National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Účinnost obranných opatření proti kůrovcům smrku ztepilého v porostech s diferencovaným kalamitním základem (revír Krasov, LS Město Albrechtice)
Valentová, Aneta
The effectiveness of countermeasures (pheromone traps or trap trees) and its combination in reliance with either spring or summer generation of spruce bark beetle in areas with differentiated calamitous base were surveyed in the summer of 2012--2014 in the district of Krasov, Forest Management of the town Albrechtice. During the spring swarm the combination with equal number of each countermeasure (50 TT /50 PT) seemed to be the most effective. In the summer swarm, the ratio with dominant number of trap trees (75 TT /25 PT) was more effective, closely followed by the ratio with dominant number of pheromone traps (25 TT /75 PT).
Uplatnění obranných opatření proti lýkožroutu smrkovému v podmínkách s diferencovaným kalamitním základem
Šotola, Vojtěch
Thesis examine efficiency of protective measures against Ips typographus in locality with different salvage basis. Using protective measures, pheromone traps and trap trees, was in localities using in different ratio, from all trap trees to all pheromone traps. Collecting data conducted in year 2011 and 2012 in forest district Vítkov, forest ward Dubová and Červená hora. From conducted research results, combination both protective measures are more effectiveness. Most effectives ratio can evaluate ratio from 75 % trap trees - 25 % pheromone traps. From two years is not do any clear decision to using in forest experience.

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