BIOLOGY OF PINE FALSE WEBWORM (HYMENOPTERA: PAMPHILIIDAE) DURING AN OUTBREAK

1999 ◽  
Vol 131 (6) ◽  
pp. 729-742 ◽  
Author(s):  
Christopher Asaro ◽  
Douglas C. Allen
Keyword(s):  
New York ◽  
Emerging Adults ◽  
Adult Emergence ◽  
Larval Feeding ◽  
Egg Survival ◽  
History Of ◽  
Egg Parasitism ◽  
Pine False Webworm ◽  
Acantholyda Erythrocephala ◽  
Two Populations

AbstractThe life history of pine false webworm, Acantholyda erythrocephala (L.), in three pine (Pinaceae) plantations in northern New York is similar to that reported for this species on red pine, Pinus resinosa Aiton, in Ontario. Adult emergence extended from early May to early June. The sex ratio of emerging adults favored males by as much as 2.7:1. Oviposition occurred from mid-May to early June. Significantly more eggs per fascicle were deposited on the distal third of branches and in the lower third of the crown. Larval feeding took place throughout June. The proportion of prepupae remaining in the soil for more than 1 year varied from 9% to 66% between two sites. There was no evidence of egg parasitism, and egg survival exceeded 95% in each of 2 years. A new species of nematode (Steinernema sp.) (Nematoda: Steinernematidae) was recovered from pronymphs. Homaspis interruptus (Provancher) (Hymenoptera: Ichneumonidae) parasitized larvae and emerged from 8.5% and 2.8% of the pronymphs in two populations.

PHENOLOGY OF THE NATIVE PARASITOID SINOPHORUS MEGALODONTIS (HYMENOPTERA: ICHNEUMONIDAE) RELATIVE TO ITS INTRODUCED HOST, THE PINE FALSE WEBWORM (HYMENOPTERA: PAMPHILIIDAE)

1999 ◽  
Vol 131 (6) ◽  
pp. 787-800 ◽  
Author(s):  
D. Barry Lyons
Keyword(s):  
Emerging Adults ◽  
Adult Emergence ◽  
Classical Biological Control ◽  
Effective Rate ◽  
Flight Period ◽  
Limited Effectiveness ◽  
Emergence Traps ◽  
Pine False Webworm ◽  
Acantholyda Erythrocephala ◽  
Malaise Traps

AbstractThe parasitoid Sinophorus megalodontis Sanborne is a univoltine endoparasitoid that attacks larvae of the pine false webworm, Acantholyda erythrocephala (L.). The morphologies of the egg, instar 1, and cocoon are described. Adult-emergence and Malaise traps were used to examine the patterns of adult activity in Ontario. Adults emerged from the soil over 17 d, in late May and early June, and the median emergence of males preceded that of females by 3.5 d. The sex ratio of emerging adults was approximately 1:1. Malaise traps collected more adults than did emergence traps and also provided information on adult flight period, but collections were biased towards captures of males. Dissections indicated that S. megalodontis oviposited in all instars of the host and that temporal and spatial variations occurred in coincidence with host instars. Encapsulation and superparasitism limited effectiveness of the parasitoids in reducing host populations. At the end of the larval period, the parasitism rate was 17.1%, but encapsulation reduced the effective rate to 9.0%. Superparasitism was observed in 4.8% of the host larvae. There was some indication that parasitism resulted in retardation of host development. Later-dropping host larvae had a significantly greater incidence of parasitism. The host is an introduced insect from Europe, whereas the parasitoid is likely endemic to North America. Few North American parasitoids attack this introduced species, and S. megalodontis appears limited in its ability to reduce the size of pine false webworm populations. Consequently, pine false webworm is a suitable candidate for classical biological control attempts with introduced parasitoids from Europe.

