scholarly journals Evidence for Resistance of Deciduous Azaleas to Azalea Lace Bug

1992 ◽  
Vol 10 (1) ◽  
pp. 40-43
Author(s):  
S. Kristine Braman ◽  
Andrew F. Pendley
Keyword(s):  
First Generation ◽  
Adult Survival ◽  
Third Generation ◽  
Deciduous Species ◽  
Delaware Valley ◽  
Late Season ◽  
Lace Bug ◽  
Choice Tests

Abstract Five deciduous Rhododendron species (R. albamense Rehder, R. austrinum (Small) Rehder, R. calendulaceum (Michaux) Torrey, R. canescens (Michaux) sweet, and R. prunifolium (Small) Millais) were tested for resistance to oviposition by the azalea lace bug (ALB), Stephanitis pyrioides (Scott). Control plants were R. mucronatum ‘Delaware Valley White’ (DVW), a susceptible evergreen variety. Rhododendron canescens and R. prunifolium were the least suitable for adult survival and the most resistant to oviposition in no-choice tests repeated six times during a two year study. All deciduous species were significantly less preferred than DVW early in the season corresponding with activity of first generation ALB adults. In late season assays corresponding to activity of second and third generation ALB adults, only R. canescens was consistently less preferred than DVW.

scholarly journals The Effects of Stomatal Size on Feeding Preference of Azalea Lace Bug, Stephanitis pyrioides (Hemiptera: Tingidae), on Selected Cultivars of Evergreen Azalea

HortScience ◽  
2008 ◽  
Vol 43 (7) ◽  
pp. 2098-2103 ◽  
Author(s):  
Grant T. Kirker ◽  
Blair J. Sampson ◽  
Cecil T. Pounders ◽  
James M. Spiers ◽  
David W. Boyd
Keyword(s):  
Feeding Preference ◽  
Delaware Valley ◽  
Stomatal Size ◽  
Lace Bug ◽  
Choice Tests ◽  
Length And Area ◽  
Stomatal Length ◽  
Choice Feeding ◽  
Economic Pest ◽  
Evergreen Azalea

Azalea lace bug (ALB), Stephanitis pyrioides (Scott), is an important economic pest of azaleas in the southeastern United States. In this study, 33 commercially available cultivars of evergreen azalea, Rhododendron spp., were evaluated for S. pyrioides feeding preference in both choice and no-choice feeding bioassays. Mean stomatal length and area, which were hypothesized to affect ALB feeding preference, were also measured for each of 33 cultivars and results were correlated with indices of ALB feeding (mean feces) and fecundity (mean eggs). An azalea cultivar, Fourth of July, was least preferred by ALB in both no-choice and choice tests, whereas ‘Watchet’ was most preferred. Cultivars Fourth of July and Delaware Valley White had the smallest mean stomatal areas despite their disparate susceptibilities to ALB feeding. Although stomates through which ALB insert their proboscides vary in size among azalea cultivars, they confer no obvious resistance to ALB feeding preference. Therefore, the mechanism for lace bug resistance in azalea remains elusive.

scholarly journals Host Plant Utilization Within Family Ericaceae by the Andromeda Lace Bug Stephanitis takeyai (Hemiptera: Tingidae)

2012 ◽  
Vol 30 (3) ◽  
pp. 132-136
Author(s):  
Shakunthala Nair ◽  
S. Kristine Braman ◽  
D. A. Knauft
Keyword(s):  
Host Plant ◽  
Calluna Vulgaris ◽  
Leaf Damage ◽  
Adult Survival ◽  
Kalmia Latifolia ◽  
Host Alternation ◽  
Lace Bug ◽  
Plant Utilization ◽  
The Family ◽  
Choice Tests

