ACTIVITY AND DISTRIBUTION OF CARABIDAE, ARACHNIDA, AND STAPHYLINIDAE IN NEW BRUNSWICK POTATO FIELDS

1983 ◽  
Vol 115 (8) ◽  
pp. 1023-1030 ◽  
Author(s):  
Gilles Boiteau
Keyword(s):  
Biological Control ◽  
Species Composition ◽  
New Brunswick ◽  
Flight Activity ◽  
Potato Pests ◽  
Faunal Survey

AbstractA 3-year faunal survey of insecticide-free potato fields revealed that Carabidae were the most abundant ground arthropods followed by Arachnida and Staphylinidae. Generic and species composition of Carabidae did not vary substantially from year to year but abundance did. The arthropods were distributed along a gradient decreasing with distance from the edge of the field closest to the woodland. Results of yellow pan trappings indicated that all types of Carabidae present in the pitfalls could fly but that flight activity was variable among genera. More than 50% of Staphylinidae and 85% of the Carabidae were trapped in the yellow pans at the time of field colonization in June. The significance of these findings in relation to the potential of the arthropods for natural biological control of potato pests is discussed.

Studies of Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae): XI. Cremifania nigrocellulata Cz. (Diptera: Chamaemyiidae), An Introduced Predator in Eastern Canada

1962 ◽  
Vol 94 (11) ◽  
pp. 1171-1175 ◽  
Author(s):  
R. C. Clark ◽  
N. R. Brown
Keyword(s):  
Biological Control ◽  
New Brunswick ◽  
Eastern Canada ◽  
Introduced Predator ◽  
Woolly Aphid ◽  
Commonwealth Institute ◽  
Adelges Piceae ◽  
Research Institute

Cremifania nigrocellulata Cz. is one of the complex of predators that attacks A. piceae (Ratz.) in Europe. After studies on its morphology, biology, and distribution were made by Delucchi and Pschorn-Walcher (1954), C. nigrocellulata was reared in Europe by the Commonwealth Institute of Biological Control and introduced into New Brunswick via the Entomology Research Institute for Biological Control, Belleville, Ontario.

scholarly journals Species Composition of Thrips (Thysanoptera: Thripidae) in Strawberry High Tunnels in Denmark

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 208
Author(s):  
Helene Nielsen ◽  
Lene Sigsgaard ◽  
Sverre Kobro ◽  
Nauja L. Jensen ◽  
Stine K. Jacobsen
Keyword(s):  
Biological Control ◽  
Species Composition ◽  
Thrips Tabaci ◽  
Field Margins ◽  
Thrips Species ◽  
High Tunnels ◽  
Major Pest ◽  
Production Knowledge ◽  
Sampling Times

Thrips are a major pest in protected strawberry production. Knowledge of thrips species composition could be instrumental for improved thrips management, but very little is known about which species are present in strawberries grown in high-tunnels in Denmark. Thrips (adults and larvae) were sampled in two strawberry tunnels of the cultivars Murano and Furore from May to August 2018, in the middle and in the edges of the tunnels. The most abundant thrips species found in the tunnels were Frankliniella intonsa and Thrips tabaci adults. Frankliniella intonsa were also the most frequently found species of the immatures sampled, followed by T. tabaci larvae, and other species. The number of thrips differed between the two cultivars, sampling times and location in the tunnel. Frankliniella intonsa was more abundant in the middle of the tunnels, while T. tabaci was more abundant in the edge of the tunnels adjacent to the field margins. The number of thrips peaked by the end of July. Both chemical and biological control should consider species composition and occurrence; hence, a fundamental first step for thrips management is to identify the species present on the target crop.

A Note on the Occurrence of Sipha agropyrella Hille Ris Lambers (Homoptera: Aphidae) in Manitoba

1957 ◽  
Vol 89 (2) ◽  
pp. 79-79 ◽  
Author(s):  
A. G. Robinson
Keyword(s):  
Biological Control ◽  
North America ◽  
New Brunswick ◽  
New Record ◽  
Mental Hospital ◽  
Control Unit ◽  
First Record

On October 16, 1956, during a routine monthly check of the Nurses Residence, Selkirk Mental Hospital, Selkirk, Manitoba, a professional exterminator noticed “thousands” of very small insects in a basement office. A number were submitted to the writer for identification and found to be aphids, which were later very kindly identified by W. R. Richards, Insect Systematics and Biological Control Unit, Ottawa, as Sipha agropyrella (H.R.L.). Richards stated (in litt.): “This is the first record of this species west of Ontario.” MacGillivray (1956) records the finding of this species in 1950 in New Brunswick as a new record for North America.

