scholarly journals RESISTANCE OF BETULA DAVURICA TO THE BIRCH LEAFMINER, FENUSA PUSILLA (HYMENOPTERA: TENTHREDINIDAE)

1984 ◽  
Vol 116 (9) ◽  
pp. 1275-1276 ◽  
Author(s):  
B.J. Fiori ◽  
D. D. Dolan
Keyword(s):  
Fenusa Pusilla

To our knowledge, reports of Betula spp. resistance against damage caused by the birch leafminer, Fenusa pusilla (Lepeletier), have not been published. Becker (1938), Friend (1933), and Johnson and Lyon (1976) stated that B. populifolia Marsh., B. papyrifera Marsh., and B. alba L. are the most commonly attacked species. Friend (1933) and Johnson and Lyon (1976) stated that B. lenta L., B. alleghaniensis Britt, and B. nigra L. have never been observed infested or are rarely fed upon.

EXOTIC BIRCH-LEAFMINING SAWFLIES (HYMENOPTERA: TENTHREDINIDAE) IN ALBERTA: DISTRIBUTIONS, SEASONAL ACTIVITIES, AND THE POTENTIAL FOR COMPETITION

1997 ◽  
Vol 129 (2) ◽  
pp. 319-333 ◽  
Author(s):  
Scott C. Digweed ◽  
John R. Spence ◽  
David W. Langor
Keyword(s):  
Urban Trees ◽  
Seasonal Activity ◽  
Mature Trees ◽  
Sticky Traps ◽  
Rural Location ◽  
Three Generations ◽  
Complete Representations ◽  
Fenusa Pusilla ◽  
Profenusa Thomsoni ◽  
Southern Alberta

AbstractThe exotic birch-leafmining sawflies Fenusa pusilla (Lepeletier), Profenusa thomsoni (Konow), and Heterarthrus nemoratus (Fallen) occurred in Alberta during 1992–1995, but only the first two were abundant. Birch-leafmining sawflies occurred at all sites surveyed in central and southern Alberta, and appeared to be expanding their ranges northward. Adult F. pusilla began emerging in mid-May (approximately 220 DD05), and there were one to three generations per year, depending on location and year. Female F. pusilla were relatively less abundant on young than on mature trees. Profenusa thomsoni began attacking trees in June (between 400 and 550 DD05), and was invariably univoltine. Both species were more abundant and were active earlier on urban trees than at a nearby rural location. The highest catches and most complete representations of seasonal activity were obtained using yellow sticky traps. Larval F. pusilla and P. thomsoni are unlikely to compete directly for leaf resources because their leafmining activities are separated spatially and temporally, but they probably compete intraspecifically.

PARASITES AND PREDATORS OF THE BIRCH LEAF MINER, FENUSA PUSILLA (HYMENOPTERA: TENTHREDINIDAE), IN QUEBEC

1969 ◽  
Vol 101 (8) ◽  
pp. 839-846 ◽  
Author(s):  
H. H. Cheng ◽  
E. J. LeRoux
Keyword(s):  
Leaf Miner ◽  
Fenusa Pusilla ◽  
Host Parasite Relationship ◽  
Parasite Relationship ◽  
Host Parasite ◽  
Insect Parasites

AbstractTwenty-two species of insect parasites of Fenusa pusilla (Lepeletier) are listed. Fifteen of these species were reared in the present study from F. pusilla in Quebec, 1 on eggs and 14 on larvae; 4 of them act as both primary and secondary parasites. Of the 15, only 1 has previously been reported as a parasite of F. pusilla. Host–parasite relationship and the degree of parasitism are given for the 15 species reared in Quebec.Thirteen species of predators are listed. Of these, 9, three birds and six insects, were observed feeding on F. pusilla larvae during this study.

scholarly journals Use of Foliar-Applied Neem (Azadirachta indica A. Juss.) Seed Extract for the Control of the Birch Leafminer, Fenusa pusilla (Lepeletier) (Hymenoptera:Tenthredinidae)