This study examined host plant utilization by the Andromeda lace bug, Stephanitis takeyai Drake and Maa, within the family Ericaceae. The preferred host of S. takeyai is the Japanese pieris, Pieris japonica (Thunb.) D. Don ex G. Don, but it has been reported to exhibit host alternation and also to occur on other unrelated host plants. We examined the acceptability of ten landscape and fruit plants belonging to the family Ericaceae (Rhododendron calendulaceum, Rhododendron ‘Hampton Beauty’, Rhododendron ‘Autumn Empress’, Vaccinium arboreum, Vaccinium virgatum, Calluna vulgaris, Kalmia latifolia, Pieris floribunda, Pieris phillyreifolia and Pieris japonica ‘Temple Bells’) to S. takeyai. In no-choice tests adult survival did not vary significantly among the taxa. Highest leaf damage was recorded on P. japonica and R. calendulaceum, while slight damage was noted on V. arboreum and Rhododendron ‘Hampton Beauty’. Nymph emergence was observed in P. japonica, R. calendulaceum and Rhododendron ‘Hampton Beauty’. In multi-choice tests adult presence on leaves did not vary significantly except on day 9, when adults were more numerous on ‘Temple Bells’. Maximum leaf damage was recorded on P. japonica, ‘Temple Bells’. Several plants like Rhododendron and Vaccinium spp., which may not be favorable hosts, could serve as reservoirs for the pest.

Grandparents Reveal Their Secrets: A New Holocaust Narrative for the Young ‘Third Generation’ in Israel

2012 ◽  
Vol 5 (1) ◽  
pp. 97-110 ◽  
Author(s):  
Yael Darr
Keyword(s):  
Young Children ◽  
First Generation ◽  
Third Generation ◽  
Master Narrative ◽  
Safe Distance ◽  
Domestic Sphere ◽  
Holocaust Memory ◽  
Very Young Children ◽  
The Holocaust ◽  
New Type

Since the 1990s, a new type of Holocaust story has been emerging in Israeli children's literature. This new narrative is directed towards very young children, from preschool to the first years of elementary school, and its official goal is to instil in them an authentic ‘first Holocaust memory’. This essay presents the literary characteristics of this new Holocaust narrative for children and its master narrative. It brings into light a new profile of both writers and readers. The writers were young children during the Holocaust, and first chose to tell their stories from the safe distance of three generations. The readers are their grand-children and their grand-children's peers, who are assigned an essential role as listeners. These generational roles – the roles of a First Generation of writers and of a Third Generation of readers – are intrinsically familial ones. As such, they mark a significant change in the profile of yet another important figure in the Israeli intergenerational Holocaust discourse, the agent of the Holocaust story for children. Due to the new literary initiatives, the task of providing young children with a ‘first Holocaust memory’ is transferred from the educational authority, where it used to reside, to the domestic sphere.

In Vitro Screening of Azalea for Resistance to Azalea Lace Bug

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 506b-506
Author(s):  
Carol D. Robacker ◽  
S.K. Braman
Keyword(s):  
Leaf Damage ◽  
In Vitro Screening ◽  
Screening Assay ◽  
Delaware Valley ◽  
In Vitro Techniques ◽  
Culture Tube ◽  
Lace Bug ◽  
Lace Bugs ◽  
Laboratory Bioassays

Azalea lace bug (Stephanitis pyrioides) is the most serious pest on azalea. Results of laboratory bioassays and field evaluations of 17 deciduous azalea taxa have identified three resistant taxa: R. canescens, R. periclymenoides, and R. prunifolium. Highly susceptible taxa are `Buttercup', `My Mary', R. oblongifolium, and the evergreen cultivar `Delaware Valley White'. To determine whether in vitro techniques would have potential value in screening or selecting for resistance, or for the identification of morphological or chemical factors related to resistance, an in-vitro screening assay was developed. In-vitro shoot proliferation was obtained using the medium and procedures of Economou and Read (1984). Shoots used in the bioassays were grown in culture tubes. Two assays were developed: one for nymphs and one for adult lace bugs. To assay for resistance to nymphs, `Delaware Valley White' leaves containing lace bug eggs were disinfested with 70% alcohol and 20% commercial bleach, and incubated in sterile petri plates with moistened filter paper until the nymphs hatched. Five nymphs were placed in each culture tube, and cultures were incubated for about 2 weeks, or until adults were observed. To assay for resistance to adults, five female lace bugs were placed in each culture tube and allowed to feed for 5 days. Data collected on survival and leaf damage was generally supportive of laboratory bioassays and field results. Adult lace bugs had a low rate of survival on resistant taxa. Survival of nymphs was somewhat reduced on resistant taxa.

