| Title: | Suspension of pheromone microcapsules on vine leaves acting as passive dispensers against pests |
| Author(s): | Desauziers V; Sicre E; Vignau-Laulhere J; Bourrigaud S; Plaisance H; |
| Address: | "IPREM, IMT Mines Ales, Universite de Pau Et Des Pays de L'Adour, E2S UPPA, CNRS, Pau, France. valerie.desauziers@mines-ales.fr. M2i Development, Batiment ChemStart'Up Pole 2, 2 allee Le Corbusier, Lacq, France. IPREM, IMT Mines Ales, Universite de Pau Et Des Pays de L'Adour, E2S UPPA, CNRS, Pau, France" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-021-16878-9 |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Pheromones are increasingly used as alternatives to pesticides to protect vineyards against L. botrana, a key grape pest. To diffuse (7E,9Z)-7,9-dodecadien-1-ylacetate, the L. botrana pheromone, passive, or aerosol dispensers are commonly applied. This paper deals with another method based on spraying an aqueous formulation, Lobesia Pro Spray, containing the pheromone encapsulated in a resin. The objectives were to assess the ability of vine leaves to act as pheromone dispensers and to check that encapsulation protects the plant from pheromone penetration. Laboratory testing based on an emission cell combined with airborne pheromone measurements by active sampling on sorbent tubes followed by ATD-GC-MS analysis was developed to accurately characterise the release of the pheromone into the air. Release kinetics analysis performed on the vine leaves showed a high pheromone release (about 30% of the sprayed quantity) the first day of the test. The release rate then decreased rapidly to reach about 650 mg/day/ha after 4 days. Kinetic modelling showed that it would be possible to maintain an effective airborne concentration of pheromone for approximately 12 days. Release tests were also carried out on glass, PVC and blotting paper. The results obtained showed that the vine leaves behaved as a non-absorbent material, implying that the pheromone used in the Lobesia Pro Spray formulation did not penetrate the plant. These first results prove the feasibility of using vine leaves as pheromone dispensers for a sprayed formulation and the ability to optimise the treatment conditions (dose and frequency) through laboratory testing" |
| Keywords: | "Animals Capsules Insect Control *Moths Pest Control, Biological Pheromones Plant Leaves *Sex Attractants Sexual Behavior, Animal Adsorption Environmental chamber Gc-ms Grapevine moth control Laboratory testing Release kinetics Spray formulation Volatile s;" |
| Notes: | "MedlineDesauziers, Valerie Sicre, Elodie Vignau-Laulhere, Jane Bourrigaud, Sylvain Plaisance, Herve eng Germany 2021/10/09 Environ Sci Pollut Res Int. 2022 Feb; 29(10):14975-14986. doi: 10.1007/s11356-021-16878-9. Epub 2021 Oct 8" |
