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Category Posts for Disease

20
Nov
2017
Field Performance of Selected Soybean Varieties in a Southern Root-knot Nematode Infested Field
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist; and Michael Emerson, Plant Pathology Program Associate The southern root-knot nematode (Meloidogyne incognita) is the most important yield-limiting plant-pathogenic nematode that affects soybean production in the mid-South.  It is found in nearly all soybean producing counties in Arkansas and can cause significant (>50%) yield loss when the wrong soybean […]

31
Oct
2017
Rice Research Verification Program Final Update – October 27, 2017
Author: Ron Baker, Rice Research Verification Program Coordinator

By Ralph Mazzanti and Ron Baker, Rice Research Verification Program Coordinators All fields are harvested and yields are calculated. Program fields in the south had a yield average of 196 bushels/acre while those in the north averaged 176 bushels/acre for a combined yield average of 186 bushels/acre. This is a 20 bushel increase over the […]

30
Oct
2017
The rice disease management mantra: Match the field to the variety
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Knowing rice cultivar responses to diseases ahead of planting along with knowing your field history is advantageous when it comes to managing rice diseases. It is important to match your field history with the variety of your choice. For instance, planting blast susceptible varieties in historically blast prone fields […]

13
Sep
2017
Maximizing Wheat Yields and Profit in 2018
Author: Jason Kelley, Wheat & Feed Grains Extension Agronomist

By Jason Kelley, Extension Wheat and Feed Grains Agronomist The 2017 Arkansas wheat crop was small in acreage but many producers reported exceptional yields with intensive management.  Acreage was at or near record lows with approximately 195,000 acres planted in the fall of 2016.  Acreage was down for several reasons, but low grain prices at […]

13
Sep
2017
Soybean rust confirmed in Southeast Arkansas
Author: Terry Spurlock, Extension Plant Pathologist

By Terry Spurlock, Extension Plant Pathologist Soybean rust was confirmed in Ashley (33.249093°, -91.846713°) and Lincoln (34.077432°, -91.832217°) counties last week.  Fields were R6 and R5.5, respectively.  Only trace amounts were observed in the field in Lincoln County, but the field in Ashley County had quite a bit more rust.  The occurrence of the disease […]

12
Sep
2017
Rice Research Verification Program Update for Sept. 8, 2017
Author: Ron Baker, Rice Research Verification Program Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators South Arkansas:  Seven of nine fields have been harvested with yields all over the board ranging from excellent to poor.  Prairie County was excellent as well as the Jefferson County row-water field.  The Clark County field encountered severe blast and had a lot of […]

08
Sep
2017
Poor soybean seed quality
Author: Jeremy Ross, Extension Agronomist - Soybeans

By Jeremy Ross, Extension soybean agronomist With soybean harvest in Arkansas just beginning, we are receiving many reports of poor seed quality in many of these fields (Figure 1).  Many are placing the blame for this poor seed quality on the tremendous number of Redbanded stink bugs we have experienced this growing season.  We have […]

08
Sep
2017
Peanut producers: Be on the lookout for Sclerotinia blight
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension plant pathologist Sclerotinia blight of peanut is a cool season fungal disease that was first reported in 2014 in Arkansas.  Earlier this week it was reported in two NEW commercial peanut fields in Lawrence and Randolph counties.  This is a challenging disease to manage because host resistance is moderate at best, […]

22
Aug
2017
Arkansas soybean disease update: Target spot and frogeye leaf spot
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist The spectrum of foliar diseases changes each year as environmental conditions change, which has a significant impact on disease development.  The weather pattern in early August was favorable for target spot (TS) and there have been several reports of TS in central and northcentral Arkansas.  Overall, conditions and variety […]

22
Aug
2017
Rice Research Verification Program Update for Aug. 18, 2017
Author: Ralph Mazzanti, Rice Research Verification Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators South Arkansas:  Rainfall amounts have been from 4” in Lafayette County to 3.4” in Desha County hindering harvest.  Four fields are mature and ready for samples to be cut after some dry weather.  Prairie County cut a sample and the moisture was 24%.  The […]