Publication Date
1997
Description
High numbers of various arthropods early in the season, especially thrips, mites, and grass plant bugs, were associated with silvertop injury in six grass seed fields in Saskatchewan in 995. Insect numbers in sweep samples were frequently suppressed for one or two weeks in plots sprayed with an insecticide. Four fields had low levels of arthropods early in the season andoelow incidence of silvertop later on. In a field of Russian wildrye grass with high arthropod populations, seed yield was highest in plots that had been sprayed with insecticide prior to the boot stage of grass growth. In one field of Kentucky bluegrass with moderate silvertop levels, plots that had been burned the previous autumn had higher yields than those that had been scalped (closely mowed) and the residue removed, or that had been mowed and the residue left on the plots.
Citation
Soroka, J J.; Gossen, B D.; and Coulman, B E., "Arthropods, Silvertop, and Grass Seed Yields" (2024). IGC Proceedings (1993-2023). 14.
https://uknowledge.uky.edu/igc/1997/session25/14
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Arthropods, Silvertop, and Grass Seed Yields
High numbers of various arthropods early in the season, especially thrips, mites, and grass plant bugs, were associated with silvertop injury in six grass seed fields in Saskatchewan in 995. Insect numbers in sweep samples were frequently suppressed for one or two weeks in plots sprayed with an insecticide. Four fields had low levels of arthropods early in the season andoelow incidence of silvertop later on. In a field of Russian wildrye grass with high arthropod populations, seed yield was highest in plots that had been sprayed with insecticide prior to the boot stage of grass growth. In one field of Kentucky bluegrass with moderate silvertop levels, plots that had been burned the previous autumn had higher yields than those that had been scalped (closely mowed) and the residue removed, or that had been mowed and the residue left on the plots.
