Now’s an Opportune Time to Scout for SCN
Originally posted via University of Nebraska-Lincoln CROPWATCH July through August is a good time to check soybean fields for soybean cyst nematodes (SCN), the most devastating pest for soybean growers in Nebraska and across the United States. Yield losses of 25 – 30% have been documented in fields with no visible injury on the soybean plants. That is why detection of SCN is so important. You need to know if it is present in your field, so you can start managing it if it is there. SCN cysts develop on soybean roots about a month after soybeans emerge and [...]
Disease: Resistance Problems Not Limited to Weeds and Insects
It is easy to see when weeds or insects develop resistance to a herbicide or insecticide. The weeds or insects are easy to spot in the field. Even some plant diseases are becoming resistant to some fungicides, as evidenced by the infected plants in the field. A harder place to detect resistance may be when soybean cyst nematodes, SCN, start to overcome the benefits of using a soybean variety with a particular source of resistance to SCN. Of the hundreds of SCN-resistant soybeans available to producers, the vast majority use the same source of resistance, PI88788. The explanation for [...]
Insect Management: Why You’ll Want to Sample for SCN This Fall
$45 million. That’s how much Nebraska soybean farmers are estimated to have lost to soybean cyst nematodes (SCN) last year. The good news is that loss will decrease in 2014. The bad news is that’s because the price of soybeans is lower, not because SCN is any less common. UNL Plant Pathologist Loren Giesler discusses soybean cyst nematodes on NESoyTV on YouTube. UNL Extension Educator John Wilson discusses the importance of sampling soil for SCN on Market Journal. SCN is a microscopic roundworm that attacks the soybean root and can have a devastating effect on yields. SCN is the [...]
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