Insect Pest Management on Potatoes in Wisconsin |
Common terms and phrases
25 sweeps action threshold level adult and nymphal adult infestations adults/25 sweeps alfalfa Arlington August Burbank variety potatoes Cicadellidae cm² Colorado potato beetle CPB populations critical density cultivar defoliation Delong dinoseb distribution dynamic action threshold Econ egg mass Empoasca fabae Harris Entomol fenvalerate applications glycoalkaloids Granovsky Hibbs Homoptera hopperburn Hurst II-C infestation level insecticides instar instar larvae J.A. Wyman July June kg AI/ha larvae leaf sample unit leafhopper densities leafhopper on potatoes Leptinotarsa decemlineata Leptinotarsa decemlineata Say low infestation Medler mid-plant nymphal counts nymphal densities nymphal population nymphs nymphs/25 leaves observed oviposition peak Pest Management photosynthesis Pienkowski plant growth stages PLH adult PLH density PLH population PLH value population trends potato leafhopper potato plant potato yields potatoes in Wisconsin resistance respectively resulted Russet Burbank potatoes Russet Burbank variety sequential sampling plan significant yield reductions Simonet species studies Table I-B trichomes tuber Walgenbach and Wyman