History of a pine false webworm (Hymenoptera: Pamphiliidae) outbreak in northern New York

2001 ◽  
Vol 31 (1) ◽  
pp. 181-185 ◽  
Author(s):  
Christopher Asaro ◽  
Douglas C Allen
Keyword(s):  
New York ◽  
The United States ◽  
White Pine ◽  
Central State ◽  
North Central ◽  
History Of ◽  
Current Outbreak ◽  
Canadian Provinces ◽  
Pine False Webworm ◽  
Acantholyda Erythrocephala

A sustained outbreak of pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae), in northern New York is unprecedented in its extent and duration. White pine, Pinus strobus L., is the preferred host in this region. What began as a 30-ha infestation of this introduced sawfly in 1981 affected 5440 ha of white pine distributed throughout 231 000 ha in St. Lawrence and Franklin counties by 1995. Occurrence of A. erythrocephala in the United States has been documented in eight northeastern and one north-central state (Connecticutt, Massachusetts, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, and Wisconsin) and three Canadian provinces (Alberta, Newfoundland, and Ontario). Possible explanations for the occurrence and tenure of the current outbreak in New York are discussed.

Observations on the life-history traits of the North American parasitoid Phasgonophora sulcata Westwood (Hymenoptera: Chalcididae) attacking Agrilus planipennis (Coleoptera: Buprestidae) in Ontario, Canada

2016 ◽  
Vol 148 (3) ◽  
pp. 294-306 ◽  
Author(s):  
Lucas E. Roscoe ◽  
D. Barry Lyons ◽  
Sandy M. Smith
Keyword(s):  
Emerging Adults ◽  
Tree Height ◽  
Adult Emergence ◽  
Mass Rearing ◽  
Agrilus Planipennis ◽  
Potential Fecundity ◽  
The North ◽  
Parasitism Rates ◽  
Ash Trees ◽  
History Of

AbstractUnder laboratory and field conditions in Ontario, Canada, we explored the natural history of Phasgonophora sulcata Westwood (Hymenoptera: Chalcididae), an indigenous solitary endoparasitoid of Agrilus planipennis Fairmaire (Coleoptera: Buprestidae) in North America. Adult P. sulcata emergence was ~20.2–23.9 days after host emergence at 21°C, with P. sulcata females emerging an ~5.4–5.8 days before males. Females also represented 61.8 and 67.0% of emerging adults in the two years sampled. Mean adult longevities for males and females of P. sulcata were 23.8±1.10 and 28.9±1.11 days at 21°C, respectively. Mean potential fecundity of P. sulcata at emergence was 55.7±2.9 eggs per female. Based on adult emergence, parasitism at two sites varied from 11.7% to 34.4%. Adult parasitoids were first observed in the field in early June, with peak capture occurring in late June. Parasitism rates in A. planipennis-infested ash trees was not affected by tree height below 360 cm, whereas parasitism was not observed at heights>360 cm. Our results suggest that although mass rearing will be challenging, observed parasitism rates in conjunction with temporal and spatial synchrony indicate that indigenous P. sulcata may be an important source of mortality for A. planipennis populations.

A simple rearing technique for larvae and observations on the larval biology of Australian ‘splendid ghost moths’, Aenetus (Herrich-Schäffer, 1855) (Lepidoptera: Hepialidae)

2018 ◽  
Vol 8 (3) ◽  
pp. 43-51
Author(s):  
ETHAN PEREGRINE BEAVER ◽  
JOHN GREHAN
Keyword(s):  
Host Plant ◽  
Emerging Adults ◽  
Effective Means ◽  
Adult Emergence ◽  
Wide Distribution ◽  
Larval Feeding ◽  
Larval Biology ◽  
New Host ◽  
Distribution Ranges ◽  
Associate Species

It is difficult to associate species of the wood-boring moth in the genus Aenetus with their host plant, because larvae develop inside live trees. A new method is described for rearing larvae of Aenetus eximia, A. lewinii, A. blackburnii, A. ligniveren and A. scotti in cut stems of trees containing larval tunnels by feeding them apple pieces. Larvae that completed development were reared from 49 to 396 days after collection from the field. Aspects of larval feeding webs and adult emergence are described, and new host records are documented. The rearing method is shown to provide an effective means of accurately determining the species of Aenetus developing inside a given host plant.  It was more convenient than obtaining pupae or emerging adults in the field, which is often not possible to do. The method should be useful for conducting surveys, particularly for species with wide distribution ranges. This method may also be effective for the study of other genera of callus feeding, stem boring Hepialidae, such as Archaeoaenetus, Endoclita, Phassus, Schausiana and Zeloptypia.

