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See detailLa traçabilité
Schiffers, Bruno ULg

Book published by COLEACP (2011)

Au sens étymologique, la « traçabilité » est liée à la « trace » qui, au sens figuratif est une « marque laissée par un événement ». Tracer peut aussi signifier « indiquer la voie à suivre » ou encore « ... [more ▼]

Au sens étymologique, la « traçabilité » est liée à la « trace » qui, au sens figuratif est une « marque laissée par un événement ». Tracer peut aussi signifier « indiquer la voie à suivre » ou encore « marquer les contours ». Le mot « traçabilité », au sens de la possibilité d’identifier l’origine et de reconstituer le parcours (d’un produit), depuis sa production jusqu’à sa diffusion, est relativement récent1. Née dans le milieu des années 80, la traçabilité répondait alors à un simple souci logistique : elle garantissait un contrôle des flux de marchandises au sein d’une chaîne de partenaires, permettant de sérieuses économies. [less ▲]

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See detailExposure of several Belgian consumer groups to pesticide residues through fresh fruit and vegetable consumption
Claeys, Wendie L.; Schmit, Jean-François; Bragard, Claude et al

in Food Control (2011), 22(3-4), 508-516

The output of a pesticide surveillance program (detection frequency and number of exceeding measures) can lead to unnecessary concern among consumers since they lack information concerning the actual ... [more ▼]

The output of a pesticide surveillance program (detection frequency and number of exceeding measures) can lead to unnecessary concern among consumers since they lack information concerning the actual exposure. In this study, the exposure to pesticide residues through fruit and vegetable consumption is evaluated based on the 2008 surveillance data of the Belgian Federal Agency for the Safety of the Food Chain (FASFC). Results (deterministic and probabilistic approach) demonstrate that the chronic exposure of the adult population (>15 years) is generally under control, even at high or frequent consumption of fruit and vegetables. For most of the pesticide residues studied, the exposure is one hundred times lower than the ‘acceptable daily intake’ or ADI. With regard to children (2e5 years) who consume regularly or large amounts of fruit and vegetables, there are however, indications that for some pesticides the ADI can be exceeded. Nevertheless, due to the large uncertainty in these calculations, a more detailed study is required for this vulnerable group of consumers. In addition, it was demonstrated that washing and peeling of fruit and vegetables result in an exposure that is probably five to six times lower. [less ▲]

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See detailLutte biologique et protection intégrée
Schiffers, Bruno ULg; Wainwright, Henry

Learning material (2011)

Detailed reference viewed: 75 (15 ULg)
See detailProduire de façon durable et responsable
Schiffers, Bruno ULg; Samb, Babacar

Learning material (2011)

Detailed reference viewed: 38 (4 ULg)
See detailPrincipes d’hygiène et de management de la qualité sanitaire et phytosanitaire
Schiffers, Bruno ULg; Moreira, Christine

Learning material (2011)

Detailed reference viewed: 49 (5 ULg)
See detailRéglementation internationale et standards privés
Schiffers, Bruno ULg; Moreira, Christine

Learning material (2011)

Detailed reference viewed: 28 (3 ULg)
See detailSécurité des opérateurs et Bonnes Pratiques Phytosanitaires
Schiffers, Bruno ULg; Mar, Amie

Learning material (2011)

Detailed reference viewed: 38 (7 ULg)
See detailAnalyse des risques et autocontrôle en production
Schiffers, Bruno ULg; Samb, Babacar

Learning material (2011)

Detailed reference viewed: 51 (6 ULg)
See detailPrincipes d’hygiène et de management de la qualité sanitaire et phytosanitaire
Schiffers, Bruno ULg; Samb, Babacar; Knops, Jérémy

Learning material (2011)

Detailed reference viewed: 33 (5 ULg)
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See detailCAPACITY BUILDING OF ACP EXPERTS AND MIDDLE MANAGERS
Schiffers, Bruno ULg

in EDULEARN10 Conference (2010, July)

Detailed reference viewed: 27 (8 ULg)
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See detailEvaluation of realtime spray drift using RTDrift Gaussian advection-diffusion model
Lebeau, Frédéric ULg; Verstraete, Arnaud ULg; Schiffers, Bruno ULg et al

in Spanoghe, Pieter (Ed.) COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES (2009, May 19)

A spray drift model was developed to deliver real time information to the pesticide applicator. The sprayer is equipped with sensors to deliver real time measurement of operational parameters as spray ... [more ▼]

A spray drift model was developed to deliver real time information to the pesticide applicator. The sprayer is equipped with sensors to deliver real time measurement of operational parameters as spray pressure, boom height, horizontal boom movements and geolocalization. The spray droplet size spectrum as a function of pressure was characterized using PDI measurements. Wind speed and direction were measured using a sprayer mounted 2-D ultrasonic anemometer. For each successive boom position, a diffusion-advection Gaussian tilting plume model is used to compute the spray drift deposits downwind. Drift is computed independently for each droplet classes and each nozzle based on the operating parameters. Field trials were performed on a test plot in various wind conditions. The ground drift was measured for different drift distances using fluorimetry analysis. Results show that drift deposits are mainly affected by wind speed and direction what was correctly accounted for by the model. Short distance drift deposits values were overestimated by the model while long distance drift was underestimated. It appears that this most probably origins from embarked wind speed measurements and diffusion parameter. It is concluded that a treatment of embarked wind speed and diffusion measurement should be used to minimize these errors. [less ▲]

