Crop Protection Between Sciences, Ethics and Societies: From Quick-Fix Ideal to Multiple Partial Solutions

Crop protection has a very long history during which new methods have been developed whilst, at the same time, the older ones have retained their usefulness in certain conditions. The diversity of agricultural land and production has meant that it was futile to search for a unique and definitive approach or technical solution and, instead, the central concept has always been one of integration, during all the period of pre-Green Revolution and again today within what we call a sustainable agriculture. On a global level, it would seem that the current situation does not fundamentally contradict this idea. Nevertheless, in recent years (since the Second World War), two important advances, presented as the definitive solutions to problems and potentially exceeding previously less effective ones, have led to this integrative approach being questioned. These are agrochemistry and agro-genetics. We will detail, here, the agro-environmental limits of these two “miracle solutions,” followed by a review from an ethical and an epistemological point of view. This enables us to demonstrate the relevance of integrated approaches in agriculture and leads to a definition of crop protection that forms part of a strong approach in sustainable development. By changing the semantics, the epistemic position and our vision of production, we arrive at the proposal of sustainable agriculture.     

Legal and Ethical Apprehensions Regarding Relational Object. The Case of Genetically Modified Fish

This paper is the result of a contribution between ethics and law, which will be used as thought-process tools, to address the complex issue of legal and ethical statuses of GM fish. To find answers, we propose to consider this issue from a wider angle, looking at the relations between the human, animal, and living worlds. We show that it is possible to construct other forms of intellectual logic that, without setting these worlds in opposition, do not lapse into relativism where boundaries are blurred. In this sense, we submit the hypothesis that ordered pluralism should help us to move past a mere Man–Animal relationship to reveal the entire complexity of relationships within mankind and between mankind and other (non-human) worlds alongside it and to which it belongs: the animal and living worlds. With this new logic, “animal ethics” and “animal law” are re-embedded into a set of relationships. This logic emerges from a new consideration: the nature of the contemporary objects we are dealing with. We shall call objects like genetically modified fish “relational objects” in the sense that in order to be apprehended, they utilize a set of relationships of which there are just as many as the dimensions forming them, not as predicates but as primary constituents. Experimentally, in the case of GM fish, we translate this by proposing to typologize legal and ethical considerations induced by multiple relations connected to this object. According to the type of relationship in question, the GM fish will not have the same status; it is a changing object that must be suitably apprehended.     

Effects of the mixture of diquat and a nonylphenol polyethoxylate adjuvant on fecundity and progeny early performances of the pond snail Lymnaea stagnalis in laboratory bioassays and microcosms

Effects of the bipyridylium herbicide diquat and tank-mix adjuvant Agral((R))90 were investigated on various life history traits of the freshwater pulmonate snail Lymnaea stagnalis. Trait expression was measured in simple laboratory bioassays on small size groups of snails, and under more complex, indoor microcosm conditions, on larger groups of snails. Microcosms were provided with sediment, plants, and fish, thus allowing a more complex level of intra and inter-specific interactions to develop. Treatments were performed with substances alone or in mixture, at concentrations ranging from 4.4 to 222.2mugl(-1) for diquat, and from 10 to 500mugl(-1) for Agral 90, under a fixed ratio design. Adult growth was negatively affected by diquat and its mixture with Agral 90 both at the highest concentrations (222.2 and 500mugl(-1), respectively). Fecundity expressed differently in bioassays and microcosms, but no effect of the chemicals could be observed on this trait. Progeny development was impaired by 222.2mugl(-1) diquat and its mixture with 500mugl(-1) Agral 90, as reflected by longer development time and reduced hatching rate of clutches laid by the exposed animals, as compared to the controls. Hatching data suggested that diquat bioavailability was lower in microcosms than under bioassay conditions. Consistently, chemical analysis showed that diquat disappeared more rapidly from the water in microcosms than in bioassays. Moreover, the differential expression of several life history traits under bioassays and microcosms conditions was probably also influenced by the level of intraspecific interaction, which differed among the systems. When significant, the effect of diquat was attenuated by the presence of Agral 90, indicating antagonistic interaction between the two substances. Such a deviation from additivity was partly validated statistically.     

Aquatic and terrestrial ecotoxicology considering the soil:water continuum in the Anthropocene context

Environmental Science and Pollution Research -