Armyworm moth captures have varied throughout the state for the last eight weeks (see “Armyworm Pheromone Trap Report”).
33 articles tagged "soybean".
No surprise, as reported in last week’s Pest&Crop, the “landing spots” for the many black cutworm moths into the state are now being realized. Another encouragement to scout high-risk corn and soybean fields as they emerge. Black cutworm larvae, some near pupation, were reported cutting soybean seedlings in Southwest Indiana. The river bottom fields, lush with weeds earlier this spring, had lost 4 to 8,000 plants/acre from the damage. Because of soybeans ability to compensate for lost plants, and the size of the cutworm larvae, no treatment will be necessary in these fields. Fortunately, the damage was scattered throughout, rather than concentrated in areas of the fields. If replanting, or filling-in, is being considered, the following publication may be of help, click HERE. In West Central Indiana, black cutworm damage was being reported in one-leaf sweet corn planted into cover crop residues. Most plants had some leaf feeding, and cutting[Read More…]
In recent weeks, fall armyworm infestations have been decimating some soybean and forage crops in Kentucky.
With EPA’s recent revoking of chlorpyrifos (e.g., Lorsban, Tundra Supreme) tolerances in food/feed crops, we have lost an active ingredient that provided control of spider mites.
In recent years, sulfur (S) deficiency has been diagnosed in corn, soybean, alfalfa, and wheat in the Midwest, including Indiana and Michigan.
After a delayed start to our planting season, we were able to plant both corn and soybean across the state in record or near-record time during May. This coincided with some timely rains and hot weather.
Soybean seed rate selection is based on a number of factors such as germination score, seed quality, variety, seed protection, planting equipment, and field conditions.
The number of 30-, 40-, and 60-ft wide (or larger) field crop planters across the U.S. Midwest is greater today than, say, 25 years ago.
There are a few resources available for monitoring field crop diseases here in Indiana.
It is important to continue to scout for diseases in both corn and soybeans. Recent rains have created favorable environmental conditions for the development of foliar diseases in both crops. In our scouting rounds this week we continue to find gray leaf spot, northern corn leaf blight, and tar spot in corn (Figure 1 and 3), and frogeye leaf spot, downy mildew and Septoria brown spot in soybean (Figure 2). In addition, we continue to add counties with active tar spot and southern rust in Indiana. The most frequent question I have received is, “Should we make a fungicide application?” My response – What diseases are you finding in your field? What is your hybrid/variety susceptibility and field history? What growth stage? Are you irrigating? A fungicide application can be effective at reducing disease and protecting yield, but there are a number of factors that need to consider: the field[Read More…]