Studies of Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae) X. Field Identification of Laricobius erichsonii Rosen. (Coleoptera: Derodontidae)

1962 ◽  
Vol 94 (2) ◽  
pp. 191-193 ◽  
Author(s):  
N. R. Brown ◽  
R. C. Clark
Keyword(s):  
Biological Control ◽  
North America ◽  
New Brunswick ◽  
Control Program ◽  
The Past ◽  
Considerable Promise ◽  
Field Identification ◽  
Woolly Aphid ◽  
Adelges Piceae ◽  
Field Workers

Over the past ten years a number of exotic predators have been introduced into New Brunswick and other parts of North America as part of a biological control program against the balsam woolly aphid, Adelges piceae (Ratz.). Several of these have become established and others show considerable promise. As introductions continue it becomes exceedingly important that field workers be able to distinguish rapidly all stages of introduced and native predators. Field identification characters for some species (Chamaemyiidae and Syrphidae) have been published in previous papers in this series (Brown and Clark, 1956, 1960; Clark and Brown, 1957) and have been found to be very useful.

Species composition, distribution, and summer emergence phenology of stoneflies (Insecta: Plecoptera) from Catamaran Brook, New Brunswick

1996 ◽  
Vol 74 (7) ◽  
pp. 1260-1267 ◽  
Author(s):  
Donna J. Giberson ◽  
Heather L. Garnett
Keyword(s):  
Atlantic Salmon ◽  
Species Composition ◽  
New Brunswick ◽  
Timber Harvest ◽  
Atlantic Canada ◽  
Base Line ◽  
Composition Distribution ◽  
Cone Type ◽  
Emergence Traps ◽  
Discharge Patterns

Stonefly (Plecoptera) emergence was investigated between May and September of 1993 and 1994 in Catamaran Brook, New Brunswick, as part of a base-line study to evaluate the effects of timber harvest on Atlantic salmon habitat in Atlantic Canada. Thirty-one stonefly species representing seven families were identified from Catamaran Brook, of which 8 were new provincial records. Eight species, all in the families Chloroperlidae and Leuctridae, were common in both years. The cone-type emergence traps used in this study appeared to adequately sample most stonefly species except the Perlidae. There was a pronounced seasonal progression of species emerging from the brook that was generally constant for both years. However, the abundance and timing of stonefly emergence were related to both temperature and discharge patterns. Generally earlier emergence in 1994 than 1993 was probably related to warmer water in 1994 than 1993, and lower abundance in 1994 was probably related to a reduction in habitat due to unusually low water in that year.

TEMPERATURE-DEPENDENT SURVIVAL AND HATCHING RATE OF EGGS OF SEVEN SPECIES OF COCCINELLIDAE

1992 ◽  
Vol 124 (2) ◽  
pp. 305-312 ◽  
Author(s):  
B.D. Frazer ◽  
R.R. McGregor
Keyword(s):  
Biological Control ◽  
Species Composition ◽  
Thermal Adaptation ◽  
Hatching Rate ◽  
Biological Control Agents ◽  
Temperature Dependent ◽  
Thermal Requirements

AbstractThe eggs of seven species of locally occurring coccinellids were reared at constant temperatures. The survival of eggs to hatching, rate, and thermal requirements for hatching were determined. The results were used to evaluate the importance of thermal adaptation of coccinellids in selecting them as biological control agents and in determining the relative species composition of locally occurring faunas of coccinellids.

Results of comparative studies of insecticides in Potato cultivation technology

2020 ◽  
Author(s):  
E.V. Strelkova E.V. ◽  
Keyword(s):  
Species Composition ◽  
Colorado Potato Beetle ◽  
Technology Use ◽  
Growing Season ◽  
North East ◽  
The North ◽  
Potato Beetle ◽  
Cultivation Technology ◽  
Potato Pests ◽  
Chemical Groups

The article considers the issue of improving an element of potato cultivation technology - use of the VIRIY KS insecticide. What is the direct effect of insecticides of various chemical groups on the species composition and number of potato pests, as well as their dynamics during the growing season of the crop. The biological and economic effectiveness of the VIRIUM KS insecticide on potatoes against the potato Colorado potato beetle in the North-East of Belarus is evaluated.

