Weed resistance problems vex Southeast wheat producers

In Southeast Farm Press

North Carolina leads the way for Upper Southeast wheat acreage with another big and promising crop in the ground this year. But increasing problems with resistance to ryegrass-controlling herbicides is a big threat to the crop.

Continue reading

Virginia Tech doctoral student wins regional award for work on grape root borer

Not many of us think about protecting grapevines from insects when we’re enjoying a glass of wine, but Virginia Tech Ph.D. student Jhalendra Rijal has made it his mission to help growers find ways to save their vines from the grape root borer. His work with the grape root borer, which has given growers new sampling methods and paved the way for other control options, earned him a Friends of Southern IPM Graduate Student Award.

Continue reading

Why do insects survive cold weather?

UGA entomologist Elmer Gray explains how biology helps insects survive prolonged freezing temperatures. This post was taken from the UGA Landscape Alert.

With this winter’s unusually cold temperatures, the question of how these conditions affect insects is sure to arise. It is of little surprise that our native insects can usually withstand significant cold spells, particularly those insects that occur in the heart of winter. Insect fossils indicate that some forms of insects have been in existence for over 300 million years. As a result of their long history and widespread occurrence, insects are highly adaptable and routinely exist and thrive, despite extreme weather conditions. Vast regions of the northern-most latitudes are well known for their extraordinary mosquito and black fly populations despite having extremely cold winter conditions.

Continue reading