Tag Archives: Disease Control

Blast on the upswing in California

blast in a field

• By Luis Espino • I have been getting quite a few questions regarding blast, mostly from Glenn and Colusa counties. It seems that 2020 will be a year with significant blast pressure. Under California conditions, blast can be observed in fields before heading. This occurrence is referred to as leaf blast. Later, when panicles emerge, blast can infect the ... Read More »

How to scout for hydrogen sulfide toxicity

rice roots

• By Yeshi Wamishe • This is a reminder for you to take samples of rice roots from your fields to gauge how much the wet conditions this year followed by the normal permanent flood have affected your rice. This note is more useful for fields that have a history of hydrogen sulfide toxicity/autumn decline. However, it does not exclude ... Read More »

If you had smut in 2019, plan to protect crops this season

false smut

Epidemic levels of kernel smut and false smut were prevalent in the 2019 Louisiana rice crop. While smuts have always been a common problem in northeast Louisiana and the Mississippi Delta rice-growing regions, smuts were never really a concern in southwest Louisiana. Over the past five years, sightings of smut in southwest Louisiana rice fields have increased a little bit ... 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 »

North Louisiana farmers eye row rice more closely

LSU row rice meeting

• By Bruce Schultz • Farmers at the recent Northeast Louisiana Rice Forum heard about the benefits and challenges of growing row rice. The practice uses irrigation with collapsible poly tubing or rainwater to keep soil moist, but no permanent flood is maintained. Levees are not required, so farmers can wait until planting to make crop decisions. Mike Salassi, Louisiana ... Read More »

Hot off the press: Arkansas’ MP weed, insect and disease publications

Arkansas' MP publications

The 2020 versions of the University of Arkansas System Division of Agriculture publications on managing insects, weeds and plant diseases are now available online, through Cooperative Extension Service offices across the state, and, in one case, as a mobile-friendly website. MP44, “Recommended Chemicals for Weed and Brush Control”; MP144, “Insecticide Recommendations for Arkansas”; and MP154, the “Arkansas Plant Disease Control ... Read More »

LSU AgCenter experts offer tips on upcoming season

Adam Famoso LSU AgCenter

• By Bruce Schultz • Rice farmers preparing for the 2020 crop heard recently from LSU AgCenter experts about what they should be considering before they get into the fields. The meetings were held in Welsh, Vidrine and Crowley, and more are scheduled. Don Groth, resident coordinator of the LSU AgCenter H. Rouse Caffey Rice Research Station, said the medium-grain ... Read More »

Got disease? UCCE will be checking as part of burn plan reapproval

kernel smut

University of California Cooperative Extension is surveying for rice diseases this fall. The objective is to document the incidence of diseases in Sacramento Valley rice fields to justify to the California Air Resources Board the industry needs to continue burning 25% of its acreage annually. Every five years, the air board has to reapprove the straw burning program. One reason ... Read More »

Weather deals blow to Louisiana rice harvest

michael fruge

• By Bruce Schultz • Farmers probably would like to forget the 2019 rice crop, which has been plagued by low yields. Bad weather from the start of the growing season through harvest is being blamed. “Growing conditions have been less than ideal,” said Louisiana State University AgCenter rice specialist Dustin Harrell. “We didn’t have good conditions at any one ... Read More »

Blast is on the increase this season in California

blast in a California field

• By Luis Espino • Although blast isn’t at epidemic levels in California rice fields this season, the fungal disease nonetheless is at higher levels than during the past several years. The last time we saw a severe blast epidemic was 2011. Since then, we haven’t had much blast; in fact, I had not seen any blast at all during ... Read More »