Canadian Entomologist最新文献

Citizen science reveals the establishment of Chamaesphecia empiformis (Esper) (Lepidoptera: Sesiidae), a long-lost biological control agent for Euphorbia cyparissias (Euphorbiaceae), in Ontario, Canada 公民科学揭示了在加拿大安大略省发现的一种遗失已久的大戟科(Euphorbia cyparissias)生物防治剂Chamaesphecia empiformis (Esper)(鳞翅目:大戟科)

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.17

Alec McClay, Robert S. Bourchier, Jean-François Landry, Catherine E. Morris, Ivo Toševski

引用次数: 0

A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry 用二项抽样法测定商品高丛蓝莓中蓝莓蚜密度

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.14

Yonathan Uriel, Paul K. Abram, Jason Thiessen, Michelle T. Franklin

{"title":"A binomial sampling method for estimating the density of blueberry aphid, Ericaphis fimbriata (Hemiptera: Aphididae), in commercial highbush blueberry","authors":"Yonathan Uriel, Paul K. Abram, Jason Thiessen, Michelle T. Franklin","doi":"10.4039/tce.2023.14","DOIUrl":"https://doi.org/10.4039/tce.2023.14","url":null,"abstract":"Abstract An accurate and efficient sampling method is an important tool for insect pest management because it allows for consistent measurements across many samples. There are currently no proposed standardised sampling plans or spray thresholds for the aphid Ericaphis fimbriata Richards (Hemiptera: Aphididae) on highbush blueberry (Vaccinium corymbosum Linnaeus) in British Columbia, Canada, despite it being the primary vector for blueberry scorch virus (BlScV). A standard sampling plan for this pest would allow for rapid and consistent measurements of aphid abundance in commercial fields and would allow for more detailed study of the relationship between aphid abundance, damage, and the spread of BlScV. Binomial sampling plans use the presence:absence of a pest within a sample unit to estimate the proportion of infested sample units. Pest density (proportion of measured samples with individuals present) is linked to abundance (number of individuals), and the relationship between these two measures can be modelled mathematically. In the present study, we collected data on aphid density and aphid abundance in six varieties of highbush blueberry grown in the Fraser Valley, British Columbia. These data were used to construct a distribution-free binomial model that, when given a measure of aphid density, can predict aphid abundance within a given sample.","PeriodicalId":55289,"journal":{"name":"Canadian Entomologist","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135612340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capture of the oak ambrosia beetle within the host tree canopy 在宿主树冠内捕获橡树甲虫

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.20

Michimasa Yamasaki, Kenshiro Tatsumi, Yasuto Ito

{"title":"Capture of the oak ambrosia beetle within the host tree canopy","authors":"Michimasa Yamasaki, Kenshiro Tatsumi, Yasuto Ito","doi":"10.4039/tce.2023.20","DOIUrl":"https://doi.org/10.4039/tce.2023.20","url":null,"abstract":"Abstract Because bark and ambrosia beetles fly during their dispersal and host location processes, their flight height is important for assessing their host selection strategy. There is no consensus regarding the height of their dispersal flight in forests, and their method of approaching trees is unclear. This is also the case for Platypus quercivorus (Murayama) (Coleoptera: Platypodinae), which causes Japanese oak wilt by transporting a pathogenic fungus. To clarify the vertical distribution of the flying population of P. quercivorus inside the host tree canopy, interception traps were set up at heights of 1–9 m from the ground near the main trunk of eight host trees, Quercus serrata Thunberg (Fagaceae). Captured beetles were collected between July and October 2022. Hole-boring activities were observed on all trees during the season, and beetles were captured at all heights from 1 to 9 m. Beetle capture probability increased with a decrease in height, and the number of captured beetles increased with a decrease in distance from the main trunk. However, the trap design in this study could not capture individuals coming directly above and must be addressed to elucidate their method of approaching their host plant.","PeriodicalId":55289,"journal":{"name":"Canadian Entomologist","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135783855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Sublethal effects of fenoxycarb on female reproduction in Helicoverpa armigera (Lepidoptera: Noctuidae) 苯醚威对棉铃虫雌性生殖的亚致死效应(鳞翅目:夜蛾科)

