![]() Seed treatment insecticides can help in the seedling stage and to a lessor extent after the wheat ripens. Stay alert and do the best you can to choose treatment options for this troublesome pest. Three, after heading when the second generation flies into the milo field and sets up housekeeping. Two, when wheat or oats ripen and the chinch bugs march across to the milo field next door. One, in the seedling stage when chinch bugs are present because of poor control or too late control of grasses like volunteer wheat. Trifold Chinch Bug Plan: Chinch bugs are a threat to sorghum at three stages. ![]() Treatments in August most often kill the greenbugs after the damage has been done. You have to scout fields carefully during July and make a decision on greenbug control. There are limited options for post grass control so scout heavy early and respond aggressively to escapes while they are small. Spraying the last part of the herbicide behind the planter and/or using glyphosate behind the planter extends the weed control program and ensures a clean field at planting without using tillage to dry the soil and plant more weed seed. When the herbicide is in place for the later planted crop, it saves moisture and gives the producer added options for both grass and broadleaf control. If there is no rain to activate the herbicide, escapes can occur where there is a bit of moisture in the soil to germinate grasses which come through the non-active barrier. Grass killers for sorghum are shoot absorbed. What about a burndown with glyphosate at planting or pre-emerge treatment? It can work, but there is a dangerous gap. So a solid before planting program is the best. There are few options for post emergence grass control until Clearfield hybrids become available. The keys to weed control in milo are Early Preplant (EPP) and Days Before Planting (DBP) listed in the University of Nebraska-Lincoln Extension Guide for Weed Managemen (See the Sorghum Weed Management section). This is particularly true as you move west in Nebraska to dryer and warmer summertime soil temperatures. Residue cover keeps the soil temperature a bit cooler and reduces stalk rot problems. ![]() Residue also shades the soil and reduces evaporation loss from the soil surface. It eliminates the moisture lost from every tillage operation which amounts to one-fourth inch to one inch depending on timing and depth. This helps to take the E (evaporation) out of ET (evaporation & transpiration), which are the water use components. If you feel you have to part the residue, do so without moving soil. ![]() Milo yields have been excellent under no-till systems. Please click here for information on a no-till sorghum starter fertilizer study. Because of the great reliance on postemergent herbicides for weed control, starter fertilizer usually helps produce a larger plant sooner and aids in the weed control. If the phosphorus level in the field is low, starter fertilizer is an excellent way to get the phosphorus efficiently placed for top response. Check out the sorghum soil management page for current University of Nebraska-Lincoln Extension recommendations for nitrogen, phosphorus, potassium, zinc, iron, and sulfur. Soil test levels and past yield goals will tell you the nitrogen fertilizer addition you will need and the response you might expect from phosphorus and zinc. Milo needs 1.1 pounds of nitrogen per bushel for top economic production. Results from a crop rotation study conducted by Paul Hay from 1994-2005. Plant 80,000 plants per acre on dryland in any row spacing in Gage County and drop the population 5000 plants per acre for every county west across southern Nebraska. Many times these are top performers and height is not a real issue with today's combines and is not closely related to stalk rot or standability. Select a top performing hybrid from one of the seed companies who are proud to sell milo seed.
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