Assessing phenological synchrony between the Chinese sawfly, Cephus fumipennis (Hymenoptera: Cephidae), its egg-larval parasitoid, Collyria catoptron (Hymenoptera: Ichneumonidae), and the North American sawfly, Cephus cinctus: implications for biological control

2015 ◽  
Vol 148 (4) ◽  
pp. 482-492 ◽  
Author(s):  
Tatyana A. Rand ◽  
Wendell L. Morrill ◽  
Justin B. Runyon ◽  
Kim A. Hoelmer ◽  
Thomas G. Shanower ◽  
...  
Keyword(s):  
Biological Control ◽  
Western Montana ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus ◽  
The North ◽  
Larval Parasitoid ◽  
Emergence Patterns ◽  
Novel Host ◽  
Diapause Development ◽  
Chinese Wheat

AbstractMany pest and beneficial insects overwinter as larvae in a state of diapause, with development resuming in the spring. In these cases, rates of post-diapause development of parasitoids must be synchronised with the vulnerable life stages of their hosts. Phenological asynchrony between introduced parasitoids and their targeted hosts has limited the success of some biological control efforts. Here, we assess the potential synchrony between Collyria catoptron Wahl (Hymenoptera: Ichneumonidae), a parasitoid of the Chinese wheat stem sawfly, Cephus fumipennis Eversmann (Hymenoptera: Cephidae), which is being considered as a biological control against a novel host species, Cephus cinctus Norton, in North America. We compared development timing and emergence patterns of both native and exotic species of sawflies with that of the parasitoid. We found that the mean number of days between termination of larval diapause and adult eclosion varied by less than one day across species, and patterns of emergence were also similar. The rate of development of this egg-larval parasitoid was within the range necessary to attack C. cinctus eggs. Furthermore, the development of C. cinctus from western Montana, United States of America most closely matched that of the parasitoid, suggesting western Montana as a possible release area.

Using matrix population models to inform biological control management of the wheat stem sawfly, Cephus cinctus

2017 ◽  
Vol 109 ◽  
pp. 27-36 ◽  
Author(s):  
Tatyana A. Rand ◽  
Courtney E. Richmond ◽  
Edward T. Dougherty
Keyword(s):  
Biological Control ◽  
Population Models ◽  
Matrix Population Models ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus ◽  
Control Management

scholarly journals Introduction and establishment of Microplitis croceipes a larval parasitoid of heliothis in North Island pine forests

2000 ◽  
Vol 53 ◽  
pp. 328-333 ◽  
Author(s):  
T.J.B. Herman ◽  
M.M Davidson
Keyword(s):  
Biological Control ◽  
Pinus Radiata ◽  
Pine Forests ◽  
Microplitis Croceipes ◽  
The Third ◽  
The North ◽  
Larval Parasitoid ◽  
Recent Outbreak ◽  
Pine Trees ◽  
Helicoverpa Armígera

Heliothis (Helicoverpa armigera) is a periodic pest of young pine trees (Pinus radiata) In response to a recent outbreak of this pest Microplitis croceipes a parasitoid of heliothis larvae was introduced into forests of the North Island volcanic plateau to augment biological control of heliothis A total of 13600 M croceipes pupae were released at monthly intervals over three seasons (199598) Successful overwintering of M croceipes populations confirmed establishment in the forests Mean monthly parasitism reached 107 in the third season Surveys at points radiating out from the release sites indicated that M croceipes was spreading at approximately 1 km per year

DISCOVERY OF THE WHEAT STEM SAWFLY (CEPHUS CINCTUS NORTON) (HYMENOPTERA: CEPHIDAE) IN ASIA, WITH THE PROPOSAL OF A NEW SYNONYMY

1996 ◽  
Vol 128 (2) ◽  
pp. 347-348 ◽  
Author(s):  
Michael A. Ivie ◽  
Alexey G. Zinovjev
Keyword(s):  
Great Plains ◽  
North American ◽  
Geographic Origin ◽  
North American Species ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus ◽  
Pest Status ◽  
The North ◽  
Conducting Research ◽  
New Synonymy

While conducting research on the geographic origin of the wheat stem sawfly (Cephus cinctus Norton), we compared North American specimens to specimens of Eurasian Cephus spp., and discovered that specimens currently placed as C. hyalinatus Konow from Siberia are conspecific with the North American species. Given the pest status of the North American populations, which attack wheat and other cereals in the upper Great Plains (Weiss and Morrill 1992), this discovery has important implications for the management of the species. Discussion of these implications will be provided elsewhere (Ivie 1996).

Notes on Parasites of the Wheat Stem Sawfly, Cephus pygmaeus (L.) (Hymenoptera: Cephidae) from Continental Europe

1961 ◽  
Vol 93 (8) ◽  
pp. 714-717 ◽  
Author(s):  
R. W. Smith
Keyword(s):  
Biological Control ◽  
Western Canada ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus ◽  
Research Institute

Larvae of the European wheat stem sawfly, Cephus pygmaeus (L.), in hibernacula in wheat stubs were obtained from Russia and Sweden in the fall of 1959 by the Entomology Research Institute for Biological Control in a renewed attempt to find parasites for use against the wheat stem sawfly, Cephus cinctus Nort., in Western Canada. An earlier attempt to colonize the parasite Collyria calcitrator (Grav.) from England failed in spite of early promise of success (Smith, unpublished reports). Though Collyria spp. were expected to predominate in the Continental collections, their different geographical origins opened the prospect of finding different species or strains better suited to Canadian conditions. There was also the possibility of discovering additional parasites suitable for trials in Canada.

Effect of Time of Seeding Apex Wheat on Infestation and Sex Ratio of the Wheat Stem Sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae)

1952 ◽  
Vol 84 (3) ◽  
pp. 90-92 ◽  
Author(s):  
L. A. Jacobson ◽  
C. W. Farstad
Keyword(s):  
Sex Ratio ◽  
Field Experiment ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus

In 1945 a field experiment was designed at the Lethbridge laboratory to augment data on the effect of the time of seeding on infestation by the wheat stem sawfly, Cephus cinctus Nort. At that time one of the recommendations for the control of this insect was to delay seeding wheat until after May 15. The resulting crop escaped infestation because of the retarded plant during the period of the sawfly flight.

The Status of Coccinella septempunctata L. and its Varieties divaricata Oliv. and confusa Wied.

1962 ◽  
Vol 94 (12) ◽  
pp. 1341-1343 ◽  
Author(s):  
V. Sudha Rao
Keyword(s):  
Biological Control ◽  
Coccinella Septempunctata ◽  
Silver Fir ◽  
Eastern Himalayas ◽  
North West ◽  
The North ◽  
Large Numbers ◽  
The Status ◽  
Commonwealth Institute ◽  
Indian Station

A survey was recently undertaken by the author with Dr. V. P. Rao, Entomologist-in-charge, Indian Station, Commonwealth Institute of Biological Control, Bangalore, India, for natural enemies of Adelges spp. attacking silver fir (Abies spp.) and spruce (Picea spp.) in the North-West and Eastern Himalayas. In the course of this survey it was found that the coccinellids Coccinella septem-punctata L., C. septempunctata L. var. divaricata Oliv. and C. septempunctata L. var. confusa Wied, were three of the most common predators of Adelges spp. in both these areas. With a view to sending laboratory-reared material to Canada for trial against Adelges piceae Ratz., which is a serious pest there, large numbers of these Coccinellids were collected in the fir and spruce forests to provide breeding material.

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