Notes on the Parasites of Neodiprion nanulus Schedl (Hymenoptera: Tenthredinidae)

1954 ◽  
Vol 86 (4) ◽  
pp. 167-168 ◽  
Author(s):  
H. C. Coppel
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Pinus Banksiana ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
Pine Sawfly ◽  
Beneficial Insects ◽  
Heavy Infestation

In collecting sawfly eggs, larvae, and cocoons for propagating beneficial insects at the Belleville laboratory, a heavy infestation of a pine sawfly, Neodiprion nanulus Schedl, was discovered in 1942 nine miles north of Belleville, on a 25-year-old plantation of red pine, Pinus resinosa Ait.; Scots pine, Pinus sylvestris L.; and jack pine, Pinus banksiana Lamb.From samples of the eggs collected in the spring of 1943, no parasites emerged.

Notes on Leconte's Sawfly

1952 ◽  
Vol 84 (2) ◽  
pp. 59-61
Author(s):  
A. S. West
Keyword(s):  
Life History ◽  
Pinus Banksiana ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
Pine Needles ◽  
Pine Sawfly ◽  
Neodiprion Lecontei ◽  
Significant Damage

Leconte's sawfly or the red-headed pine sawfly (Neodiprion lecontei Fitch) is a common insect attacking pines in Ontario. Plantations red pine are almost invariably attacked from the time the trees have reached two to four feet in height. Periodically epidemic populations cause significant damage. The life history and habits of the species have heen described by Middleton (2) who states that this insect attacks practically all species of pine as bell as larch. Schaffner (3) also indicates that the larvae feed on a wide variety of pine and occasionally on other conifers. Red pine (Pinus resinosa Ait.) is undoubtedly the usual host, although in Ontario jack pine (Pinus banksiana Lamb.) is sometimes attacked. In 1946 evidence was secured to show that jack pine needles may be selected for oviposition even in an area where red pine foliage is plentiful. (Figure 1).

Preference of Tomicus piniperda (Coleoptera: Scolytidae) parent adults and shoot-feeding progeny adults for three pine species

2001 ◽  
Vol 133 (3) ◽  
pp. 343-353 ◽  
Author(s):  
Nathan W. Siegert ◽  
Deborah G. McCullough
Keyword(s):  
Pinus Banksiana ◽  
Host Preference ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
Choice Test ◽  
Tomicus Piniperda ◽  
Scotch Pine ◽  
Laboratory Bioassay ◽  
Pine Shoot Beetle

AbstractHost preference of the pine shoot beetle, Tomicus piniperda (L.), was investigated in two laboratory choice test studies using red pine (Pinus resinosa Ait.) (Pinaceae), jack pine (Pinus banksiana Lamb.), and Scotch pine (Pinus sylvestris L.). Host preference of parent adult beetles was evaluated using freshly cut, similarly sized logs in a wind tunnel. Parent beetles colonized Scotch pine logs significantly more often when given a choice of Scotch pine and either red pine or jack pine logs, but did not show a preference when presented with red pine and jack pine logs. Host preference of progeny adults was tested in a laboratory bioassay using current-year pine shoots. Shoot-feeding progeny adults initiated tunnels in jack pine shoots significantly more often than in Scotch pine and red pine shoots, and preferred Scotch pine over red pine shoots. Shoots with diameters of 0.4–0.5 cm were attacked most frequently, regardless of species. Results suggest that the two North American pines are suitable hosts, but T. piniperda may be most likely to colonize Scotch pine, a European species. Efforts to detect or monitor T. piniperda populations in the Great Lakes and northeastern regions should focus on areas with abundant Scotch pine brood material. Progeny that emerge from brood material, however, may be as likely to shoot-feed in jack pine as in Scotch pine.

COLEOSPORIUM VIBURNI ON JACK PINE AND ITS RELATIONSHIP WITH C. ASTERUM

1966 ◽  
Vol 44 (9) ◽  
pp. 1117-1120
Author(s):  
G. B. Ouellette
Keyword(s):  
Pinus Banksiana ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
Coleosporium Asterum

Through inoculation tests in the greenhouse and in the field, the previously unknown 0 and I stages of Coleosporium viburni Arth. are shown to occur on jack pine (Pinus banksiana Lamb.). These stages are described and differences in aeciospore morphology which permit distinction on pine of this rust from Coleosporium asterum (Diet.) Syd. are discussed. The description of C. asterum is amended to include differences in aeciospore size between collections on jack and red pine (Pinus resinosa Ait.). The known distribution of C. viburni is summarized.

