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首页> 外文期刊>Weed Technology: A journal of the Weed Science Society of America >Spray adjuvants influence bispyribac-sodium efficacy for annual bluegrass (Poa annua) control in cool-season turf grass
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Spray adjuvants influence bispyribac-sodium efficacy for annual bluegrass (Poa annua) control in cool-season turf grass

机译：喷雾助剂会影响凉季草皮草中一年生禾本科草的双嘧菌钠的功效

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摘要

Field and laboratory experiments were conducted in New Jersey to investigate the influence of spray adjuvants on foliar absorption and efficacy of bispyribac-sodiurn on annual bluegrass, creeping bentgrass, and perennial ryegrass. In laboratory experiments on annual bluegrass, C-14-bispyribac-sodium without an adjuvant had 25% foliar absorption by 8 h after treatment, whereas absorption increased to 45, 46, and 75% when applied with crop oil concentrate, nonionic surfactant, and methylated seed oil, respectively. In creeping bentgrass fairways, sequential bispyribac-sodiurn applications at 37 g ai/ha with spray adjuvants controlled annual bluegrass similarly to 74 g ai/ha applied sequentially without adjuvants. In perennial ryegrass, treatments with methylated seed oil and nonionic surfactant required 25 and 41 % lower bispyribac-sodium rates, respectively, to obtain annual bluegrass control levels comparable to bispyribac-sodium rates without adjuvants. Spray adjuvants did not exacerbate turf-grass discoloration from bispyribac-sodium. Overall, spray-adjuvant use with bispyribac-socliurn may allow practitioners to reduce application rates and enhance efficacy for annual bluegrass control.
机译：在新泽西州进行了野外和实验室实验，以调查喷雾助剂对双草皮-地龙对一年生早熟禾，bent草和多年生黑麦草的叶吸收和功效的影响。在一年生禾本科植物的实验室实验中，无佐剂的C-14-双嘧菌钠在处理后8小时的叶吸收为25％，而与农作物油浓缩物，非离子表面活性剂和植物油一起使用时，吸收增加至45、46和75％。甲基化种子油。在蠕动的草丛球道中，连续喷施双草梨-地龙的剂量为37 g ai / ha，喷雾助剂控制的一年生禾本科草，与连续施用74 g ai / ha的无佐剂的顺序相似。在多年生黑麦草中，用甲基化的种子油和非离子表面活性剂进行处理分别需要比草皮比巴钠降低25％和41％的双草皮比纳水平，才能获得与没有佐剂的双草皮比钠相比的年度草皮控制水平。喷雾佐剂不会加剧双嘧哌酸钠对草皮草的变色。总体而言，喷鼻辅助剂与双嘧菌酯-沙丁草酯一起使用可能使从业人员降低施药率并增强蓝草的年度防治效果。

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