Pintoi peanut is a warm-season perennial legume that shows promise as a forage crop for the southeastern United States, however, little is known about the proper methods of weed management during establishment for this species. The objective of this study was to determine the ability of pintoi peanut to tolerate applications of PRE and POST herbicides during the year of and year after planting. The effects of herbicide treatments on percentage of visual estimates of injury and stand counts of pintoi peanut were investigated at Ona and Marianna, FL, in 2015 and 2016. All PRE herbicides did not result in significant injury or stand reduction. Pintoi peanut’s tolerance to POST herbicides was higher when plants were emerged for at least 2 wk prior to herbicide application. Stands of pintoi peanut that were planted the previous year appear to tolerate all herbicides examined in this work, except sulfosulfuron. Results of this study indicate that at the year of planting pintoi peanut is tolerant to PRE applications of pendimethalin, imazethapyr, and imazapic. Pintoi peanut appears to tolerate applications of 2,4-D, carfentrazone, imazapic and imazethapyr the year after planting at the rates utilized in this study. Future research should evaluate the effects of multiple herbicide applications and tank-mixes to obtain satisfactory weed control and selectivity in pintoi peanut swards.

中文翻译：

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pintoi花生对PRE和POST除草剂的耐受性

Pintoi 花生是一种暖季多年生豆科植物，有望成为美国东南部的草料作物，但是，对于该物种在建立过程中的正确杂草管理方法知之甚少。本研究的目的是确定 pintoi 花生在种植当年和种植后一年耐受 PRE 和 POST 除草剂应用的能力。2015 年和 2016 年，在佛罗里达州的奥纳和玛丽安娜调查了除草剂处理对视觉估计伤害百分比和 pintoi 花生林分计数的影响。所有 PRE 除草剂均未导致显着伤害或林分减少。当植物在除草剂施用前至少 2 周出现时，Pintoi 花生对 POST 除草剂的耐受性更高。前一年种植的 pintoi 花生林似乎可以耐受本研究中检测到的所有除草剂，但磺胺嘧啶除外。这项研究的结果表明，在种植 pintoi 花生的那一年，对二甲戊灵、咪草烟和灭草烟的 PRE 应用具有耐受性。Pintoi 花生似乎可以在种植后一年以本研究中使用的比率耐受 2,4-D、卡芬曲松、咪草烟和咪草烟。未来的研究应评估多种除草剂应用和桶混的效果，以获得满意的斑托花生片杂草控制和选择性。Pintoi 花生似乎可以在种植后一年以本研究中使用的比率耐受 2,4-D、卡芬曲松、咪草烟和咪草烟。未来的研究应评估多种除草剂应用和桶混的效果，以获得满意的斑托花生片杂草控制和选择性。Pintoi 花生似乎可以在种植后一年以本研究中使用的比率耐受 2,4-D、卡芬曲松、咪草烟和咪草烟。未来的研究应评估多种除草剂应用和桶混的效果，以获得满意的斑托花生片杂草控制和选择性。