<i>OLESICAMPE GENICULATAE</i>, A NEW PALAEARCTIC ICHNEUMONID PARASITE OF <i>PRISTIPHORA GENICULATA</i> (HYMENOPTERA: TENTHREDINIDAE)

Quednau, F. W.; Lim, K. P.

doi:10.4039/ent115109-2

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…Schneid., grown as ornamentals (Clark et al 1974). A host-specific and solitary endoparasitoid, Olesicampe geniculatae Quednau and Lim, was successfully established in Quebec following introductions from its native Europe during 1976Europe during -1978 (Quednau and Lim 1983;Quednau 1990). Olesicampe geniculatae prefers to attack the first-and second-instar larvae of its univoltine host which is killed only just prior to pupation in the spring.…”

Section: Introductionmentioning

confidence: 99%

ESTABLISHMENT OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE) TO CONTROL THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE), IN NEWFOUNDLAND

et al. 1994

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Mated female Olesicampe geniculatae Quednau and Lim were released in St. John’s, Newfoundland, to establish a biological control against the mountain ash sawfly, Pristiphora geniculata (Hartig). Two hundred and fifty-nine females were released during 1981–1984 in a field cage constructed over a mountain ash tree and provided with thousands of host larvae; 171 females were released outside the cage in 1984. A second open release of 368 P. geniculata cocoons, obtained as larvae from the field cage and presumably parasitized by O. geniculatae, was made in 1986 at Pasadena in western Newfoundland. Olesicampe geniculatae rapidly established in the St. John’s area where host populations dropped to insignificant levels by 1990. Island-wide monitoring during 1989 and 1990 indicated that O. geniculatae had spread to the west and south coasts, at rates as high as 50 km per year. Effective and persistent suppression of P. geniculata by O. geniculatae is anticipated.

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Section: Introductionmentioning

confidence: 99%

ESTABLISHMENT OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE) TO CONTROL THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE), IN NEWFOUNDLAND

et al. 1994

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“…wasp, Olesicampe benefactor Hinz. For control of the mountain ash sawfly in Canada, the Commonwealth Institute of Biological Control (CIBC) in DelCmont, Switzerland, has selected another European host-specific Olesicampe species, recently described as 0. geniculatae (Quednau and Lim 1983), as the most efficient natural enemy for introduction. Both 0. benefactor and 0. geniculatae are internal solitary larval parasites (Pschorn-Walcher and Zinnert 1971), and both are host-specific.…”

Section: Introductionmentioning

confidence: 99%

“…The incubation period of the parasite egg is short. The embryo is fully formed inside the egg the 4th day after oviposition at 21°C (Quednau and Lim 1983). Olesicampe geniculatae remains in the first larval instar while the host insect is still feeding and enters the second and third larval instar shortly before cocoon formation of the host.…”

Section: Introductionmentioning

confidence: 99%

INTRODUCTION, PERMANENT ESTABLISHMENT, AND DISPERSAL IN EASTERN CANADA OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE), AN IMPORTANT BIOLOGICAL CONTROL AGENT OF THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE)

Quednau¹

1990

Can Entomol

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From 1976 to 1978, 1300 mated females of Olesicampe geniculatae Quednau and Lim were released near Quebec City during a severe infestation of the mountain ash sawfly, Pristiphora geniculata (Hartig). Both cage and open releases were made. The interactions among the mountain ash sawfly, the imported primary parasite O. geniculatae, and the indigenous hyperparasite Mesochorus globulator (Thunb.), and the effect of O. geniculatae on the host population during and after the establishment phase, are reported. In 1984, O. geniculatae was recovered from all over southern Quebec. Parasitism ranged from 6 to 94%. Concurrently, infestation levels by the mountain ash sawfly declined significantly, and since 1985, the insect has almost disappeared in Quebec. With an annual spread of about 50 km per year after successful establishment, O. geniculatae now covers an area 1000 km in diameter. No major infestation by the mountain ash sawfly has been recorded in Quebec during the past 7 years. The introduction of O. geniculatae is rated as a complete success in classical biological control.

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“…Instar 1 (Fig. 1) of S. megalodontis resembled the ichneumonid mandibulate-caudate type (Quednau and Lim 1983). The head capsule was a dark shade of yellow.…”

Section: Resultsmentioning

confidence: 97%

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

Lyons

1999

Can Entomol

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The 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.

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OLESICAMPE GENICULATAE, A NEW PALAEARCTIC ICHNEUMONID PARASITE OF PRISTIPHORA GENICULATA (HYMENOPTERA: TENTHREDINIDAE)

Cited by 4 publications

References 2 publications

ESTABLISHMENT OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE) TO CONTROL THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE), IN NEWFOUNDLAND

ESTABLISHMENT OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE) TO CONTROL THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE), IN NEWFOUNDLAND

INTRODUCTION, PERMANENT ESTABLISHMENT, AND DISPERSAL IN EASTERN CANADA OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE), AN IMPORTANT BIOLOGICAL CONTROL AGENT OF THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE)

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

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