scholarly journals Exploiting trap color to improve surveys of longhorn beetles

2020 ◽  
Author(s):  
Giacomo Cavaletto ◽  
Massimo Faccoli ◽  
Lorenzo Marini ◽  
Johannes Spaethe ◽  
Filippo Giannone ◽  
...  
Keyword(s):  
Block Design ◽  
Beetle Species ◽  
Mixed Response ◽  
Longhorn Beetles ◽  
Longhorn Beetle ◽  
Trap Color ◽  
Surveillance Programs ◽  
Materials Used ◽  
Flower Visiting ◽  
Species Richness And Abundance

AbstractLonghorn beetles are commonly moved among continents within wood packaging materials used in trades. Visual inspections carried out at points of entry often fail to detect exotic longhorn beetles as infested materials may have little or no sign of colonization. Black-colored traps baited with pheromones and host volatiles are thus used to improve chances of detection. Here we tested whether existing surveillance protocols for longhorn beetles can be further improved using trap colors different than black. Baited traps of eight different colors (i.e., grey, yellow, green, red, blue, brown, purple and black) were deployed in a randomized complete block design at 16 sites in northern Italy in 2019. A total of 6,001 individuals from 56 longhorn beetle species were trapped. In general, yellow and blue traps caught a significantly higher number of longhorn beetle species than black traps. In addition, trap color significantly affected species richness and abundance at the subfamily and species level, with mixed response mostly linked to the habit of visiting flowers for food. Flower-visiting longhorn beetles mainly exhibited clear preference for flower-related colors, i.e., yellow, green and blue, whereas non-flower-visiting species were more attracted by dark and long-wavelength-dominated colors, like red and brown. Our results clearly indicate that generic surveillance programs should not rely exclusively on black traps and that the use of more trap colors can strongly improve the chance of detecting native and exotic longhorn beetles potentially moved with trades.

scholarly journals Effect of Trap Color on Captures of Bark- and Wood-Boring Beetles (Coleoptera; Buprestidae and Scolytinae) and Associated Predators

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 749
Author(s):  
Giacomo Cavaletto ◽  
Massimo Faccoli ◽  
Lorenzo Marini ◽  
Johannes Spaethe ◽  
Gianluca Magnani ◽  
...  
Keyword(s):  
Bark Beetles ◽  
Ambrosia Beetles ◽  
Color Preferences ◽  
Entry Points ◽  
Trap Color ◽  
Bark And Ambrosia Beetles ◽  
Surveillance Programs ◽  
Flower Visiting ◽  
Species Richness And Abundance ◽  
Wood Boring

Traps baited with attractive lures are increasingly used at entry-points and surrounding natural areas to intercept exotic wood-boring beetles accidentally introduced via international trade. Several trapping variables can affect the efficacy of this activity, including trap color. In this study, we tested whether species richness and abundance of jewel beetles (Buprestidae), bark and ambrosia beetles (Scolytinae), and their common predators (i.e., checkered beetles, Cleridae) can be modified using trap colors different to those currently used for surveillance of jewel beetles and bark and ambrosia beetles (i.e., green or black). We show that green and black traps are generally efficient, but also that many flower-visiting or dark-metallic colored jewel beetles and certain bark beetles are more attracted by other colors. In addition, we show that checkered beetles have color preferences similar to those of their Scolytinae preys, which limits using trap color to minimize their inadvertent removal. Overall, this study confirmed that understanding the color perception mechanisms in wood-boring beetles can lead to important improvements in trapping techniques and thereby increase the efficacy of surveillance programs.

scholarly journals Phytoecia (musaria) argus (Frölich, 1793): A new longhorn beetle (Coleoptera: Cerambycidae) for the fauna of Serbia

Topola ◽  
2021 ◽  
pp. 35-40
Author(s):  
Dejan Stojanović
Keyword(s):  
Conservation Status ◽  
Beetle Species ◽  
Natural Habitats ◽  
First Finding ◽  
Longhorn Beetles ◽  
Longhorn Beetle ◽  
The Town

In total, 550 species of longhorn beetles (Cerambycidae) exist in Europe. The most recent checklist of Cerambycidae family of Serbia cited 265 species and 92 subspecies, belonging to 109 genera, 48 tribes, and six subfamilies in the country. However, the presence of 28 species reported from Serbia is questionable. Here we present the first finding of Phytoecia (Musaria) argus (Frölich, 1793) for the fauna of Serbia. The species was collected in May and June 2018 on Stol mountain (near the town of Bor, Eastern Serbia). Additionally, data on morphology, bionomy and distribution of the longhorn beetle species are given. With this finding, the total number of longhorn beetle species in Serbia is estimated at 266. This species could be used as an indicator for the assessment of the nature value and conservation status of natural habitats in Serbia and Europe.

