Even though rainy conditions continue to slow planting across the state, we need to keep an eye on winter wheat. These wet conditions will favor many fungal diseases.
Even though rainy conditions continue to slow planting across the state, we need to keep an eye on winter wheat. These wet conditions will favor many fungal diseases.
The prospect of delayed planting of corn leads corn growers to consider whether changes in seeding rate should be made in response to late planting. The short answer is that optimum plant populations probably remain the same regardless of planting date.
Successful stand establishment of a corn crop relies on many factors, including the successful emergence of the seedlings in the first place. Seedling emergence occurs as a result of elongation of the mesocotyl that elevates the coleoptile or “spike” toward the soil surface.
No reason exists to expect drought anytime soon in Indiana, with much of the state remaining rather wet after last weekend’s showers. One good new development exists.
Wheat has greened-up and is actively growing across Indiana. Our southern field plots in Vincennes were at Feekes 8 (flag leaf emerged) earlier this week, while in West Lafayette plots are at Feekes 5 (leaf sheath strongly erect).
We have received a few questions this winter and spring about ammonium sulfate (AMS) rates to use with postemergence herbicides and how much is needed to overcome hard water issues.
In looking over the black cutworm and armyworm pheromone reports, it is obvious that many moths have arrived into Indiana. This, coupled with a delayed planting season, increases the likelihood that high-risk fields may experience damage.
Indiana Climate and Weather Report – 4/17/2019
Wild garlic (Allium vineale) has shown up in many Indiana no-till corn and soybean fields this spring especially, in southern Indiana. Wild garlic is most troublesome in wheat, where aerial bulblets contaminate harvested grain and impart the garlic flavor into processed products such as wheat flower. Infestations in corn and soybean fields have less adverse effects on the crop, but can spread quickly across fields and are difficult to control with typical burndown treatments of glyphosate and 2,4-D. Management of wild garlic must occur early in the spring as this perennial will quickly become reproductive in mid to late spring. Wild garlic produces aerial bulblets and begins to senesce in late spring to early summer. As with all weeds, wild garlic management needs to occur prior to seed or in this case bulblet production to reduce future infestations. Ideally herbicide applications should take place in early April when the wild[Read More…]
This spring we have received a number of questions regarding the use of glyphosate-based burndown herbicides programs with ATS (ammonium thiosulfate). Increased use of ATS is being driven by the fact that sulfur deficiency symptoms are showing up on fields with low sulfur soil test levels.
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