1987 ◽  
Vol 5 (1) ◽  
pp. 17-19
Author(s):  
Hiram G. Larew ◽  
J.J. Knodel ◽  
D.F. Marion
Keyword(s):  
Azadirachta Indica ◽  
First Generation ◽  
Foliar Spray ◽  
Seed Extract ◽  
Fenusa Pusilla ◽  
Foliar Damage ◽  
Late Instar ◽  
Early Instar

The effect of 1.0% neenl (Azadirachta indica A. Juss.) seed extract applied as a foliar spray against the birch leafminer (Fenusa pusilla (Lepeletier)) was compared to sprays of water and Metasystox-R™. Sprays were applied against the season's first generation, at oviposition (V-3-86) or early instar (V-10-86). Sprayed foliage was harvested and weighed at late instar, and adults were reared. The extract caused significantly more leafminer mortality than did water, and caused as much mortality as Metasystox-R™. Observations suggested that the extract took longer to kill leafminer larvae than did Metasystox-R™ thereby allowing for more foliar damage. There were no differences in efficacy between times of extract application.

The Bionomics of Profenusa thomsoni (Konow) (Hymenoptera: Tenthredinidae) a Leaf-Mining Sawfly on Betula spp

1960 ◽  
Vol 92 (5) ◽  
pp. 376-384 ◽  
Author(s):  
J. Lynton Martin
Keyword(s):  
Leaf Miner ◽  
Southern Ontario ◽  
Leaf Mining ◽  
Fenusa Pusilla ◽  
Profenusa Thomsoni ◽  
The Common

Infestations of Profenusa thomsoni (Konow) have occurred throughout most of northeastern, central, and southern Ontario since 1948 (Sippell, MacDonald, and Wallace, 1956), but before 1955 (Lindquist, 1955), its presence was not recognized because it was confused with the common birch leaf miner, Fenusa pusilla (Lep.).

REVIEW OF NORTH AMERICAN CHRYSOCHARIS (KRATOCHVILIANA) (EULOPHIDAE: CHALCIDOIDEA) NORTH OF MEXICO, ESPECIALLY SPECIES ATTACKING BIRCH CASEBEARER (LEPIDOPTERA: COLEOPHORIDAE) AND BIRCH LEAFMINER (HYMENOPTERA: TENTHREDINIDAE)

1973 ◽  
Vol 105 (10) ◽  
pp. 1309-1349 ◽  
Author(s):  
Carl M. Yoshimoto
Keyword(s):  
North America ◽  
North American ◽  
Fenusa Pusilla ◽  
Species Groups ◽  
North America North

AbstractThis study provides information on the species of Chrysocharis (Kratochviliana) found in North America with special emphasis on the Canadian species attacking the birch casebearer, Coleophora serratella (L.) (= fuscedinella Zeller), and the birch leafminer, Fenusa pusilla (Lepeletier).The genus Chrysocharis Förster in North America north of Mexico consists of two subgenera, Kratochviliana Maláč and Chrysocharis s. str. There are 15 Nearctic species of Kratochviliana, of which 10 species are described herein as new. These are: C. (Kratochviliana) robusta n. sp., C. (K.) incerta n. sp., C. (K.) stipitis n. sp., C. (K.) hirsutiventris n. sp., C. (K.) walleyi n. sp., C. (K.) protolithocolletidis n. sp., C. (K.) milleri n. sp., C. (K.) aluta n. sp., C. (K.) coptodiscae n. sp., and C. (K.) cuspidigaster n. sp. Relationships and distribution of species-groups in North America and Europe are discussed. Keys to subgenera and species and host records are included.

