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National Repository of Grey Literature 11 records found  previous11 - 11  jump to record: Search took 0.00 seconds. 
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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