scholarly journals New longhorn beetles (Coleoptera: Cerambycidae) from Serbia

2005 ◽  
Vol 57 (4) ◽  
pp. 313-314
Author(s):  
Natasa Pil ◽  
D. Stojanovic
Keyword(s):  
Beetle Species ◽  
Longhorn Beetles ◽  
Longhorn Beetle

The most recent data (Ilic, 2005) indicate the presence of 245 longhorn beetle species (Coleoptera: Cerambycidae) in Serbia. Not included in the mentioned publication, the following five species should be added to the list: Cortodera discolor Fairmaire, 1866; Stenopterus similatus Holzschuh 1979; Chlorophorus aegyptiacus (Fabricius, 1775); Agapanthia osmanlis (Reiche, 1858); Agapanthia maculicornis (Gyllenhal, 1817) (Pil and Stojanovic in press). A total number of 250 species are presently known for the Serbian longhorn beetle fauna.

scholarly journals Effect of banana bunch covering technology for quality banana production in Bangladesh

2020 ◽  
Vol 30 (3) ◽  
pp. 238-252
Author(s):  
MHK Rubel ◽  
MM Hossain ◽  
MMH Hafiz ◽  
MM Rahman ◽  
MR Khatun
Keyword(s):  
Shelf Life ◽  
Dry Matter ◽  
Block Design ◽  
Colour Change ◽  
Morphological Characters ◽  
Insect Infestation ◽  
Physiological Disorder ◽  
Banana Production ◽  
Finger Length ◽  
Materials Used

This study was carried out at Horticulture farm of Bangladesh Agricultural University, Mymensingh in order to find out the effects of bunch covering materials on physio-morphological characters and shelf life of banana cv. Mehersagar. The experiment was undertaken during the period from July to November 2016 with four types of bunch covering materials namely white polythene bag, black polythene bag, blue polythene bag and old cloth along with control (no bunch covering). The experiment was laid out in randomized complete block design with five replications. The results of the investigation revealed that blue polythene bag required significantly minimum days to harvest (76.80 days) and maximum days to harvest (97.80 days) were recorded for control. Maximum bunch weight (19.90 kg), finger length (19.59 cm) and finger diameter (3.56 cm) were recorded for blue polythene bag whereas control showed minimum bunch weight (15.20 kg), finger length (14.57 cm) and finger diameter (3.07 cm). It was observed that blue polythene bag covered fruits showed minimum disease infection (2.33%), insect infestation (2.33%) and physiological disorder (1%) compared to control which experienced maximum disease infection (12.67%), insect infestation (50%) and physiological disorder (13.40%). Weight loss (11.18%), pulp moisture (66.16%), peel moisture (70.41%), disease infection (40%), disease severity (70.25%), skin colour change (4.95) were also lower in blue polythene bag than non covering control fruits. The bunches covered with blue polythene bag  exhibited superior results in respect of pulp thickness (3.45cm), pulp to peel ratio (2.49), pulp dry matter (33.84%), peel dry matter (29.59%), TSS (24.28 % Brix), shelf life (11.40 days) than the rest of bunch covering materials used in this study. It can be concluded that bunch covering showed significant effect on physio-morphological traits and quality of banana. Progressive Agriculture 30 (3): 238-252, 2019

Tylenchid entomoparasites isolated from Spondylis buprestoides (L.) and Asemum striatum (L.) (Coleoptera: Cerambycidae)

Nematology ◽  
2016 ◽  
Vol 18 (7) ◽  
pp. 775-780 ◽  
Author(s):  
Natsumi Kanzaki ◽  
Robin M. Giblin-Davis ◽  
Rafael Gonzalez ◽  
Yasiel Trujillo ◽  
Ann E. Hajek
Keyword(s):  
Ribosomal Rna ◽  
Morphological Analysis ◽  
Large Body ◽  
Small Subunit ◽  
The Body ◽  
Parasitic Nematodes ◽  
Beetle Species ◽  
Field Surveys ◽  
Phylogenetic Status ◽  
Longhorn Beetle

Tylenchid entomoparasites were isolated from two longhorn beetle species, Spondylis buprestoides from Tsukuba, Japan, and Asemum striatum from Ithaca, Tompkins County, NY, USA. Parasitic females and juveniles were obtained from S. buprestoides, where the female has a large body (5-6 mm long), clear stylet retracted into the body and degenerate anus and rectum, similar to some neotylenchids and allantonematids. By contrast, only stylet-bearing parasitic juveniles were found in eggs of A. striatum, and detailed morphological analysis was not done for this isolate. These two isolates of parasites were molecularly characterised, and analysed for their phylogenetic status based on the small subunit of the ribosomal RNA gene. The phylogenetic inference suggested that the two parasitic nematodes are close to each other, and to the siricidicola superspecies of the genus Deladenus, i.e., these two species and Deladenus form a well-supported clade. Because these two host beetle species belong to the same cerambycid subfamily (Spondylinae) from disparate locations, a subfamily-associated nematode parasite lineage may be revealed by further field surveys.

