Rainfall and temperatures influences corn yield throughout its lifecycle, but especially during the seed fill period.
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If flooding fully submerges corn in fields with soil temperatures above 70 degrees Fahrenheit for more than 24 hours, the corn will not survive. For corn at blacklayer, seed fill was complete. The flooding event, itself, will not affect seed fill. For corn that was near blacklayer, these plants will die prematurely, reducing yields. In either scenario, flooding will slow grain drying and possibly complicate harvest.
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Predicting corn yield is a challenge each year and perhaps more so for this season.
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Farmers are annually concerned about corn disease, and this year will be no exception. Corn is moving through growth stages quickly, and the warm, humid weather in many parts of Kentucky has been conducive for foliar disease development.
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Corn across Kentucky has had a difficult week. Corn looks erratic in many fields, especially in the eastern half of the Commonwealth. Much of the crop is finally large enough to reveal planting errors, restricted roots and dry spots in fields.
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Cutworms are cool-weather, early-season pests of many cultivated plants. Cool conditions and excessive moisture has delayed planting and slowed growth of some crops this year, extending the period of vulnerability to cutworms.
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The abnormally cool, wet spring has delayed planting across Kentucky. Although farmers are understandably eager to begin planting corn, planting into cool, wet soils can increase the risk of seedling blight.
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The calendar says that farmers in western and southern Kentucky should be planting corn. The weather says something very different right now.
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Dr. Kiersten Wise presents a guide for Planning for Corn Disease Management 2018
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Twenty-five entries exceeded the 300 bushel mark in this year's Kentucky Corn Yield Contest. See who broke the grain bin this year.
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The 2017 growing season was wet early and dry later with conditions for excellent yields.
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The hybrids submitted for testing are those most likely to be available for sale in 2018. Representatives from seed companies select and nominate their own hybrids. They provide the seed listed in Table 1 and identify the maturity and/or seed coat color
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The latest resources regarding ear rot and mycotoxins.
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Almost 25% of the corn harvested in Kentucky will be sold in January, the largest of any month. Therefore, it is important to know the cost for drying and storing corn to ensure the cash price received will cover the costs.
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Southwestern corn borer (SWCB) (Diatraea grandiosella) was a caterpillar regarded as one of the most serious insect pests of corn in the late 1970s.
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Southern rust of corn, caused by the fungus Puccinia polysora, was confirmed by the University of Kentucky Plant Disease Diagnostic Laboratory (PDDL) this week on samples from Caldwell County and Graves County.
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A new system known as the “Integrated Pest Information Platform for Extension and Education,” iPiPE for short, is now being used to track southern rust of corn in the U.S.
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Some people are concerned about making a sidedress nitrogen (N) application prior to the big rain event predicted for later this week. Are we going to lose the N we apply just before the rain?
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