ESTABLISHMENT, DISTRIBUTION, AND IMPACT IN SOUTHERN NEW ENGLAND OF LATHROLESTES NIGRICOLLIS (THOMPSON) (HYMENOPTERA: ICHNEUMONIDAE), AN INTRODUCED PARASITOID OF THE BIRCH LEAFMINER, FENUSA PUSILLA (LEPELETIER) (HYMENOPTERA: TENTHREDINIDAE)

1997 ◽  
Vol 129 (4) ◽  
pp. 601-611 ◽  
Author(s):  
R.G. Van Driesche ◽  
R. Childs ◽  
R.A. Casagrande ◽  
L. Tewksbury
Keyword(s):  
New England ◽  
First Generation ◽  
Release Site ◽  
General Area ◽  
Southern New England ◽  
Fenusa Pusilla

AbstractLathrolestes nigricollis (Thompson) (Hymenoptera: Ichneumonidae) was released in New England against Fenusa pusilla (Lepeletier) in 1979–1980 and again in 1989–1990. By 1991, the parasitoid was widely established in southern New England. From 1979 to 1990 the commonness of leafminers at the original release site in the first generation declined from 50–54% of leaves mined to under 3%. Over 4 years at five sites, parasitism of larval birch leafminers increased between leafminer generations from 10.3% (G1) to 27.6% (G2) to 39.2% (G3). In Massachusetts, parasitism decreased (from 28 to 14%) with increasing distance from the original release site, while corresponding damage increased (from 6% of leaves mined to 33%). In areas local to the original release site (<4 km) parasitism has reduced damage from birch leafminer to inconsequential levels. Some sites in other parts of southern New England, particularly roadside sites, still have high levels of mined leaves in spite of the parasitoid’s presence in the general area.

INTRODUCTION DE PARASITES ICHNEUMONIDES POUR LA LUTTE BIOLOGIQUE CONTRE FENUSA PUSILLA (HYMENOPTERA: TENTHREDINIDAE) AU QUEBEC

1977 ◽  
Vol 109 (12) ◽  
pp. 1545-1548 ◽  
Author(s):  
H.C. Guèvremont ◽  
F. W. Quednau
Keyword(s):  
Lutte Biologique ◽  
Fenusa Pusilla

RésuméEnviron 1,300 Lathrolestes nigricollis (Thompson) et 900 Grypocentrus albipes Ruthe (Hymenoptera: Ichneumonidae), ont été libérés au Québec, en 1974 et 1975, pour lutter contre la petite mineuse du bouleau, Fenusa pusilla (Lep.). Ces deux espèces de parasites européens ont été relâchées dans des peuplements de bouleau gris (Betula populifolla Marsh.) de quatre localités de la Vallée du St-Laurent. Les deux espèces ont engendré une progéniture mâle et femelle malgré l’absence d’accouplement bien caractérisé chez G. albipes. Trois générations de parasitoïdes, dont la première a hiverné, ont été enregistrées à la fin de l’été 1975. L’implantation de parasites de F. pusilla se présente jusqu’à date comme une réussite.

Resistance to the Birch Leafminer Fenusa pusilla (Hymenoptera: Tenthredinidae) within the Genus Betula

2000 ◽  
Vol 93 (6) ◽  
pp. 1810-1813 ◽  
Author(s):  
W. A. Hoch ◽  
E. L. Zeldin ◽  
B. H. McCown
Keyword(s):  
Fenusa Pusilla

The Larva of Profenusa alumna (MacG.) (Hymenoptera: Tenthredinidae)

1959 ◽  
Vol 91 (10) ◽  
pp. 618-625 ◽  
Author(s):  
W. Y. Watson
Keyword(s):  
North America ◽  
Larval Morphology ◽  
Leaf Miners ◽  
Fenusa Pusilla

Among the numerous insects attacking the leaves of birch in North America are Profenusa alumna (MacG.) and Fenusa pusilla (Lep.), both of which are leaf-miners belonging to the tribe Fenusini. Various attempts have been made to separate the known fenusine larvae, all of which are very similar (Yuasa, 1922; Ripper, 1931; Lorenz and Kraus, 1957; Lindquist, 1959), but the larval morphology of F. pusilla only has been described in detail (Friend, 1933; Daviault, 1937). In this paper the larval morphology of P. alumna is described from material collected some 60 miles north of Sault Ste. Marie, Ontario, in 1955.

Sign in / Sign up

Export Citation Format

Share Document