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See detailPlant protection at a crossroads in ACP countries
Schiffers, Bruno ULg

in Tunisian Journal of Plant Protection (2009), 4(1),

In Africa, and many other countries in the southern hemisphere (ACP - African, Caribbean and Pacific states), small farmers still practice subsistence farming, and the vast majority of producers of fruits ... [more ▼]

In Africa, and many other countries in the southern hemisphere (ACP - African, Caribbean and Pacific states), small farmers still practice subsistence farming, and the vast majority of producers of fruits and vegetables cultivate their crops over small plots of land, often for just a few weeks or a few months of the year. [less ▲]

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See detailFormaldehyde in cultivated mushrooms: a negligible risk for the consumer
Claeys, W.; Vleminckx, C.; Dubois, A. et al

in Food Additives & Contaminants (2009), 26(9), 1265-1272

Detailed reference viewed: 53 (8 ULg)
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See detailEnvironmental aspects in plant protection practices of non-agricultural pesticide users : case study of communes and the ministry of public works and transport (MET) of the Walloon region (Belgium)
Godeaux, Denis; Schiffers, Bruno ULg; Culot, Marc ULg

in Communications in Agricultural and Applied Biological Sciences (vol. 73) (2008)

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March ... [more ▼]

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March 2007, two surveys were conducted of 97 Walloon communes and 65 districts of the Walloon Ministry of Public Works and Transport (MET) (General Directorates for Motorways and Roads and for Waterway Infrastructure). The questionnaire (26 questions on six topics) was sent by e-mail or fax, with a response rate of 60 out of 97 communes and 33 out of 65 districts. This article describes the environmental aspects of the surveys (health-related aspects are the subject of separate article). The surveys have brought to light a number of good practices (including zero pesticides) and a growing awareness of environmental issues among non-agricultural users. However, bad habits, legislation infringements and a failure to follow good plant protection practice are still a problem and pose major environmental risks (in the form of water pollution from pesticides). Information, awareness-raising and training therefore remain a priority for nonagricultural users. [less ▲]

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See detailImpact of the plant protection practices on the operators' exposure: survey by the communes and ministry of equipment and transport (MET-RW)
Godeaux, Denis; Schiffers, Bruno ULg; Culot, Marc ULg

in Communications in Agricultural and Applied Biological Sciences (2008)

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March ... [more ▼]

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March 2007, two surveys were conducted of 97 Walloon communes and 65 districts of the Walloon Ministry of Public Works and Transport (MET) (General Directorates for Motorways and Roads and for Waterway Infrastructure). The questionnaire (26 questions on six topics) was sent by e-mail or fax, with a response rate of 60 out of 97 communes and 33 out of 65 districts. This article describes the health-related aspects of the surveys (environmental aspects are the subject of separate article). The surveys have brought to light a number of bad practices and a growing awareness of the non-agricultural users with respect to health risks. However, bad habits, legislation infringements and a failure to follow good plant protection practice are still a problem and pose major health risks (which endanger the operator and the public). Information, awareness-raising and, especially, training of people therefore remain a priority for nonagricultural users. [less ▲]

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See detailPesticides selectivity list to beneficial arthropods in four field vegetable crops.
Hautier, L.; Jansen, J. P.; Mabon, N. et al

in Abstracts 59th International Symposium on Crop Protection (2007, May 22)

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See detailInfluence of organic matter on bio-availability of carbosulfan and its toxicity on a carabidae
Hautier, L.; Jansen, J. P.; Mabon, N. et al

in Abstracts - 59the International Symposium on Crop Protection (2007, May 22)

Detailed reference viewed: 45 (8 ULg)
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See detailModelling spray drift using a modified air pollution Gaussian tilting plume model
Stainier, Charles; Destain, Marie-France ULg; Schiffers, Bruno ULg et al

Poster (2007)

The objective of this research is to evaluate a Gaussian tilting plume model that takes into account the spray characteristics of agricultural nozzles to predict drift. The application of this type of ... [more ▼]

The objective of this research is to evaluate a Gaussian tilting plume model that takes into account the spray characteristics of agricultural nozzles to predict drift. The application of this type of model has proved to be effective for aerial pollution applications. To be applied successfully to the spray drift, the model has to give accurate predictions of the deposits regarding the spray and material characteristics as well as the weather parameters. To reach this objective, the model parameters must be correctly set based on appropriate theoretical basis and experimental data. Based on wind tunnel measurements, the effect of the most important characteristics of spray droplets from an agricultural nozzle has been modelled using a Gaussian tilting plume approach by discretizing the different droplet classes. Although the theoretical basis of the model is simple, the predicted drift appeared to be in relatively good agreement with the experimental results. The discrepancies could be explained by poor fitting of the dispersion model parameters. Further work is required to optimise the value of the model parameters. [less ▲]

Detailed reference viewed: 46 (5 ULg)