Conventional soybean weed management and transgenic herbicide-tolerant management were examined to assess their effects on soybean insect pest populations in south Georgia in 1997 and 1998. Soybean variety had very little impact on the insect species observed, except that maturity group effects were observed for stink bug, primarily Nezara viridula (L.), population densities on some sampling da...

This paper presents a systematic diagnostic approach towards the characterization of herbicide resistance in a given weed population with regards to profile (single, multiple, cross resistance), magnitude (fold level), mechanism, and related bio-physiological aspects. Diagnosing herbicideresistant weeds can be achieved by crafting robust procedures for seed sampling, survey protocol and seed co...

The emergence of herbicide-resistant weeds is a major threat facing modern agriculture. Over 470 weedy-plant populations have developed resistance to herbicides. Traditional evolutionary mechanisms are not always sufficient to explain the rapidity with which certain weed populations adapt in response to herbicide exposure. Stress-induced epigenetic changes, such as alterations in DNA methylatio...

in 2007, an experiment was conducted at the farm of the college of agriculture, isfahan university of technology, in najaf abad (lavark), to study the effects of two pre-emergence herbicides (trifluralin and ethalfluralin) when combined with the three post-emergence herbicides setoxydim, cycloxydim and haloxyfop and the two post-emergence herbicides desmedipham and phenmedipham on weeds and the...

Weed control efficacy of three herbicides recently registered for use in the South African Sugar Industry is discussed and the phytotoxic effects on sugarcane are presented. Destun, with or without atrazine, is a safe pre-emergence treatment which is useful for the control of Cyperus esculentus, grasses and broadleaf weeds, while some activity on Cyperus rotundus has also been recorded. Dual + ...

abstract in order to study the sensitivity of seven crops to total herbicide soil residue, an experiment was carried out under controlled conditions in 2009 at the college of agriculture, ferdowsi university of mashhad-iran. in this study 7 crops (pea, bean, lentil, corn, rape, beet and tomato), across 7 simulated soil residual concentration of total herbicide (0, 0.0002, 0.0005, 0.001, 0.002, ...

Nowadays only five global corporations operate herbicide discovery programs. In response to this industry consolidation, few new discoveries and evolution of resistant weed populations there has been the very recent emergence currently nineteen small start-up companies focused on discovery. This diversity focus in start-ups is hoped result innovative that needed counter major resistance species...