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Resistant soybean varieties are extremely important for managing soybean cyst nematode (SCN). ISU Extension recently updated the list of SCN-resistant soybean varieties available for Iowa growers.
Fall is not such a great time to sample fields for nematodes that feed on corn, except for a few specific instances which are explained in this article.
Fall is a perfect time to collect soil samples to check fields for the presence of soybean cyst nematode and to learn if management strategies are keeping nematode numbers in check in fields known to be infested.
The weather has been wonderful for many autumn tasks, but as it turns out, soil temperatures above 50F are also good for the growth of soybean cyst nematode juveniles.
Anhydrous ammonia applied before daily soil temperatures remain below 50 degrees Fahrenheit and continue trending lower can result in the nitrogen loss that can impact crop development and have negative environmental impacts, such as enhanced leaching into groundwater and streams once converted to nitrate.
by Roger Elmore, Department of Agronomy
October corn yield forecast for Iowa dropped to 169 bushels per acre, a significant reduction from the August and September forecasts of 179 bushels per acre (see October USDA-NASS forecast). If realized, 2010 yields will rank sixth among the last seven years, higher only than the yields of 2006 (166 bushels per acre). Numerous published and anecdotal yield reports substantiate lower than expected yields this year.
by Erin Herbold, Center of Agricultural Law and Taxation
In an article posted October 7 on the Center of Agricultural Law and Taxation (CALT) website, staff attorney Erin Herbold outlines the legal background and details of the statement made by the Iowa Department of Agricultural and Land Stewardship (IDALS) regarding the harvest of flood-damaged grain in Iowa.
Harvest is underway and a few issues stemming from the unusual weather patterns last summer are coming up. On September 30 the Iowa Department of Agriculture and Land Stewardship issued a statement saying that grain submerged (over the grain) in flood waters was to be considered contaminated and therefore not eligible for entry into food-feed markets.
