Cool Season

A fall armyworm outbreak is occurring throughout Virginia, Kentucky, and Ohio. This week, we received a report of armyworm damage to sod from Maryland’s Eastern Shore as well as residential lawns in Lewes, Delaware. This appears to be one of the most significant armyworm flights in many years. Scout turf, sod, pasture grasses, any late sweet corn that has not yet headed, and when the time comes, small grain and cover crops. Females lay egg masses containing between 50 and 200 eggs, meaning damage can be localized and intense and that it does not take many moths to infest a field. It is important to catch an infestation as early as possible. Larvae consume 80% of their total intake during the last three days of larval development. Often, it is during this period or just after larvae have finished that damage is noticed, occurring seemingly overnight as if an army had stripped the field. It takes about 14-19 days for larvae to mature.

Although fall armyworm (Spodoptera frugiperda) is a native pest to North America and a chronic pest in the southeastern US, reports of fall armyworm activity and outbreaks are unusually high this year. There are numerous reports of heavy fall armyworm activity coming out of Virginia, Kentucky, Indiana, Illinois, Ohio, and other states. In Maryland, there have been cases reported across much of the state so far, including Anne Arundel, Baltimore, Charles, Calvert, Frederick, Howard, Montgomery, Prince George’s, St. Mary’s, and Washington counties. Weather conditions have allowed fall armyworm to flourish this year, so producers are encouraged to be on the lookout for potential problems.

Agronomy Newsletter -April 2024, Volume 15, Issue 1. Topics include: Italian Ryegrass Weed Control, UMD Grain Marketing Site Updated, Soybean Populations, Row Spacings, and Planting Dates, Implications Due To The Closure of The Port of Baltimore, Cover Crop Termination and Growing Degree Days, Soybean Fungicide Seed Treatments, Ag Hiring Webinars, Ag Commodity Markets: Review and Outlook, Spring Forage Events, Organic Grain Transition Survey, Hunting and Wildlife Seminars, Manure Hauling & Injection Cost-Share, Weather Outlook, and Regional Crop Reports

With the first freeze of the fall just around the corner, remember that a frost can result in potential hazards for certain forages. When a plant freezes, changes occur in its metabolism and composition that can cause toxicity issues for livestock. A few issues to be on the lookout for are discussed in this article.

When it comes to something like mowing or clipping pastures, there are certainly two sides to the fence: those that think mowing or clipping pastures is just something that has to be done, and those that think it is a waste of time and fuel and offers little benefit. In truth, the reality is that both sides are right—the need to mow or clip is usually site and time-specific and will depend on several factors. Sometimes the decision is easy, and sometimes the decision is less clear, so what are the arguments for or against mowing or clipping?

It’s the time of year when our alfalfa fields are just waking from winter slumber, or at least we hope they are. We are hopeful that a combination of favorable moisture and thoughtful management will have fields greening up with a strong stand. Unwelcome are brownfields or something close to it. Fortunately, this doesn’t happen often. Yet, when it does, the decision of what’s to follow is painful but an easy one to make — time to put this field out of its misery and plant something else.

With August upon us, we may still be feeling the heat of the summer at the moment but whether or not we’re ready, cooler temperatures are just around the corner and it’s time to be thinking about winter feeding strategies. Using harvested forages for winter feed represents a substantial expense for livestock operations. For many grazing operations, stockpiling can be an effective strategy to extend forage resources further into the fall and winter season, reducing the costs associated with harvesting and storing feed and providing high-quality pasture for fall and winter grazing.

Dairy farms in particular recognize the value of winter forages like triticale as a high-yielding and high-quality forage crop for livestock. The yield potential for winter forages is largely based on planting date and fall nitrogen availability; these two critical factors determine the number of fall tillers, which set the yield potential for the following spring. Winter forages like triticale can also serve as a good source of protein, potentially making them a more economical alternative to other feed ingredients such as soybean meal for meeting ration protein needs.

The Maryland Milk Moos is a quarterly newsletter published by the University of Maryland Extension that is focused on dairy topics related to Nutrition and Production, Herd Management, and Forage Production.

Cattle Tales Livestock is a quarterly newsletter published by the University of Maryland Extension that focuses on bringing timely, relevant information to Maryland's livestock producers. Topics in this issue (August 2021, Edition 2) are Stockpiling Pasture for Fall and Winter Grazing, Weaning Tips and Vaccination Programs for Beef Calves, Managing Bloat in Pastured Cattle, and Limit Feeding Growing Cattle.