The Seasonal Development of a Species of Conophthorus (Hopkins) (Coleoptera: Scolytidae) in the Shoots of Jack Pine, Pinus banksiana (Lamb.), in Ontario

1961 ◽  
Vol 93 (10) ◽  
pp. 936-940 ◽  
Author(s):  
H. Herdy ◽  
J. B. Thomas
Keyword(s):  
Pinus Radiata ◽  
Pinus Banksiana ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
Host Tree ◽  
Seasonal Development ◽  
Monterey Pine ◽  
Second Year

Two publications dealing with the seasonal development of species of Conophthorus have appeared in recent years. Lyons (1956) reported on a study of C. resinosae Hopk. in red pine, Pinus resinosa Ait., in Ontario, whereas Ruckes (1958) gave the details of his observations on C. radiatae Hopk. in Monterey pine, Pinus radiata D. Don, in California. Both species attack the developing cones of the host tree, although Lyons found that C. resinosae would develop in the shoots of red pine, and occasionally attacked the second-year cones of jack pine as well. The jack pine-inhabiting species, however, has been found almost exclusively in the shoots; only seven second-year cones that had been mined were collectcd during two years of investigation.

scholarly journals Resistance of Pinus banksiana to the European race of Gremmeniella abietina

2005 ◽  
Vol 81 (2) ◽  
pp. 49-55 ◽  
Author(s):  
G. Laflamme ◽  
R. Blais
Keyword(s):  
Distinctive Feature ◽  
Pinus Banksiana ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
The North ◽  
Pine Seedlings ◽  
Pine Trees ◽  
European Race ◽  
Low Incidence

In the early 1980s, more than 90% of mortality caused by Gremmeniella abietina, European race, was recorded in red pine (Pinus resinosa) plantations 200 km northwest of Montreal, Quebec, Canada. Surrounding jack pines (Pinus banksiana) did not appear to be affected. Consequently, foresters began to plant the affected areas with jack pine seedlings. In 1988, plots of 100 jack pines were established in three of the four selected plantations. As reference, red pine seedlings were planted in 1989 under similar conditions in the fourth plantation. Observations were carried out annually from 1989 to 1992. Mortality of red pine seedlings reached 70% in 1992 while all jack pines on the three experimental sites were free of the disease except for a tip blight, a distinctive feature allowing race identification in the field. The North American race symptoms were present at a very low incidence, but began to increase on site I in 1992. More than 10 years after planting, the jack pine trees still show resistance to the European race of G. abietina while all the red pines died.

Susceptibility of pine plantations to attack by the pine shoot beetle (Tomicus piniperda) in southern Ontario

2004 ◽  
Vol 34 (12) ◽  
pp. 2528-2540 ◽  
Author(s):  
Ryan E Morgan ◽  
Peter de Groot ◽  
Sandy M Smith
Keyword(s):  
Scots Pine ◽  
Pinus Banksiana ◽  
Tree Mortality ◽  
Jack Pine ◽  
Red Pine ◽  
Tomicus Piniperda ◽  
Southern Ontario ◽  
Growth Increments ◽  
Pine Shoot Beetle ◽  
Pine Trees

The pine shoot beetle, Tomicus piniperda (L.) (Coleoptera: Scolytidae), was first discovered in North America in 1992, and by the late 1990s it was associated with tree mortality and stand decline throughout southern Ontario. To assess whether this beetle was capable of killing vigorous trees (a primary pest) or would kill only trees already stressed (a secondary pest), we surveyed 43 sites of varying Scots pine (Pinus sylvestris L.), red pine (Pinus resinosa Ait.), and jack pine (Pinus banksiana Lamb.) composition. Specifically, our objective was to determine the relationship between tree and site characteristics and the number of stem and shoot attacks by T. piniperda in southern Ontario. An abundance of recently dead and low-vigour pine trees increased susceptibility of sites to stem and shoot attacks by T. piniperda. Significant negative linear relationships were detected between the number of beetle attacks and the mean height, age, diameter at breast height, basal area, canopy cover, duff depth, and radial growth increments. Pure red pine sites had significantly fewer attacks than sites of pure Scots pine and mixed jack pine, which was attributed to differences in tree vigour and forest management. Tomicus piniperda appears to be a secondary bark beetle in southern Ontario, successfully colonizing only recently dead pine trees or trees suffering from stress.

