Extensive research has been conducted regarding the occurrence of herbicides in the hydrologic system, their fate, and their effects on human health and the environment. Few studies, however, have considered herbicide transformation products (degradates). In this study of Iowa ground water, herbicide degradates were frequently detected. In fact, herbicide degradates were eight of the 10 most fr...

The identification of herbicide residues on crop foliage is necessary to make crop-management decisions for weed pest control and to monitor pesticide residue levels on food crops. Electronic-nose (e-nose) methods were tested as a cheaper, alternative means of discriminating between herbicide residue types (compared with conventional chromatography methods), by detection of headspace volatiles ...

In order to investigate physiological and biochemical changes of wheat under stress residue of Imazethapyr herbicide (Imazethapyr), an experiment was conducted in a completely randomized design with four replications in greenhouse conditions at university of Mohaghegh Ardebili. The treatments consisted of five dose levels of herbicide Imazethapyr (0, 0.011, 0.022, 0.033 and 0.044 micrograms of ...

The research on evaluating the biological efficiency of Lifeline, WS herbicide (glufosinate ammonium, 280 g/l), UPL Holdings Ltd, Netherlands, was carried out in field experiments near trunk lanes apple garden.
 It’s established that with a three time application to fruit plants dose 1,1 and 1,8 l/ha showed high against perennial annual weeds (100 %). By harvesting garden were free weed pl...

Herbicide (±)-thaxtomin A has been synthesized in a one-pot process with a 32% isolated yield. A multicomponent coupling reaction was utilized to prepare in situ a dipeptide precursor which then sequentially underwent an alkaline mediated keto-amide cyclization to provide the target molecule. Adjustment of diastereoselectivity was achieved using microwave-induced irradiation. The approach incor...

Herbicide use is among the most criticized aspects of modern farming, especially as it relates to genetically engineered (GE) crops. Many previous analyses have used flawed metrics to evaluate herbicide intensity and toxicity trends. Here, I show that herbicide use intensity increased over the last 25 years in maize, cotton, rice and wheat. Although GE crops have been previously implicated in i...