This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Daniela Dryer Alfalfa Verticillium Wilt February 13, 2008 What is alfalfa verticillium wilt? Is a fungus that infects alfalfa and likes a wet cool environment. The Latin name is Verticillium alboatrum. In 1985, verticillium wilt was first found in United State in the Northern Utah. The crop that this pest causes a problem in would be alfalfa. In addition, alfalfa verticillium wilt can live on more than 200 different plants like potatoes, tomatoes, dandelion, and curly dock. When scouting alfalfa fields you should look at the stem and roots but mostly look at the leafs. The life cycle of this pest to travel through the air, then the fungus gets on a tissue of a host plant and infects the host. The fungus has conidia that will force it way into the root and stem to get to the xylem vessels to produce more conidia. These will colonize in the vascular system in a plant and plug it with mycelium and hyphae that reduce the amount of water the plant takes up. Alfalfa should not be cut or grazed for four to six reduce the amount of water the plant takes up....
View Full Document
- Spring '08