PERFORMANCE AND PREFERENCE OF HYLOBIUS RADIUS BUCHANAN, AND H. PALES (HERBST) (COLEOPTERA: CURCULIONIDAE) ON VARIOUS PINUS SPECIES

1993 ◽  
Vol 125 (6) ◽  
pp. 1003-1010 ◽  
Author(s):  
D.W.A. Hunt ◽  
G. Lintereur ◽  
S.M. Salom ◽  
K.F. Raffa
Keyword(s):  
Scots Pine ◽  
Pinus Banksiana ◽  
Pinus Strobus ◽  
Pinus Resinosa ◽  
Feeding Preference ◽  
Jack Pine ◽  
White Pine ◽  
Nitrogenous Fertilizer ◽  
Nitrogen Concentrations ◽  
Hylobius Pales

AbstractThe weevils Hylobius radicis Buchanan and Hylobius pales (Herbst) survived to adulthood more frequently, developed more rapidly, and weighed more as adults when reared on diet containing ground phloem from Scots pine, Pinus sylvestris L., or red pine, Pinus resinosa Aiton, than from jack pine, Pinus banksiana Lamb., or eastern white pine, Pinus strobus L. In feeding tests, both weevils preferred Scots pine, although jack pine was preferred over red and white pine. When reared on diets containing phloem from red pines which had received various amounts of nitrogenous fertilizer, H. radicis and H. pales performed significantly better at elevated concentrations of nitrogen. Hylobius radicis adults exhibited a feeding preference for twigs from red pines containing elevated nitrogen concentrations.

Colonization of Scots, red, and jack pine logs by Tomicus piniperda (Coleoptera: Scolytidae) in Michigan pine stands

2003 ◽  
Vol 33 (11) ◽  
pp. 2238-2244 ◽  
Author(s):  
Nathan W Siegert ◽  
Deborah G McCullough
Keyword(s):  
Scots Pine ◽  
North American ◽  
Pinus Banksiana ◽  
Large Scale ◽  
Jack Pine ◽  
Red Pine ◽  
Tomicus Piniperda ◽  
Large Scale Field ◽  
Pine Stands ◽  
Northern Michigan

We investigated host preference of the pine shoot beetle, Tomicus piniperda (L.) (Coleoptera: Scolytidae), in a large-scale field study in 1997 and 1998. This Eurasian pest, first discovered in North America in 1992, is capable of developing and shoot-feeding in many North American pines. We hypothesized, however, that T. piniperda would preferentially colonize Scots pine (Pinus sylvestris L.), a Eurasian species, more frequently than North American red pine (Pinus resinosa Ait.) and jack pine (Pinus banksiana Lamb.). We placed freshly cut Scots, red, and jack pine logs in Scots, red, and jack pine forest stands each year in southwestern Michigan, where T. piniperda populations have been established for several years, and in central and northern Michigan, where T. piniperda populations were low to rare. Following T. piniperda progeny emergence, logs were retrieved and debarked and T. piniperda attack density was determined for each log. Tomicus piniperda colonized 80%–90% of the pine logs in the southwestern Michigan stands compared with 2%–19% of logs in the central Michigan stands. No logs in the northern Michigan stands were colonized by T. piniperda in either year. In the southwestern pine stands, T. piniperda attack densities were significantly greater on Scots pine logs than on jack and red pine logs, regardless of stand species.

NEW RECORDS AND NOTES OF SALTATORIA (ORTHOPTERA) IN ONTARIO

1942 ◽  
Vol 74 (6) ◽  
pp. 97-98 ◽  
Author(s):  
F. A. Urquhart
Keyword(s):  
North Carolina ◽  
Pinus Banksiana ◽  
New Records ◽  
Pinus Strobus ◽  
Pinus Resinosa ◽  
Jack Pine ◽  
Red Pine ◽  
White Pine ◽  
Southern Ontario

Oecanthus pini Beutenmuller. Since O. pini is known to range from Massachusetts west to Ohio and south to North Carolina, it is not surprising to find it in extreme southern Ontario. The specimens here recorded were found on white pine (Pinus strobus L.), red pine (Pinus resinosa Sol. and jack pine (Pinus Banksiana Lam.) in an area devoted to reforestation.

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