Soybean mosaic virus (SMV; Genus Potyvirus; Family Potyviridae), one of the most widespread viruses in soybean (Glycine max [L.] Merr), can be effectively managed by deployment of resistance. Hutcheson, one SMV-resistant cultivar, is widely used in the MidSouth region and carries an Rsv1 allele for resistance to SMV pathotypes G1-G3, the common strains in US soybean fields. Recently, resistance...

Common ragweed (Ambrosia artemisiifolia L.) is an extremely competitive broadleaved summer annual weed found in Christmas tree production systems within Michigan. has been reported to have resistance glyphosate, PSII inhibitors, PPO and ALS herbicides. There reports from Michigan growers of common clopyralid, a synthetic auxin herbicide, Montcalm County, The objective this study was test altern...

experiment was conducted in 2011 to evaluate the efficacy of reduced herbicide rates in combination with false seedbed for selective weed control in common bean. the experiment was carried out with a completely randomized factorial design. factors were herbicide dose (post-emergence application of imazethapyr at the rates of 0, 25, 50, 75, and 100 g a.i. ha-1) and seedbed preparation (false see...

Genetic modification of crop plants has promoted concerns about potential environmental effects of this new technology. In this essay, I will discuss the environmental effects of genetic modification of crop plants using herbicide resistance as an example. Considering herbicide resistance as an old agricultural trait, it is difficult to find any reason to assess the environmental risks of genet...

The results of seven pre-emergence herbicide screening trials involving 27 chemicals are presented. The experiments, which were conducted over a fouryear period, differed with respect to soil moisture conditions, soil type and prevailing weed flora. Special attention was directed to the control of Cyperus esculentus, C. rotundus and grasses. Mean visual assessmenlts of control of species or spe...

Glyphosate is the number one herbicide in the world. We investigated the sub-lethal effects of this herbicide on the aphid Metopolophium dirhodum (Walker), using an age-stage, two-sex life table approach. Three concentrations of the herbicide (low - 33.5, medium - 66.9 and high - 133.8 mmol dm(-3) of active ingredient) and distilled water as the control were used. The LC50 of the IPA salt of gl...

A field experiment was conducted at ICAR- Indian Institute of Soil Science (IISS), Bhopal (Madhya Pradesh) to evaluate the impact different levels crop residue retention and herbicidal weed control measures on dynamics, growth yield characteristics chickpea under conservation agriculture. Data were recorded study, characters chickpea. Results indicate that pre-emergence herbicide application tr...

The species Rottboellia exaltata L. (itchgrass) has become an important weed in cultivated areas, requiring management studies to enhance its control. This study aimed evaluate the effectiveness of herbicides pendimethalin (1200 g ha−1), clomazone (1000 indaziflam (100 and trifluralin (900 ha−1) applied pre-emergence association with diquat (400 glyphosate (1175 addition their isolated applicat...

Some troublesome weeds such as Ambrosia artemisiifolia have led farmers to adopt herbicide-tolerant varieties (HTVs) in cultivated sunflower fields. Agricultural practices associated with the use of HTVs raised concerns among public authorities, prompting recommendation monitor potential effects on biodiversity. In this context, we surveyed vegetation 239 fields and their margins three French r...

Worldwide, herbicides remain the most efficient technology for large-scale weed control. Therefore, the widespread evolution of herbicide resistance in weed populations within intensive crop production systems is a major threat to the sustainability and profitability of cropping systems. The introduction of new herbicides and herbicide modes of action to replace those herbicides failing due to ...