Results 1 to 10 of about 1,413 (203)

New parasitoid (Hymenoptera, Chalcidoidea) records of bark beetles (Coleoptera, Curculionidae, Scolytinae) in pine plantations in Bulgaria [PDF]

open access: yesBiodiversity Data Journal, 2023
In 2020 and 2021, chalcidoid parasitoids (Hymenoptera, Chalcidoidea) of bark beetles in pine (Pinus spp.) plantations were studied in Bulgaria. Samples (cuttings of stems and branches) of pine trees infested by bark beetles were collected from seven ...
Sevdalin Belilov   +3 more
doaj   +4 more sources

Polyploid spermatozoa in Pityogenes chalcographus and Ips typographus (Coleoptera: Scolytidae) [PDF]

open access: yesEuropean Journal of Entomology, 2004
Abnormal spermatogenesis in Pityogenes chalcographus (L.) and Ips typographus (L.) results in oversized spermatozoa in all the populations investigated. They can be identified by light microscopy and classified as 2n up to 16n polyploid.
Erwin FÜHRER
doaj   +2 more sources

New Canadian and Provincial Records of Coleoptera Resulting from Annual Canadian Food Inspection Agency Surveillance for Detection of Non-Native, Potentially Invasive Forest Insects [PDF]

open access: yesInsects, 2022
The arrival and establishment of adventive, invasive forest insects are a threat to the health, diversity, and productivity of forests in Canada and the world at large, and their early detection is essential for successful eradication and management. For
Graham S. Thurston   +6 more
doaj   +2 more sources

Natural-history traits suspected behind interspecific variations of bark- and wood-boring beetles in response to trap size and design [PDF]

open access: yesScientific Reports
The performances of traps used for pest monitoring are not well understood. Variable trap sizes and shapes make cross-comparisons difficult. We tested with four Scolytinae species (Coleoptera, Curculionidae) a set of traps of the same model (fan-traps ...
Emilio Caiti   +2 more
doaj   +2 more sources

Optimal tuning of PI based LF for three-phase SRF PLL synchronization system using pity beetle algorithm under grid abnormalities [PDF]

open access: yesScientific Reports
The importance of grid synchronization in recent years is primarily driven by the widespread integration of renewable energy sources (RES). As nations transition toward carbon–neutral power systems, the variable nature of renewables and the increasing ...
P. Riyas, S. A. Lakshmanan
doaj   +2 more sources

Impact of habitat associations on saproxylic beetle assemblages and their damage severity [PDF]

open access: yesScientific Reports
Saproxylic beetles, as primary decomposers in forest ecosystems, play a crucial role in the decomposition of dead wood. However, there is a significant gap in understanding the extent of assemblages and damage caused by these insects, which is essential ...
Bat-Amgalan Batchudur   +3 more
doaj   +2 more sources

Discovery of Phloeophagus Beetles as a Source of Pseudomonas Strains That Produce Potentially New Bioactive Substances and Description of Pseudomonas bohemica sp. nov. [PDF]

open access: yesFrontiers in Microbiology, 2018
Antimicrobial resistance is a worldwide problem that threatens the effectiveness of treatments for microbial infection. Consequently, it is essential to study unexplored niches that can serve for the isolation of new microbial strains able to produce ...
Zaki Saati-Santamaría   +19 more
doaj   +2 more sources

Three species of bark beetles (Coleoptera: Curculionidae, Scolytinae) on Pinus peuce in Pirin Mountains in Bulgaria [PDF]

open access: yesSilva Balcanica, 2021
In 2020 and 2021, three species of bark beetles (Coleoptera: Curculionidae, Scolytinae) were established on Macedonian pine (Pinus peuce) in the region of Vihren hut in Pirin Mts.
Sevdalin Belilov   +3 more
doaj   +3 more sources

New braconid parasitoids (Hymenoptera: Braconidae) on bark beetles in Ihtimanska Sredna Gora Mountain, Bulgaria [PDF]

open access: yesSilva Balcanica, 2023
In 2020, two braconid species (Hymenoptera: Braconidae) were found as parasitoids of bark beetles in Pinus sylvestris plantations in Ihtimanska Sredna Gora Mt.
Sevdalin Belilov, Georgi Georgiev
doaj   +3 more sources

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