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.18

Abouzar Izadpanah, Azam Mikani, Saeid Moharramipour

{"title":"Sublethal effects of fenoxycarb on female reproduction in Helicoverpa armigera (Lepidoptera: Noctuidae)","authors":"Abouzar Izadpanah, Azam Mikani, Saeid Moharramipour","doi":"10.4039/tce.2023.18","DOIUrl":"https://doi.org/10.4039/tce.2023.18","url":null,"abstract":"Abstract The cotton bollworm, Helicoverpa armigera (Hünber) (Lepidoptera: Noctuidae), is a polyphagous pest that causes severe damage to economical crops in most parts of the world. The juvenile hormone analogues are a group of insect growth regulators that increase larval ages and disrupt larval development. Moreover, they affect reproductive system in adult insects. In this study, the effects of sublethal doses of fenoxycarb on fecundity, fertility, and longevity parameters, as well as on oocyte size, ecdysteroid titer in ovaries, and expression level of the ultraspiracle ( USP ), ecdysone receptor ( EcR ), hormone receptor 3 ( HR 3), and vitellogenin ( Vg ) genes in adult female H. armigera , were examined. Feeding on artificial diet containing fenoxycarb (LC10 and LC25) significantly decreased the percentage of larval survival rate, pupation rate, pupal weight, fecundity, fertility, and oviposition period. It also clearly shortened female longevity. Fenoxycarb treatment suppressed the expression of the USP , EcR , and Vg genes in H. armigera but had no effect on the HR 3 gene expression level in either pupae or adults. Overall, our results show that using fenoxycarb as a juvenile hormone analogue can reduce reproduction in H. armigera and may work as an alternative to the use of insecticides for controlling this important agricultural pest.","PeriodicalId":55289,"journal":{"name":"Canadian Entomologist","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136201910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of Cinara (Hemiptera: Aphididae) from Japan, and concomitant specimen data publication 标题日本蚜虫属一新种(半翅目:蚜虫科)及其标本资料发表

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.16

Catherine Hébert, Masakazu Sano, Colin Favret

引用次数: 0

The establishment of the association between the Japanese beetle (Coleoptera: Scarabaeidae) and the parasitoid Istocheta aldrichi (Diptera: Tachinidae) in Québec, Canada 加拿大曲梅省日本甲虫(鞘翅目:金龟科)与拟寄生物石甲(双翅目:石甲科)关系的建立

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.22

Marie-Eve Gagnon, Josée Doyon, Simon Legault, Jacques Brodeur

{"title":"The establishment of the association between the Japanese beetle (Coleoptera: Scarabaeidae) and the parasitoid Istocheta aldrichi (Diptera: Tachinidae) in Québec, Canada","authors":"Marie-Eve Gagnon, Josée Doyon, Simon Legault, Jacques Brodeur","doi":"10.4039/tce.2023.22","DOIUrl":"https://doi.org/10.4039/tce.2023.22","url":null,"abstract":"Abstract We explored ecological aspects of the early establishment of the association between the Japanese beetle, Popillia japonica (Newman) (Coleoptera: Scarabaeidae), and the adult tachinid parasitoid, Istocheta aldrichi (Mesnil) (Diptera: Tachinidae), in the province of Québec, Canada. The Japanese beetle started its invasion in the late 1930s, whereas I. aldrichi was detected only in 2009. It is assumed that I. aldrichi spread in the province from its introduced range in the northeastern United States of America. Throughout the summer, we used baited traps in eight localities of southern Québec (2018–2019) and in 13 raspberry ( Rubus idaeus ) fields (2022) localised along a latitudinal gradient to describe the distribution and seasonal occurrence of both species and the parasitism rates of I. aldrichi . We also mapped observational data from the online platform iNaturalist to further describe the current distribution of both the host and its parasitoid. Results indicate that I. aldrichi is well spread in southern Québec and along the St. Lawrence River in most areas where the Japanese beetle is present. Parasitism mostly occurs from late June to mid-July, before the peak of Japanese beetle populations, and levels of total seasonal parasitism range from 3.9 to 27.3% across sampled sites. Together, trap captures and data from iNaturalist provide evidence that I. aldrichi is now established in most areas of the province of Québec where the Japanese beetle is present.","PeriodicalId":55289,"journal":{"name":"Canadian Entomologist","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

