Field experiments were conducted at the North Central Agricultural Research Station in Fremont, OH in 2009 and 2010 to evaluate the tolerance of tomato to fomesafen and the efficacy of this herbicide on weed control. The crop was machine-transplanted in June 5, 2009 and June 3, 2010. Herbicide treatments were applied using a CO2 pressurized (276 kPa) backpack sprayer with 8002VS nozzle tips delivering 234 L ha(-1). Pre-transplant (PRETP) treatments were applied on June 4, 2009, and May 27, 2010. Treatments included fomesafen at 280, 350, 420, 560, and 840 g ai ha(-1). Minimal crop injury was observed 7 and 14 d after treatment (DAT) in plots treated with fomesafen at 840 g ha(-1) both years. None of the treatments caused crop injury either year at 42 DAT. Fomesafen at the highest rate provided acceptable annual grass, common purslane, and redroot pigweed control 42 DAT. Tomato yield was not reduced by the application of fomesafen. Registration of fomesafen herbicide would provide tomato growers an opportunity to control weeds caused by late emergence or poor initial control following a burndown herbicide application in tomato.
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机译：2009 年和 2010 年在俄亥俄州弗里蒙特的中北部农业研究站进行了田间试验，以评估番茄对福美沙芬的耐受性以及这种除草剂对杂草控制的功效。该作物于2009年6月5日和2010年6月3日进行机器移植。使用CO2加压（276 kPa）背包式喷雾器进行除草剂处理，喷嘴尖端为8002VS，可提供234 L ha（-1）。2009 年 6 月 4 日和 2010 年 5 月 27 日进行了移植前 （PRETP） 治疗。治疗包括 280、350、420、560 和 840 g ai ha（-1） 的福美沙芬。在处理后 7 天和 14 d（DAT）观察到，在用 840 g ha（-1） 的福美沙芬处理的地块中，作物损伤最小。在42 DAT时，任何一年的处理都没有造成作物伤害。 Fomesafen以最高的速率提供了可接受的一年生草，普通马齿苋和红根猪草控制42 DAT。 番茄产量没有因福美沙芬的施用而降低。福美沙芬除草剂的注册将为番茄种植者提供一个机会，以控制在番茄中施用燃尽除草剂后因出苗晚或初始控制不佳而引起的杂草。
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