Potato Leafhopper Management in Alfalfa
Potato Leafhopper life stages.
Line drawings of potato leafhopper coutesy of Purdue University's Corn & Soybean Field Guide (CRW) and Field Crop Pest Management Manual (IPM-1) PLH.
- Adults are lime green and can fly.
- Nymphs are yellow-green and cannot fly.
- PLH adults overwinter in the South, then travel to New York on spring storms.
- Females lay their eggs in alfalfa leaves after arrival.
- Each generation lives approximately 28 days. There may be more than one generation per season.
- The greater the heat, the faster the generations will develop.
- Both adults and nymphs can cause damage.
- Damage symptoms consist primarily of V-shaped yellow patches on the leaves and possibly stunting of the plant.
- Primary value loss occurs from the reduction of protein. However, excessive feeding may cause dry matter yield loss as well.