The Brown Mite, Bryobia arborea Morgan and Anderson (Acarina: Tetranychidae), on Apple in Nova Scotia.: I. Influence of Intratree Distribution on the Selection of Sampling Units. II. Differences in Habits and Seasonal Trends in Orchards With Bivoltine and Trivoltine Populations. III. Distribution of Diapause Eggs. IV. Hatching of Diapause Eggs

1965 ◽  
Vol 97 (12) ◽  
pp. 1303-1318 ◽  
Author(s):  
H. J. Herbert
Keyword(s):  
Nova Scotia ◽  
First Generation ◽  
Second Generation ◽  
Central Area ◽  
Third Generation ◽  
Apple Trees ◽  
Seasonal Trends ◽  
Sample Unit ◽  
The Third ◽  
Selection Of

AbstractIn Nova Scotia one leaf cluster with an adjoining 1 inch of twig taken from the inside of each of 10 apple trees replicated four times is an adequate sample unit to measure the density of the brown mite.The brown mite has one generation with a partial second in some orchards and one with a partial second and partial third in others. The first generation adults in the bivoltine and trivoltine populations lay summer eggs on the leaves and twigs, and diapause eggs on tin twigs. The second generation adults in the bivoltine populations lay only diapause eggs; in the trivoltine populations they lay both summer and diapause eggs. The adults of the third generation lay only diapause eggs.The brown mite is found on both the leaves and woody parts of the tree. In orchards with bivoltine populations the proportion of mites on leaves reached a peak of 80% by mid-July, but thereafter gradually decreased to 10% by the end of August. However, in orchards with trivoltine populations the proportion of mites on leaves reached a peak of 80 to 90% by mid-July, remained constant until mid-August, and thereafter decreased to approximately 40% by the end of August.The number of diapause eggs laid by adults of each generation in both the bivoltine and trivoltine populations varies widely. The eggs are deposited on the trunk as well as on the branches, with the heaviest deposition in the central area of the tree. The diapause eggs laid by adults of the first generation are the last to hatch and those laid by the third generation are the first to hatch the following spring.The factors responsible for the differences in the number of generations and in the number of diapause eggs laid are unknown.

Human Right to Environment and Its Effective Protection in Catalonia, Spain and Europe

2014 ◽  
Vol 42 (1) ◽  
pp. 121-134
Author(s):  
Alexandre Peñalver i Cabré
Keyword(s):  
Human Rights ◽  
First Generation ◽  
18Th Century ◽  
Third Generation ◽  
Political Rights ◽  
Human Right ◽  
Effective Protection ◽  
Cultural Rights ◽  
Additional Layer ◽  
Civil And Political Rights

Human Right to Environment is one the most relevant Third Generation Human Rights which includes new universal needs arisen from the last third of 20th century. These new human rights add as an additional layer to the First Generation Human Rights (civil and political rights from the end of 18th century) and to the Second Generation Human Rights (economic, social and cultural rights from 19th century).

scholarly journals Philosophy from the outside in: Rosenzweig’s critical project

2012 ◽  
Vol 23 (2) ◽  
pp. 65-76
Author(s):  
Willi Goetschel
Keyword(s):  
First Generation ◽  
Martin Buber ◽  
Third Generation ◽  
Literary Modernism ◽  
The Third ◽  
Jewish Thought ◽  
Two Generations ◽  
The University ◽  
Critical Intervention ◽  
Hermann Cohen

