| feeding preference of three lady beetle predators of the hemlock woolly adelgid (homoptera: adelgidae). | in a laboratory study, we tested the feeding preferences of three coccinellid predators of hemlock woolly adelgid, adelges tsugae annand, an introduced pest of hemlock in the eastern united states. the species tested were sasajiscymnus tsugae sasaji & mcclure (formerly pseudoscymnus tsugae) from japan, scymnus ningshanensis yu & yao from china, and harmonia axyridis (pallas), a generalist species introduced from asia that is currently widespread in eastern hemlock, tsuga canadensis carriere, for ... | 2004 | 15568353 |
| permanent genetic resources added to molecular ecology resources database 1 august 2009-30 september 2009. | this article documents the addition of 238 microsatellite marker loci and 72 pairs of single nucleotide polymorphism (snp) sequencing primers to the molecular ecology resources database. loci were developed for the following species: adelges tsugae, artemisia tridentata, astroides calycularis, azorella selago, botryllus schlosseri, botrylloides violaceus, cardiocrinum cordatum var. glehnii, campylopterus curvipennis, colocasia esculenta, cynomys ludovicianus, cynomys leucurus, cynomys gunnisoni, ... | 2010 | 21565018 |
| the pine bark adelgid, pineus strobi, contains two novel bacteriocyte-associated gammaproteobacterial symbionts. | bacterial endosymbionts of the pine bark adelgid, pineus strobi (insecta: hemiptera: adelgidae), were investigated using transmission electron microscopy, 16s and 23s rrna-based phylogeny, and fluorescence in situ hybridization. two morphologically different symbionts affiliated with the gammaproteobacteria were present in distinct bacteriocytes. one of them ("candidatus annandia pinicola") is most closely related to an endosymbiont of adelges tsugae, suggesting that they originate from a lineag ... | 2014 | 24271164 |
| host range specificity of scymnus camptodromus (coleoptera: coccinellidae), a predator of hemlock woolly adelgid (hemiptera: adelgidae). | scymnus (neopullus) camptodromus yu and liu (coleoptera: coccinellidae) was brought to the united states from china as a potential biological control agent for hemlock woolly adelgid (adelges tsugae annand) (hemiptera: adelgidae). scymnus camptodromus phenology is closely synchronized with that of a. tsugae and has several characteristics of a promising biological control agent. as a prerequisite to field release, s. camptodromus was evaluated for potential nontarget impacts. in host range studi ... | 2016 | 26612409 |
| prey suitability and phenology of leucopis spp. (diptera: chamaemyiidae) associated with hemlock woolly adelgid (hemiptera: adelgidae) in the pacific northwest. | leucopis spp. (diptera: chamaemyiidae) from the pacific northwest previously were identified as potential biological control agents for the hemlock woolly adelgid, adelges tsugae annand (hemiptera: adelgidae), in the eastern united states. we collected leucopis spp. larvae from a. tsugae infested western hemlocks in oregon and washington and reared them on an unidentified pineus spp., pineus strobi (hartig), adelges cooleyi (gillette), adelges piceae (ratzeburg), and a. tsugae in three no-choice ... | 2011 | 22217756 |
| phenology of the pine bark adelgid, pineus strobi (hemiptera: adelgidae), in white pine forests of southwestern virginia. | the pine bark adelgid, pineus strobi hartig (hemiptera: adelgidae), is a native herbivore of eastern white pine, pinus strobus l. (pinales: pinaceae), in eastern north america. p. strobi does not appear to have any dominant overwintering lifestage in southwest virginia, as it does in its northern range. eggs can be found consistently from late march through early december and may be produced sporadically later throughout the winter during warm periods. two distinct generations were observed in t ... | 2017 | 29106470 |