Red crown rot of soybean has become a new concern this season in Indiana after a few localized occurrences have been found this year.
37 articles tagged "soybean".
Indiana planting pace in 2023 was one of the fastest on record, which lined up with drought years as well as yield-breaking years. For most of our fields, soybean development in the month of June was summarized in one word – stagnant. Well, at least the aboveground growth seemed to stall out with the dry conditions. Fortunately, these soybeans were rooting down deep rather than expending energy into aboveground growth. If we have our choice of dry June or dry August, we will choose a dry June every time (assuming the roots have some access to moisture). The combination of timely planted soybean with good stand establishment and a dry June sets us up for a nice compact plant. We would rather have a compact plant that has good trifoliate node development and reproductive branches so the water use and photosynthetic efficiencies are optimized during pod development (July-August) and seed[Read More…]
Insecticide recommendations for controlling in-season infestations have been updated for corn, soybean and alfalfa.
Indiana soybean planting in 2023 is following the same track as 1988 and 2018, which could be devastating or bin busting! As you may or may not recall, 1988 was one of the worst droughts we have experienced. Indiana soybeans yielded 27.5 bu/ac, which was 11.5 bu less (30% reduction) than the trend yield (39 bu/ac). The only year with a faster pace was another drought year—2012. Late season rains saved the 2012 crop and Indiana yielded 44.0 bu/ac (5.8 bu below yield trend, ~12% reduction). Soybeans were planted at a fast pace in 1991 due to dry and drought conditions, but the yields were nearly unaffected (3% less than trend). Indiana has had six years that soybean planting progress was substantially faster than the five-year average (Figure 1). Three of those years were drought years (1988, 1991, 2012) while the other years (2018, 2020, 2021) were yield-breaking[Read More…]
Armyworm moth captures have varied throughout the state for the last eight weeks (see “Armyworm Pheromone Trap Report”).
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.