“Strawberry fields forever”: flower-inhabiting thrips (Thysanoptera: Thripidae) communities and their spatial interactions in strawberry agroecosystems in Québec, Canada, with first mention of pest Frankliniella intonsa (Trybom) “永远的草莓田”:加拿大quacimbec草莓农业生态系统中花栖蓟马群落及其空间相互作用，首次提到害虫Frankliniella intonsa (Trybom)

4区农林科学

Canadian Entomologist Pub Date : 2023-01-01 DOI: 10.4039/tce.2023.15

Morgane Canovas, Jean-Frédéric Guay, Valérie Fournier, Conrad Cloutier

{"title":"“Strawberry fields forever”: flower-inhabiting thrips (Thysanoptera: Thripidae) communities and their spatial interactions in strawberry agroecosystems in Québec, Canada, with first mention of pest Frankliniella intonsa (Trybom)","authors":"Morgane Canovas, Jean-Frédéric Guay, Valérie Fournier, Conrad Cloutier","doi":"10.4039/tce.2023.15","DOIUrl":"https://doi.org/10.4039/tce.2023.15","url":null,"abstract":"Abstract Thrips (Thysanoptera: Thripidae) communities in agroecosystems are poorly known, particularly in Québec, Canada, where thrips can cause damage in strawberry crops. The phenology of anthophagous thrips and their use of cultivated and wildflower resources were monitored in strawberry agroecosystems, encompassing strawberry (Rosaceae) fields and adjacent uncultivated margins, on Orléans Island, Québec, Canada. A community comprised of 11 thrips species was described, dominated during the whole season by pest species Frankliniella tritici and F. intonsa , which is a first mention in Eastern Canada. Surprisingly, the major strawberry pest F. occidentalis was absent in our samples. Thrips species richness and abundance on wildflowers varied, with few flowering plant species supporting a majority of the community. Sampling sites and local wildflower presence influenced the thrips species assemblage observed on strawberry crops. Such a high thrips diversity was unexpected in this agroecosystem. The identified associations between pest thrips and wildflower species will be useful to develop better control programmes in strawberry crops.","PeriodicalId":55289,"journal":{"name":"Canadian Entomologist","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136207134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uma entrevista com Mônica Diuana Calasans Maia 采访monica Diuana Calasans Maia

IF 0.9 4区农林科学

Canadian Entomologist Pub Date : 2021-04-10 DOI: 10.14436/2358-2782.7.1.012-013.ENT

Jonathan R. Ribeiro

引用次数: 0

An interview with Cauby Maia Chaves Junior Cauby Maia Chaves Junior访谈录

IF 0.9 4区农林科学

Canadian Entomologist Pub Date : 2021-02-01 DOI: 10.14436/2675-486X.20.1.008-024.ENT

B. Furquim, C. Dal-Fabbro, L. Bittencourt, R. Rossi

引用次数: 0

Uma entrevista com José Thiers Carneiro Júnior 采访jose Thiers Carneiro junior

IF 0.9 4区农林科学

Canadian Entomologist Pub Date : 2020-11-16 DOI: 10.14436/2358-2782.6.3.012-014.ent

Jonathan R. Ribeiro

引用次数: 0