Whole Leaves, Photosynthesis, Herbicide Penetration and Detoxification, Fluorometric M ethod The effect of herbicides that inhibit the photosynthetic electron transport at the photosystem II acceptor side has been analyzed in whole plants by using a fluorometric method. The data reported indicate that the apparent variable fluorescence o f the induction curve normalized to the control value pro...

Citation: Berger G, Graef F, Pallut B, Hoffmann J, Brühl CA and Wagner N (2018) How Does Changing Pesticide Usage Over Time Affect Migrating Amphibians: A Case Study on the Use of Glyphosate-Based Herbicides in German Agriculture Over 20 Years. Front. Environ. Sci. 6:6. doi: 10.3389/fenvs.2018.00006 How Does Changing Pesticide Usage Over Time Affect Migrating Amphibians: A Case Study on the Use...

Phenoxyacetic herbicides constitute one of the largest groups of herbicides sold in the world. Among them, since 1946, 2,4-Dichlorophenoxyacetic acid (2,4-D), whose structural formula is shown in Fig. 1, has been the most used. Nowadays, new formulations of 2,4-D are continuously made available. In fact, there are over 600 2,4-D products currently on the market. For over 60 years, 2,4-D has bee...

The rapid evolution of herbicide resistance poses a significant threat for conventional agricultural practices. In practice, herbicide resistance seems to be a very complicated problem to deal with. Extension can play a significant role in managing herbicide resistance educating farmers on the main advantages and disadvantages of the available methods aiming to control and minimize herbicide re...

Human society relies on surface freshwater ecosystems for many goods and services (drinking water, recreational facilities...), which places these systems at the center of a web of ecological, economic and political interests (Wilson & Carpenter, 1999). They are also being subjected to increasing pressure resulting from anthropogenic activities, including contamination by a variety of mineral a...

Canada thistle remains the most common and troublesome weed of pastures, roadsides and other areas of low-maintenance sods. Even though numerous herbicides have excellent activity on Canada thistle, the extensive root system of this species complicates longterm management. This paper will discuss recent research conducted in Alberta, Canada investigating the role of pasture fertilization in Can...

Photosynthesis is an essential part of the plant function and metabolism and a number of herbicides inhibit certain photosynthetic activities. The aim of this study was to evaluate the effect of some herbicides including Topik, Titos, Equip, Mister, Lumax, Bromicide and Oltima on the photosynthetic efficiency of three corn cultivars (CC-260, 400, 704) in response to salicylic acid (SA) treatmen...