resistance of the sheath blight pathogen to the popular strobilurin fungicides continues to increase, encompassing roughly half of Louisiana’s rice acres as well as one confirmed field in Mississippi. Although strobilurins still provide good sheath blight ... Read More »

Researchers isolate previously unknown rice blast resistance

sampling for rice blast

A never-before-described gene that gives rice resistance to a disease that has been costing about $66 billion a year in global damage has been isolated by a team of scientists led by Agricultural Research Service plant pathologist Yulin Jia. Rice blast, caused by the fungus Magnaporthe oryzae, results in annual yield losses large enough to have fed 60 billion people ... Read More »

Fungicide timing critical for smut management

kernel smut

Kernel smut in rice seemed to be more prevalent in southwest Louisiana last year than it has been historically. Typically, kernel smut pressure in southwest Louisiana is much lower than in the northeastern Louisiana rice-production area. Read More »