Evaluating the effectiveness of installations for monitoring and control of Ips cembrae (Heer)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F23%3A43923927" target="_blank" >RIV/62156489:43410/23:43923927 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.26202/sylwan.2023029" target="_blank" >https://doi.org/10.26202/sylwan.2023029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.26202/sylwan.2023029" target="_blank" >10.26202/sylwan.2023029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluating the effectiveness of installations for monitoring and control of Ips cembrae (Heer)

Popis výsledku v původním jazyce

The large larch bark beetle Ips cembrae (Heer) is the primary pest of Larix decidua Mill., and local outbreaks have been recorded in Europe. In 2020, the effectiveness of trap trees, tripods, poisoned tripods, and slots traps against I. cembrae was evaluated. The research was carried out at 3 sites with larch monocultures with differing I. cembrae population density. All four installations were set up at each study site in 4 replicates. Trap trees and tripods were installed in two series (Series 1 to capture the overwintering generation and Series 2 for summer generations of I. cembrae) with the recording of the numbers of nuptial chambers, maternal galleries, and the stage of I. cembrae development occurring in the center of all logs forming the tripods and in the 4 control sections in the trap tree. Poisoned tripods were installed and treated with a 1% solution of Vaztak insecticide every month. Both the poisoned tripods and slot traps (Theysohn) were baited with Cembräwit pheromone lure, and the lure was reapplied after 8 weeks. The poisoned tripods and slot traps were checked at 14 day intervals. The number of I. cembrae adults was determined from samples stored in 75% ethanol. The flight activity of I. cembrae (from 15 AprilMINUS SIGN 30 September) confirmed the presence of two generations. Trap trees captured a significantly larger number of adults than tripods in both the overwintering and summer generations of I. cembrae. Trap trees were infested throughout the trunk profile, while I. cembrae did not occur on 26% of tripod logs. We found that I. cembrae mostly infested larch trunks from 6 cm in diameter and infestation density increased with increasing trunk diameter. The poisoned tripods captured more adults of both the overwintering and summer generations of I. cembrae than the slot traps. The sex ratio of I. cembrae was determined on traps and tripods from the number of maternal galleries on nuptial chambers, while in slot traps and on poisoned tripods it was established by the dissection of captured adults. The number of females on the trap trees and tripods was significantly higher than in the slot traps and on the poisoned tripods. In the slot traps and on the poisoned tripods, the number of females and males was equal. All installations were found to be effective and can be used in forest protection of larch against I. cembrae.

Název v anglickém jazyce

Evaluating the effectiveness of installations for monitoring and control of Ips cembrae (Heer)

Popis výsledku anglicky

The large larch bark beetle Ips cembrae (Heer) is the primary pest of Larix decidua Mill., and local outbreaks have been recorded in Europe. In 2020, the effectiveness of trap trees, tripods, poisoned tripods, and slots traps against I. cembrae was evaluated. The research was carried out at 3 sites with larch monocultures with differing I. cembrae population density. All four installations were set up at each study site in 4 replicates. Trap trees and tripods were installed in two series (Series 1 to capture the overwintering generation and Series 2 for summer generations of I. cembrae) with the recording of the numbers of nuptial chambers, maternal galleries, and the stage of I. cembrae development occurring in the center of all logs forming the tripods and in the 4 control sections in the trap tree. Poisoned tripods were installed and treated with a 1% solution of Vaztak insecticide every month. Both the poisoned tripods and slot traps (Theysohn) were baited with Cembräwit pheromone lure, and the lure was reapplied after 8 weeks. The poisoned tripods and slot traps were checked at 14 day intervals. The number of I. cembrae adults was determined from samples stored in 75% ethanol. The flight activity of I. cembrae (from 15 AprilMINUS SIGN 30 September) confirmed the presence of two generations. Trap trees captured a significantly larger number of adults than tripods in both the overwintering and summer generations of I. cembrae. Trap trees were infested throughout the trunk profile, while I. cembrae did not occur on 26% of tripod logs. We found that I. cembrae mostly infested larch trunks from 6 cm in diameter and infestation density increased with increasing trunk diameter. The poisoned tripods captured more adults of both the overwintering and summer generations of I. cembrae than the slot traps. The sex ratio of I. cembrae was determined on traps and tripods from the number of maternal galleries on nuptial chambers, while in slot traps and on poisoned tripods it was established by the dissection of captured adults. The number of females on the trap trees and tripods was significantly higher than in the slot traps and on the poisoned tripods. In the slot traps and on the poisoned tripods, the number of females and males was equal. All installations were found to be effective and can be used in forest protection of larch against I. cembrae.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

<a href="/cs/project/QK1920433" target="_blank" >QK1920433: Vliv obranných opatření na populace lýkožroutů v závislosti na populačních hustotách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sylwan

ISSN

0039-7660

e-ISSN

—

Svazek periodika

167

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

12

Strana od-do

233-244

Kód UT WoS článku

001058347400001

EID výsledku v databázi Scopus

2-s2.0-85181040830