National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Sister broods in the northern bark beetle, Ips duplicatus Sahlberg
Doležal, Petr ; Davídková, Markéta
The report summarizes results of three years research on sister brood establishment in the northern bark beetle. The results are compared with current methodology of forest protection against bark beetles to increase the effectivity.
Cold resistance and overwintering survival in the northern spruce bark beetle, Ips duplicatus (Sahlberg.)
Doležal, Petr ; Davídková, Markéta
The study summarizes results on cold resistance and overwintering survival in the northern spruce bark beetle. The experiments were carried out in both outdoor (eight localities in the Czech Republic) and laboratory conditions in 2014, 2015 and 2016. Changes of levels of cryoprotective compounds, supracooling points and dessication of overwintering adults were assessed.\n

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