Efficacy of Pheromone Traps/Yellow and Blue Sticky Panels and other Biological Methods to Fight against Western flower Thrips at Offer Madsen Gartneriet A/S Glamsbjerg, Denmark

Melinda Varga, Ion Oltean, Teodora Florian


Many chemical and biological options exist to help manage pests and maintain healthy, productive garden plants, green plats, decorative flowers. Understanding some of the differences between chemical and biological alternatives can help to choose the best pest management approach for the problems at hand. Since the 1970s Frankliniella occidentalis has successfully invaded many countries to become one of the most important agricultural pests of ornamental, vegetable and fruit crops globally. Its invasiveness is largely attributed to the international movement of plant material and insecticide resistance, both of which have combined to foster the rapid spread of the species throughout the world. Individuals are very small and they reside in concealed places on plants; thus are easily hidden and hard to detect in transported plant material. They reproduce rapidly and are highly polyphagous, breeding on many horticultural crops that are transported around the world. Because this pest is causing a lot of damages in protected areas but also in open spaces is very important to find the more efficient methode to combate. This pest has raised great problems, and in order to prevent we used biological methods like natural predators (Amblyseius cucumeris and swirski) Nematoder, Nemazal and yellow sticky blue sticky traps. Aim of this study is to define the efficiency against Heliothrips haemorrhoidalis and Frankliniella occidentalis of the biological methods like use of natural predators, Nematoder treatments, Nemazal, pheromonal traps and use of colored traps in a protected area in Denmark, at Gartneriet Offer Madsen A/S, to analyze differences between simple glued yellow and blue traps and a combination of this with pheromone traps.


damages, frowers, health, pests.

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