This paper examines Rosenzweig?s philosophic project in the context of his time as a critical intervention in the discussion of the place of Jewish thought in the university and in society. If Hermann Cohen represented the first generation of Jewish philosophers claiming that participation in the university is constitutive for the institution?s claim to universalism, the second generation-represented by Martin Buber - was more diffident about the university and its openness. For Buber, literary modernism offered what the university would refuse. Disappointed about the failure of the recognition of the efforts of the previous two generations, Rosenzweig represents the third generation. He turns the situation into a creative response anchoring philosophy as a project that calls for a resolute move outside the university.

scholarly journals Therapeutic Drug Monitoring of Second- and Third-Generation Antiepileptic Drugs: Insights From a College of American Pathologists Proficiency Testing Survey

2021 ◽  
Author(s):  
Matthew D. Krasowski ◽  
Thomas A. Long ◽  
Christine L. H. Snozek ◽  
Annabel Dizon ◽  
Barbarajean Magnani ◽  
...  
Keyword(s):  
Therapeutic Drug Monitoring ◽  
Antiepileptic Drugs ◽  
Proficiency Testing ◽  
Drug Monitoring ◽  
First Generation ◽  
Therapeutic Drug ◽  
Third Generation ◽  
Enzyme Immunoassays ◽  
Steady Growth ◽  
Survey Results

Context.— Therapeutic drug monitoring has traditionally been widely used for first-generation antiepileptic drugs (AEDs) such as carbamazepine and phenytoin. The last 2 decades have seen the introduction of second- and third-generation AEDs (eg, lamotrigine, levetiracetam, and topiramate) into clinical practice. Objective.— To use data from the College of American Pathologists Therapeutic Drug Monitoring, Extended proficiency testing survey to determine the performance of assays used for therapeutic drug monitoring of newer AEDs, including comparison of enzyme immunoassay and chromatographic techniques. Design.— Six years of proficiency testing surveys were reviewed (2013–2018). Results.— Steady growth was seen in participant volumes for newer AEDs. The analytical performance of automated enzyme immunoassays for lamotrigine, levetiracetam, and topiramate was similar to that of chromatographic methods, consistent with published literature using patient samples for comparisons. The majority of participating laboratories now use enzyme immunoassays to measure levetiracetam. Conclusions.— Survey results reflect steadily growing interest in therapeutic drug monitoring of newer AEDs. The increasing availability of robust immunoassays for new AEDs should facilitate their clinical utility, especially for clinical laboratories that do not perform chromatographic assays for therapeutic drug monitoring.

Distillery Configurations

2019 ◽  
pp. 47-64
Author(s):  
Karl Raitz
Keyword(s):  
Nineteenth Century ◽  
Labor Force ◽  
First Generation ◽  
Second Generation ◽  
High Capacity ◽  
Third Generation ◽  
Early Nineteenth Century ◽  
Railroad Tracks ◽  
Urban Rail ◽  
Capacity Output

Early-nineteenth-century farmers and millers were often craft distillers, mashing and fermenting grain meal in wooden barrels before distilling the liquid in small copper pot stills. Waterwheels powered the first-generation creek-side mills and distilleries. Wood fueled early steam engines; the use of coal required access to better transportation. Second-generation distilleries, operating from the 1830s to the 1880s, used traditional pot stills,although some adopted new column stills, perfected in Scotland, when they began to mechanize. Old still buildings were often modified to accommodate new machinery. Distillers stored whiskey-filled wooden barrels in stack warehouses to age. Industrialization required a larger labor force. By 1880, businesses in Louisville and other river cities were producing steam engines, boilers, and related equipment. Third-generation distilleries operated from the 1880s to 1920; their high-capacity output required more grain and fuel, mandating locations near railroad tracks or navigable rivers. Complementary industries such as cooperages, metal fabricators, slaughterhouses, and tanneries were attracted to urban, rail-side distilleries.

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