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Alfalfa Weevil Activity Prediction Update: June 1, 2020
Activity of alfalfa weevils has been documented in many areas of South Dakota during the last week. At this time, the entire state has accumulated enough degree days for alfalfa weevils to be active.
Alfalfa Weevil Activity Prediction Update: April 8, 2021
As the temperatures begin to warm up around South Dakota, it is important to remember that some insect pests are accumulating degree days. One of the insect pests that we use degree day models to monitor is the alfalfa weevil.
Alfalfa Weevil Activity Prediction Update: April 20, 2020
During the last week, the colder weather that we experienced across South Dakota resulted in very little degree day accumulation. However, in some areas enough degree days have accumulated to potentially lead to adult activity within alfalfa fields.
Alfalfa Weevil Activity Prediction Update: April 27, 2020
It is finally warming up across much of South Dakota and that means the degree days are beginning to accumulate more rapidly. Alfalfa weevil activity is likely in areas around Rapid City, Hot Springs, Cottonwood, Mission, Pierre, Winner and Vermillion.
Alfalfa Weevil Activity Prediction Update: May 4, 2020
Temperatures continue to increase across South Dakota and the degree days are rapidly accumulating. With the exception of areas around Selby, Sisseton and Brookings, alfalfa weevil activity is likely in South Dakota.
Alfalfa Weevil Activity Prediction Update: April 14, 2020
The alfalfa weevil is a major spring insect pest of South Dakota alfalfa. Before 2018, this insect was reported as having large populations throughout much of South Dakota. However, during 2018 and 2019, we received fewer reports of alfalfa weevils, which may have been a result of the cooler and wetter spring conditions that were observed.
Alfalfa Weevil Activity Prediction Update: May 27, 2021
Alfalfa weevil activity is still being reported across much of the state. Although the degree day estimates for South Dakota indicate that much of the state has populations that are pupating, these estimates are not accurate. Scouting should continue throughout South Dakota.
Alfalfa Weevil Activity Prediction Update: April 15, 2021
Due to the cooler temperatures, we didn’t accumulate a lot of degree days for alfalfa weevils during the last week. However, there are some areas in South Dakota where alfalfa weevils may be active.
Nursery Pig Performance Impacted by Total Dissolved Solids in Water
Because water quality can vary considerably between production sites, it is important to identify the qualities of water that impact the growth performance of nursery pigs.
Cold Weather Management Options
Winter weather conditions impact cattle as well as the cattle producers. Cold temperatures combined with wind creates more stress and increased management to achieve similar animal performance.