Since the synthesis of 2,4-D, a number of other synthetic auxins have become commercially available. Although these products are referred to as growth regulators or phytohormones (previously known as plant hormones), they really represent only one group of growth regulators, the auxins. Auxins can be divided into six major groups; indole acids, naphthalene acids, phenoxy carboxylic acids, benzo...

As new herbicide-resistant crops come to market, it can be assumed that there will be a dramatic increase in use of 2,4-D and dicamba. Weed resistance could follow suit, and so a better understanding of the mechanism is urgently needed. In this issue of Journal of Experimental Botany (pages 3223–3235), Goggin et al. report on their analysis of 2,4-D resistance in wild radish. An elegant combina...

Abstract Three suspected resistant (R1, R2, and R3) corn marigold populations collected from winter cereal fields located in central Greece were studied to confirm elucidate the mechanisms of resistance acetolactate synthase (ALS) inhibitors their competitive ability against barley. Whole-plant dose–response assays proved that three R highly cross-resistant ALS tribenuron, pyroxsulam + florasul...

Abstract Herbicides with soil-residual activity have the potential for carryover into subsequent crops, resulting in injury to sensitive crops and limiting productivity if severe. The increased use of herbicides United States management troublesome weeds corn- soybean-cropping systems has result more cases carryover. Soil practices different effects on soil environment, potentially influencing ...

Abstract Stakeholders across the state of Nebraska, USA, were surveyed in 2019–2020 to assess problem weeds and weed management practices agronomic crops. A total 420 complete responses obtained four Nebraska districts (Northeast, Panhandle, Southeast, West Central). Accumulated state, 65.5% farmed or scouted crop ground was under no‐till production, with major crops being corn soybean represen...

The use of pre-emergence (PRE) herbicides is resurging as a standard practice for weed management in corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] the U.S. north-central region. increased PRE warrants investigation on impact spray carrier volume control. Field experiments were established at Arlington, WI, 2018 2019 Janesville, to evaluate influence control conventional tilled soybean...

BACKGROUND Human health anomalies have been associated with pesticide exposure for people living in rural landscapes in the northern Great Plains of North America. OBJECTIVE The objective of this study was to investigate the occurrence of 45 pesticides in drinking water from reservoirs in this area that received water primarily from snowmelt and rainfall runoff from agricultural crop lands. ...

Powering electrochemical technologies with renewable energies is a promising way to get more sustainable environmental remediation techniques. However, the operational conditions of those processes must be optimized undergo fast and efficient treatments. In this work, influence electrical hydraulic connections in performance set two electrolyzers directly powered by photovoltaic panels was eval...