Alfalfa Weevil Infestations from a Landscape Perspective

IMG_0177Alfalfa weevil (Hypera postica) is the most problematic pest in Wyoming alfalfa fields. One of the reasons this pest is so tricky for producers to manage, is because infestations  can be highly variable and difficult to predict. They can be very problematic in some years and fields, and not at all in others.  As a result, producers have the difficult task of deciding if, how, and when to manage for weevil. Continue reading


Flower Power

cosmoIncorporating flowers in agricultural landscapes has been an area of increasing interest recently. As scientists and farmers try to find new ways to make food production more sustainable, an emergent idea has been to increase the functions (See Farm Meets Function for some WY examples!) that agricultural lands provide. One way to do this is to add diversity to the types of habitats found on agricultural lands. Continue reading

What about Aphids in Alfalfa?

Lady Beetle Adult 2009 Susan A BeebeBesides alfalfa weevil, alfalfa producers deal with a number of other pest insects like lygus (stay tuned for more on these critters!) and aphids. In focus groups conducted with Wyoming alfalfa growers over the past two years, it became clear that there was some confusion about what sort of damage aphids can cause to alfalfa, the types of aphids found in WY alfalfa fields, and how to manage them.

As a result we decided to put together a fact sheet with some information about aphids in alfalfa.  Continue reading