Saproxylic beetles (Coleoptera) using Populus in boreal aspen stands of western Canada: spatiotemporal variation and conservation of assemblages

2004 ◽  
Vol 34 (1) ◽  
pp. 1-19 ◽  
Author(s):  
HE James Hammond ◽  
David W Langor ◽  
John R Spence
Keyword(s):  
Species Richness ◽  
Large Diameter ◽  
Wood Decay ◽  
Great Majority ◽  
Saproxylic Beetles ◽  
Stand Age ◽  
Beetle Species ◽  
Total Species Richness ◽  
Species Richness And Abundance ◽  
Canadian Boreal Forest

Saproxylic beetles associated with Populus coarse woody material were sampled from two age classes of fire-origin aspen stands in north-central Alberta, Canada. A combination of rearings from wood bolts and window traps attached to snags yielded 9571 beetles representing 257 taxa over the 3-year period (1993–1995). We investigated faunal variation across regions, stand ages (mature, 60–90 years; old, >100 years), decay classes, wood types, and years in terms of species richness, abundance, and trophic differences. Although trophic structure was similar, faunal composition differed between the two study regions. Species richness and abundance were similar across stand ages; however, many species were collected exclusively or in great majority from old stands and from snags of large diameter, which suggested that truncation of stand age structure through widespread industrial harvest could have serious consequences for saproxylic assemblages. Beetle species richness increased with the level of wood decay, whereas the total catch of beetles tended to be higher in early stages of decay. Wood borer abundance tended to be higher in snags; however, total species richness was higher in logs. Our analyses suggest that (i) many beetle species in the Canadian boreal forest depend directly upon standing and fallen large-diameter woody material from Populus trees, (ii) variation in stage of decay is critical to beetle diversity, and (iii) provision for retention of representative old stands is critical to conservation of saproxylic communities.

scholarly journals Wiederbesiedlung der Waldbrandfläche von Leuk durch Gliederfüsser

2018 ◽  
Vol 169 (5) ◽  
pp. 290-298 ◽  
Author(s):  
Marco Moretti ◽  
Beat Wermelinger ◽  
Martin M. Gossner ◽  
Martin K. Obrist
Keyword(s):  
Forest Fire ◽  
Indicator Species ◽  
Burned Area ◽  
Species Number ◽  
Beetle Species ◽  
Ecological Disturbance ◽  
Longhorn Beetles ◽  
Investigation Period ◽  
Successional Stages ◽  
The Impact

Arthropod recolonization after the forest fire in Leuk The forest fire of Leuk (Wallis) in 2003 offered the opportunity to assess the impact of fire on arthropods and their succession after the event. We used standardized traps to sample arthropods in the center and at the edge of the burned area as well as in the intact forest outside the surface, two, three, five and ten years after the fire. We investigated different taxonomic and functional groups with particular focus on deadwood dwelling and endangered beetle species. We sampled 1898 species: 949 exclusively within the burned area and 159 exclusively in the intact forest. While the species number in the intact forest hardly changed during the investigation period, it increased dramatically in the burned area immediately after the fire. This was true for the herbivores and pollinators, as well as for the deadwood dwelling and endangered beetle species. In contrast, the number of species in two ground-dwelling groups, i.e., spiders (predators) and woodlice (decomposers), in the burned area exceeded those of the intact forest plots only five or ten years after the fire. During the first three years after the fire, we also sampled pyrophilic (fire-adapted) species, such as the bark bug Aradus lugubris and the longhorn beetles Acmaeops septentrionis and A. marginatus in the burned area. In total, there were 285 indicator species of specific and 38 further indicator species of unspecific post-fire successional stages. In contrast, only 18 indicator species of intact forests could be found. As such, forest fire is an ecological disturbance that can be considered as an important driver for maintaining and enhancing biodiversity as well as fire-specialized species.

scholarly journals Selection of F6 soybean population for pod shattering resistance

2019 ◽  
Vol 20 (11) ◽  
Author(s):  
Ayda Krisnawati ◽  
ANDY SOEGIANTO ◽  
BUDI WALUYO ◽  
KUSWANTO
Keyword(s):  
Block Design ◽  
Selected Lines ◽  
Early Maturity ◽  
Pod Shattering ◽  
Randomized Block Design ◽  
Resistant Lines ◽  
Simultaneous Selection ◽  
Materials Used ◽  
Moderately Resistant ◽  
Selection Of

