Procjena boje i visine feromonske klopke iznad zemlje za ulov Ips sexdentatus i Thanasimus formicarius

Abstract

Šesterozubi borov potkornjak Ips sexdentatus jedan je od najrazornijih potkornjaka u euroazijskim borovim šumama. Za praćenje populacija Ips sexdentatus koriste se feromonske klopke. U ovom radu istraživali smo utjecaj boje i visine klopki na ulov Ips sexdentatus i njegovog predatora Thanasimus formicarius. Istraživanje je provedeno u sastojinama Pinus sylvestris unutar Yayla Forest Enterprise Chief (Kastamonu-Daday) u Turskoj. U području istraživanja koristili smo 25 skandinavskih klopki s tri lijevka u pet različitih boja (žute, bijele, zelene, crne i crvene klopke). Klopke su postavljene na istu visinu, 1,5 m iznad zemlje. U drugom dijelu istraživanja postavljeno je ukupno 20 klopki (5 po visinskoj kategoriji) na visine od 1,0 m, 1,5 m, 2,0 m, i 2,5 m iznad zemlje. Klopke smo kontrolirali u intervalima od 7-10 dana i izbrojali smo jedinke Ips sexdentatus i T. formicarius. Dobiveni podaci su obrađeni Kruskal-Wallisovim testovima i testovima višestrukih usporedbi. Rezultati ispitivanja su sljedeći: 1) Značajne razlike u broju ulova u odnosu na boju klopki, 2) Postoji značajan i pozitivni odnos između štetnika i predatora, 3) Nisu utvrđene značajne razlike u broju uhvaćenih jedinki Ips sexdentatus i T. formicarius u odnosu na visine klopki.

The six-toothed pine bark beetle Ips sexdentatus is one of the most devastating bark beetles of Eurasian pine forests. Pheromone traps are used to monitor and control Ips sexdentatus populations. In this study, the effect of trap color and trap height on the capture of Ips exdentatus and its predator the ant beetle Thanasimus formicarius was investigated. The research was conducted in Pinus sylvestris stands within Yayla Forest Enterprise Chief (Kastamonu-Daday) in Turkey. In the study area, 25 Scandinavian type three-funnel traps of 5 different colors (yellow, white, green, black, and red traps with five replications) were used. Traps were placed at the same height, 1.5 m above ground. For the second part of the study, a total of 20 traps (5 per height category) was placed 1.0 m, 1.5 m, 2.0 m, and 2.5 m above ground. Traps were controlled at intervals of 7-10 days and captured Ips exdentatus and Thanasimus formicarius were counted. The results of the study were as follows: 1) Significant differences in the number of captures by trap color, and 2) No significant differences in the numbers of Ips sexdentatus and Thanasimus formicarius captured between the trap heights.