Grass growth in different parts of England in relation to invertebrate numbers and pesticide treatment
作者： I. F. HENDERSON , R. O. CLEMENTS
DOI: 10.1111/J.1365-2494.1977.TB01418.X
关键词:
摘要: Ryegrass swards at fourteeo widely separated sites in England were assessed for yield, botanical composition and invertebrate populations, with without insecticide treatment during a 4-year period. Treatment reduced the numbers of almost all groups sampled increased grass growth some time but one site. Annual DM output was by 0–32% depending upon site concerned. Evidence is presented which suggests that yield increases due to suppression aphids, plant-sucking bugs, stem-boring fly larvae, perhaps nematodes.
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