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pro vyhledávání: '"D. J. Morisak"'
Autor:
D. J. Morisak, D. E. Simonet
Publikováno v:
Journal of Economic Entomology. 75:43-46
Insecticide efficacy against diamondback moth, Plutella xylostella (L.), imported cabbageworm, Pieris rapae (L.), and cabbage looper, Trichoplusia ni (Hubner), on cabbage was investigated, using a threshold of 0.5 total larva per plant as a basis for
Publikováno v:
Journal of Economic Entomology. 77:476-482
Management programs involving the use of action thresholds to initiate insecticide treatments for controlling the complex of cabbage-feeding lepidopterous larvae were evaluated in comparison with a standard weekly spray program. Use of thresholds of
Publikováno v:
Insecticide and Acaricide Tests. 7:73-73
Cabbage was direct seeded on Jul 1, at the O.A.R.D.C. Vegetable Crops Branch in Fremont, OH. Rows were on 0.76 m centers and plants were later thinned to a 0.3 m in-row spacing. Treatment plots consisted of single 9.1 m rows, separated on either side