Yield losses from both are hard to predict and depend on the variety planted and growth stage of the crop when symptoms first appear, said Kiersten Wise, assistant professor in the botany and plant pathology department.
Sudden death syndrome is a fungal disease caused by the soilborne fungus Fusarium virguliforme. Symptoms of SDS include yellowing and discoloration of the upper leaves. The first symptoms typically appear in a few small strips or areas of the field, usually in wet or compacted areas. As the disease progresses, the leaf tissue between the major veins turns yellow, then dies and turns brown.
"There are several management practices that may prevent SDS damage, but once symptoms are present, there is not much that can be done," Wise said.
Producers should plant varieties that are less susceptible to SDS in fields with a history of the disease. SDS is typically more of a problem in early-planted soybeans, like those planted this year in April or early May, Wise said. Planting fields with a history of SDS last and avoiding compaction in those fields may reduce risk of disease development.
Symptoms of brown stem rot can often resemble those of SDS, so it is important to split the lower stem of suspected plants to determine which disease is present, Wise said. BSR can cause internal stem browning, resulting in a dark brown discoloration of the pith at the lower nodes of the plant. If SDS is present, the pith will remain white, and the cortex will be gray or brown.
"It is important to determine if the diseases are present in fields and, if they are, keep good field notes to identify problem areas and plan to manage these fields accordingly the next time soybeans are planted in these fields," Wise said.
For more information on SDS and BSR visit, http://extension.entm.purdue.edu/pestcrop/2010/issue23/index.html
Writer: Jeanne Gibson, 765-496-7481, email@example.com
Source: Kiersten Wise, 765-496-2170, firstname.lastname@example.orgAg Communications: (765) 494-2722;
Elizabeth K. Gardner | EurekAlert!
Raiding the rape field
23.05.2018 | Julius-Maximilians-Universität Würzburg
New technique reveals details of forest fire recovery
17.05.2018 | DOE/Brookhaven National Laboratory
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
24.05.2018 | Ecology, The Environment and Conservation
24.05.2018 | Medical Engineering
24.05.2018 | Physics and Astronomy