This document contains results of soybean field trials conducted during the 2019 growing season to evaluate foliar fungicides to manage various soybean diseases.
Due to current grain prices and other reasons, growers may be considering planting spring wheat into fields that were planted to corn or milo last season. While this type of crop rotation is not generally recommended, economic and logistical challenges sometimes may dictate otherwise.
This publication provides a summary of wheat trials conducted in 2019 to determine efficacy of various products in managing wheat diseases.
Winter kill and general stand loss of alfalfa has specifically been of concern in many parts of South Dakota the last two years. Most observed alfalfa winter kill is due to low, wet or flooded areas where plants were suffocated and died over the winter.
The goals of applying any crop protection products include: increasing effectiveness, mitigating drift, and maximizing profits. We will focus on mitigating drift, even though all three interact with each other.
Tan spot and powdery mildew pathogens are two residue-borne pathogens that can infect wheat early in the season. These diseases can lead to poor tillering, and their continued development can lead to yield loss.
Temperatures are forecast to reach 32°F or lower in large areas of South Dakota for several nights beginning on May 7, 2020. While a relatively low percentage of planted crops are likely to be emerged at this point in time, producers may still want to evaluate individual fields for crop damage.
Although the majority of winter wheat in the state is rated good to excellent in the recent USDA-NASS report, a few winter wheat fields in Central South Dakota have been diagnosed with wheat streak mosaic disease (WSMD) caused by wheat streak mosaic virus (WSMV).
A few winter wheat fields in central South Dakota have been found with wheat streak mosaic disease. Incidence of this disease varied from a few plants to large portions of the field with yellowing leaves.
Seeing greener grass in circular pattern in your lawn? This is not due to uneven fertilizer application, but rather due to a fungi feeding on decomposing matter and releasing nitrogen in the affected areas.