Combines Asian Soybean Rust Confirmed in Northeast Arkansas

Old_Pokey

Guest
Please educate me a little bit on this asian rust Deadduck. Is this something that could overwinter on the seed in a warehouseIJ We have a different kind of rust here in the PNW. It is on grass seed and will overwinter here in this climate, plus the host plant is perennial. This asian rust, it would'nt effect rice too would itIJ
 

riceman

Guest
Thats my county that its in. Crittenden. Deadduck, you have any yetIJ I would say you picked a fine time to leave here...but you'll have it too so I guess it doesn't matter much. I haven't heard where its at in the county but I'll try to find out. Theres a few beans with leaves still on. Still no frost.
 

Deadduck

Guest
Old Pokey, I'm not and doctor and don't play one on TV, so I might not be able to educate you very much, but here goes. Asian rust is a new disease to the US. It was just discovered here within the last few weeks. It has been in South America now for several years now and does a lot of damage down there. Infected fields can show near total yield loss if not controled. From what I understand, it is NOT a seedbourne diesease. It can overwinter on plant material in warmer climates. It infects some legumes, such as soybeans, peas, vetch, kudzu, some clovers, etc. It is a windbourne disease, so even though it might not overwinter in the midwest, the spores will move with the wind over wide areas. Scientists are still unsure exactly how far north this disease will travel. It has now been found in Crittenden County AR, which is across the river from Memphis. That aint too far from Illinois, as the crow flies. There are fungicides that will manage the disease, USDA estimates farmers in affected areas will spend, on average, about $25 per acre to manage the disease. Early detection is critical, though some areas will probably make blanket preventive applications. Below is a link to the USDA APHIS soybean rust page. Hope this helps.
 

Deadduck

Guest
I'd heard it was found in Crittenden County, near the MS River. Wondered whose farm it was on. I think it will be pretty widespread next year across the South, as they have confirmed it in 6 southern states, and a case in Tennessee is still pending. There are so many voluteer beans in our fields that we probably have some of it around. I haven't looked. Nothing we could do about it anyway. This stuff will travel just like leaf rust in wheat, only there are no resistant varieties yet. We'll just have to count on one or two fungicide applications and factor that into our production costs.
 

riceman

Guest
How can it be detected on beans with no leavesIJ Wonder if it was found on volunteer beans. Plenty of green combines to leave green trails around here. Will it overwinter in the soil or just on topIJ Stubble roller might help. I don't know though. Dang a frost then dry weather would help so much here its not even funny.
 

Old_Pokey

Guest
That helps a bunch Deadduck. Thanks for taking the time to share that info. Because it effects clovers, or can effect clovers, it is some concern to me. Thanks again.
 

Deadduck

Guest
I'm assuming that they are finding them on volunteer beansIJ But not sure. Not sure on the overwintering. The universities talked like there were no cultural practices that would help. Not sure though. Ya'll should be getting a frost soon. I think they're calling for us to get a light frost Thursday night. Down to 35 or so. So surely it will get colder up there. Good luck.
 

riceman

Guest
I hope we get a frost. Killing any ducks down thereIJ I haven't even been hunting yet. Been seeing a few deer though.
 

Deadduck

Guest
Haven't been duck hunting yet. Been raining hard for the past several days. Could have gone Saturday but we don't really have many ducks around yet. Mainly just some local birds, one shot and they're gone. Things usually don't get cooking down here until around the first of Dec. Of course the last several years, we haven't had many birds at all. Hopefully that will change this year. Good luck.
 

riceman

Guest
We're in the same boat. Not many birds here yet. Usually they show up Jan. 30 after the seasons over. But we got another 3 inches last night so theres plenty of water.