Swarms of black flies are impacting livestock farmers in Arkansas this spring, reports University of Arkansas Extension. The population explosion is to blame for the deaths of a bull and cow in Arkansas County.
Flies are more than just an annoyance for calves in warm weather. High fly populations also can spread diseases among calves; cause stress and reduced immunity; and negatively impact growth and weight gain.
Moisture came to about two-thirds of the country last week, dropping heavy precipitation from the southern Great Plains northeastward into the northern Appalachians. But many areas remains in significant drought.