Sujaya Rao

Professor
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Office: 541-737-9038

Cordley Hall

Cordley Hall 4050B

2701 SW Campus Way

2701 SW Campus Way
Corvallis, OR 97331

Pest Management in Grass Seed and Rotational Crops
Native Bee Pollinators in Agricultural and Native Landscapes

Pest Management in Grass Seed and Rotational Crops:

Objectives of the program: 1) Identify new pests entering Oregon, and determine their pest status; 2) Examine the biology for identification of weak links that can be targeted for pest management; 3) Develop pest management strategies with minimal negative impact on the environment. Current research and achievements:

  1. Hylastinus obscurus, clover crown borer, a pest in red cloer seed production: biology, distribution, and evaluation of pest monitoring and management strategies.
  2. Tipula paludosa and T. oleracea, exotic crane fly pests: development of a molecular marker for early identification at the immature stage; evaluation of the impact of the insect pathogen, Bacillus thuringiensis israelensis on larvae.
  3. Oulema melanopus, the cereal leaf beetle: field evaluation of its aggregation pheromone, biological control using the larval parasitoid Tetrastichu julis, host preference behavior.
  4. Sphenophorus spp., billbugs: development of a molecular marker for early identification at the immature stage, distribution and damage in bluegrass.
  5. Epichloe typhina, choke disease pathogen: examination of its biology and interactions with host grasses and Botanophila spp., choke flies that serve as a vector for fertilization in the fungus, population genetic study for comparison of populations in Oregon with those in areas of endemism in Europe.
  6. Chirothrips manicatus, seed-feeding thrips: crop range and impact on seed yield.

Native Bee Pollinators in Agricultural and Native Landscapes:

Objectives: Determine the diversity and abundance of native bees in diverse cropping systems and surrounding habitats, and evaluate the impacts of bumble bees and honey bees in pollination. Specific areas of research:

    Red and arrow leaf clover
    Blueberries
    Cranberries
    Meadowfoam

Wild habitat - West Eugene Wetlands

Profile Field Tabs

At OSU
Affiliated with: 
Crop and Soil Science
Headquarters: 
OSU Main Campus