title: Realistic global scouting for pests and diseases on cut rose crops.
abstract: Scouting is considered an essential component of integrated pest management strategies, but most of the techniques, which involve visual assessment, remain too time-consuming for application on a commercial scale. The global scouting method proposed here for greenhouse rose (Rosa spp.) crops combines several rapid visual methods for common pests and diseases, in a single sampling process. A 2-min observation time per sampling unit is required, with two observers. The sampling unit consists of a single stem with its flower and the corresponding basal foliage. A 90-unit regular grid (1 U/6.4 m2) was used, with weekly assessments, including a spatial distribution approach, for pest monitoring. Different grid sizes were simulated and tested with reference data, to determine whether to decrease the number of sampling units. A grid size of 1 U/21 m2 was found to be acceptable, with no significant loss of information. A more realistic and cheaper sampling strategy of this type is more likely to be accepted by growers, increasing the efficiency of crop monitoring and leading to more rational decisions.
authors.affiliation: INRA-URIH, UR880, 400 route des Chappes, BP 167, 06903 Sophia Antipolis Cedex, France. alexandre.bout@sophia.inra.fr
authors.forename: Alexandre
authors.initials: A
authors.lastname: Bout
authors.forename: Roger
authors.initials: R
authors.lastname: Boll
authors.forename: Ludovic
authors.initials: L
authors.lastname: Mailleret
authors.forename: Christine
authors.initials: C
authors.lastname: Poncet
mesh_terms: D000818:Animals; D035264:Flowers / Q000469:parasitology; D007300:Insect Control / Q000379:methods*; D007313:Insecta; D008925:Mites; D010935:Plant Diseases; D011157:Population Dynamics; D027826:Rosa / Q000469:parasitology*