Messy, Energetic, Intense: A Roundtable Conversation among New York's Asian American Experimental Filmmakers of the Eighties with Roddy Bogawa, Daryl Chin, Shu Lea Cheang, and Rea Tajiri

2020 ◽  
Vol 73 (3) ◽  
pp. 66-78
Author(s):  
Vince Schleitwiler ◽  
Abby Sun ◽  
Rea Tajiri
Keyword(s):  
New York ◽  
New York City ◽  
Asian American ◽  
York City ◽  
American Film ◽  
The Sixties ◽  
History Of

This roundtable grew out of conversations between filmmaker Rea Tajiri, programmer Abby Sun, and scholar Vince Schleitwiler about a misunderstood chapter in the history of Asian American film and media: New York City in the eighties, a vibrant capital of Asian American filmmaking with a distinctively experimental edge. To tell this story, Rea Tajiri contacted her artist contemporaries Shu Lea Cheang and Roddy Bogawa as well as writer and critic Daryl Chin. Daryl had been a fixture in New York City art circles since the sixties, his presence central to Asian American film from the beginning. The scope of this discussion extends loosely from the mid-seventies through the late nineties, with Tajiri, Abby Sun, and Vince Schleitwiler initiating topics, compiling responses, and finalizing its form as a collage-style conversation.

The Modernities of H. Lawrence Freeman

2019 ◽  
Vol 72 (3) ◽  
pp. 719-779
Author(s):  
David Gutkin
Keyword(s):  
Nineteenth Century ◽  
New York ◽  
Reception History ◽  
Black Press ◽  
Late Nineteenth Century ◽  
Starting Point ◽  
History Of ◽  
Late Nineteenth ◽  
White Press ◽  
Grand Opera

H. Lawrence Freeman's “Negro Jazz Grand Opera,” Voodoo, was premiered in 1928 in Manhattan's Broadway district. Its reception bespoke competing, racially charged values that underpinned the idea of the “modern” in the 1920s. The white press critiqued the opera for its allegedly anxiety-ridden indebtedness to nineteenth-century European conventions, while the black press hailed it as the pathbreaking work of a “pioneer composer.” Taking the reception history of Voodoo as a starting point, this article shows how Freeman's lifelong project, the creation of what he would call “Negro Grand Opera,” mediated between disparate and sometimes apparently irreconcilable figurations of the modern that spanned the late nineteenth century through the interwar years: Wagnerism, uplift ideology, primitivism, and popular music (including, but not limited to, jazz). I focus on Freeman's inheritance of a worldview that could be called progressivist, evolutionist, or, to borrow a term from Wilson Moses, civilizationist. I then trace the complex relationship between this mode of imagining modernity and subsequent versions of modernism that Freeman engaged with during the first decades of the twentieth century. Through readings of Freeman's aesthetic manifestos and his stylistically syncretic musical corpus I show how ideas about race inflected the process by which the qualitatively modern slips out of joint with temporal modernity. The most substantial musical analysis examines leitmotivic transformations that play out across Freeman's jazz opera American Romance (1924–29): lions become subways; Mississippi becomes New York; and jazz, like modernity itself, keeps metamorphosing. A concluding section considers a broader set of questions concerning the historiography of modernism and modernity.

Beérkezett könyvek

2008 ◽  
Vol 63 (4) ◽  
pp. 769-770
Author(s):  
Csaba Pléh
Keyword(s):  
New York ◽  
Point Of View ◽  
Cambridge University ◽  
New Science ◽  
Oxford University ◽  
History Of ◽  
The Mind ◽  
Oxford University Press

Danziger, Kurt: Marking the mind. A history of memory . Cambridge University Press, Cambridge, 2008Farkas, Katalin: The subject’s point of view. Oxford University Press, Oxford, 2008MosoninéFriedJudités TolnaiMárton(szerk.): Tudomány és politika. Typotex, Budapest, 2008Iacobini, Marco: Mirroring people. The new science of how we connect with others. Farrar, Straus and Giroux, New York, 2008Changeux, Jean-Pierre. Du vrai, du beau, du bien.Une nouvelle approche neuronale. Odile Jacob, PárizsGazzaniga_n

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