Abstract. Krisnawati A, Soegianto A, Waluyo B, Kuswanto. 2019. Selection of F6 soybean population for pod shattering resistance. Biodiversitas 20: 3340-3346. Pod shattering is one of the major soybean constraints in Indonesia. This research aimed to evaluate the resistance of soybean F6 population to pod shattering and characterize the selected lines for their agronomic performances. The materials used were 147 F6 lines derived from six crossing combinations. The check varieties consisted of Dega 1, Detap 1, and Anjasmoro. The experiment was arranged in a randomized block design with two replications. At R8 stage, thirty pods were randomly detached from five sample plants of each line to be used for evaluation of pod shattering resistance using an oven-dry method. The variability of pod shattering was showed after the treatment of 60°C oven temperature. The shattering resistance of 147 F6 lines was classified into 52 highly resistant, 49 resistant, two moderately resistant, ten susceptible, and 34 highly susceptible lines. The pod-shattering resistant lines could be used for further improvement in the breeding program. Anjasmoro variety was effective to be used as gene source for shattering resistant. Simultaneous selection based on yield (30% selection intensity) and shattering resistance selected six lines which have early maturity and large seed size, hence they could be further evaluated in several locations in the next breeding stage.

scholarly journals SERAPAN HARA, PERTUMBUHAN DAN HASIL TANAMAN SAWI PAKCOY (Brassica rapa L.) YANG DIBUDIDAYAKAN SECARA ORGANIK DENGAN APLIKASI VERMIKOMPOS

2021 ◽  
Vol 5 (1) ◽  
pp. 57
Author(s):  
Nisma Ula Shoumi Rahmawati
Keyword(s):  
Brassica Rapa ◽  
Growth Response ◽  
Agricultural Land ◽  
Block Design ◽  
Control Factor ◽  
Cow Dung ◽  
Coconut Husk ◽  
Randomized Block Design ◽  
Materials Used

The quality of vermicompost is determined by the kinds of media materials used, the degree ofmaturity, the worm species used and the manufacturing process. In this study using plantpakkoy pakkoy (Brassica rapa L.). The purpose of this study was to determine the optimumdose of three kinds of vermicompost for N, P and K nutrient uptake and growth response andyield of mustard pakcoy (Brassica rapa L.). The research was conducted at Agricultural Land inLandungsari Village, Dau District of Malang Regency with height ± 544 m asl. This research is afield experiment using factorial randomized block design (RAK) with control. Factor 1: VariousVermicompost Materials Factor 2: Application Dose. The resulting data were analyzed variance(ANOVA) with 5% BNJ and 5% Dunnet. Regression analysis was performed to find the optimumdose of vermicompost. The results showed that the growth and production of mustard plantpakcoy using vermicompost showed higher yield compared to control. In the treatment of V2D2(coconut husk + cow dung + leaf litter + rice straw + leftover vegetables with dose of 10 ton ha-1).

scholarly journals Korelasi Hasil dan Komponen Hasil Padi Hibrida di Dua Lokasi Pengujian

2017 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Nita Kartina
Keyword(s):  
Grain Yield ◽  
Selection Criteria ◽  
Hybrid Rice ◽  
Block Design ◽  
Yield Component ◽  
Path Coefficient ◽  
Central Java ◽  
Randomized Complete Block Design ◽  
Rice Genotypes ◽  
Materials Used

<p>One of the objectives in rice breeding is to increase grain yield. The research was to evaluate numbers of hybrid rice genotypes and also to obtain the information about grain yield correlation main, grain yield component from numbers of hybrid rice genotypes and influencial character as selection criteria. The experiment conducted in the second season (MT II) of 2013 at Cilacap, Central Java province and in Malang, East Java province by using Randomized Complete Block Design (RCBD) with four replications. The genetic materials used were 18 hybrid rice genotypes and two check varieties namely Hipa8 and Ciherang. The results showed that grain yield had been effected by location, genotypes and both interactions. Hipa8 give yield average 9 t/ha while Ciherang 8.78 t/ha. There were two hybrid rice genotypes have equal yield statitistically with both check varieties. The hybrids were A7/BH25B-1B(9.13 t/ha) and IR58025A/CRS516 (9.15 t/ha). Based on path analysis numbers of empty grain, seed set, plant high and number of productive tillers have direct effect to yield with path coefficient of 0.0437; 0.3114; 0.,1952 and 1.931.These characters could be used as selection criteria.</p>

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