Wine view April 2019
The confusion is perfect
If you are currently walking through the vineyards you can see in many rows of vines strange "jewelry" hanging on the freshly turned vines.
The brown ampoules are so-called pheromone dispensers. They are the basis of the biological grape berry control practiced for several years. The dispensers contain pheromones, ie sexual perfumes of the female grape winder. These fragrances flow very slowly throughout the summer. This is how it smells like grape moths in the entire vineyard category and the poor males are confused, because it smells all over the female sex, that they no longer find a female. So it can come to no mating more, there are no fertilized eggs stored and the grape moths have no more offspring.
About one third of the vineyards in Rheinhessen are full of the fragrance of grape moths. Since not only the vineyards themselves must be hung, but also surrounding trees, a lot of the ampoules must be hung. Each dispenser scents about 20 square meters, which is equivalent to almost 4 million dispensers to hang. Of course, the winemakers do not do it alone, they were supported by sports clubs, school classes, etc.
The winemakers now appeal to walkers and cyclists in the vineyards to hang the pheromone ampoules. Only then will a nationwide effectiveness be ensured. The pheromones do not seem to work in your home garden or bedroom anyway ...