The Morphology, Life History and Habits of Betulaphis quadrituberculata (Kalt.) on Birch in New Brunswick (Homoptera: Callaphididae)

1964 ◽  
Vol 96 (9) ◽  
pp. 1172-1184 ◽  
Author(s):  
I. W. Varty
Keyword(s):  
Life History ◽  
North America ◽  
New Brunswick ◽  
Flight Activity ◽  
Betula Papyrifera ◽  
Rate Of Development ◽  
Population Pattern ◽  
Almost All ◽  
Seasonal Population ◽  
Seasonal History

AbstractBetulaphis quadrituberculata (Kalt.) is an inconspicuous leaf-feeding aphid on birches in North America and Europe, now recorded on Betula papyrifera Marsh and B. alleghaniensis Britt. in the Province of New Brunswick. Some aspects of its morphology are described in order to complement the incomplete accounts already in the literature. The viviparae are seasonally polymorphic in size and color.In New Brunswick the aphid has an annual monoecious holocycle comprising up to 10 generations. The seasonal history and habits of the various morphs are described. The insect disperses mainly by the flight activity of the stem-mothers in spring, but in succeeding generations almost all individuals are apterous and rather sedentary in habit. Data on rate of development and fecundity are presented and briefly discussed as factors contributing to the seasonal population pattern.

scholarly journals Triad forest management: Scenario analysis of forest zoning effects on timber and non-timber values in New Brunswick, Canada

2006 ◽  
Vol 82 (4) ◽  
pp. 496-511 ◽  
Author(s):  
Michael K Montigny ◽  
David A MacLean
Keyword(s):  
Forest Management ◽  
Species Composition ◽  
New Brunswick ◽  
Scenario Analysis ◽  
Effective Means ◽  
Scenario Planning ◽  
Intensive Management ◽  
Short Supply ◽  
Reserve Area ◽  
Intensively Managed

Triad forest management is a form of zoning under which land is allocated into extensively managed, intensively managed, and reserve zones, with management tailored in each zone such that all objectives are met collectively across the landbase. We evaluated the utility of triad management on the privately-owned, industrial, 190 000-ha Black Brook District in New Brunswick, Canada. Scenario planning was used to simulate effects of 64 allocation scenarios (0–15% reserve area, 39–64% intensively managed softwood, and 21–61% extensively managed) on forest species composition, age class distribution, timber growing stock, harvest levels, and old forest habitat. Softwood harvest in the short term (30 years) was insensitive to reserve and intensive management allocations but doubled in the long term as the intensive management zone was increased from 39% to 64%.Hardwood harvest was sensitive only to area in reserves, declining as the area allocated to reserves was increased. Abundance of old forest generally increased with the amount of reserve area, but varied by species composition. Management of this landbase is focused on timber production, and intensive management clearly provided major increases in timber yield. It also could permit setting aside additional reserve area; old mixedwood habitat in particular is in short supply. These were hypothetical scenarios, and the landowner is not necessarily pursuing any of modeled strategies. Although the range of desired values may differ on other landbases, a scenario analysis of alternative zoning is an effective means to select a management strategy. Key words: scenario planning, intensive forest management, reserves, extensive forest management, triad, land allocation, forest zoning

Temporal changes in species composition of mixedwood stands in northwest New Brunswick: 1946–2008

2010 ◽  
Vol 40 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Luke J. Amos-Binks ◽  
David A. MacLean ◽  
Jeremy S. Wilson ◽  
Robert G. Wagner
Keyword(s):  
Species Composition ◽  
New Brunswick ◽  
Choristoneura Fumiferana ◽  
Abies Balsamea ◽  
Canopy Cover ◽  
Balsam Fir ◽  
Aerial Photographs ◽  
Development Patterns ◽  
Declining Species ◽  
Stand Conditions

Patterns of softwood (SW) – hardwood (HW) change from 1946 to 2006 in 32 unharvested mixedwood (MW) stands in northern New Brunswick were analyzed using aerial photographs (1946, 1966, 1982, and 2006), sampled, and related to disturbance and stand conditions. Five stand development patterns were identified based on 1946 SW content (70%–80%, termed SW versus 30%–60%, termed MW) and change in SW content from 1946 to 2006 (SW-stable, SW-declining, MW-fluctuating, MW-stable, or MW-declining). Species composition was surprisingly changeable over this 60-year period, with change in SW content varying from +18% to –62%. High canopy cover reduction from 1946 to 1966 resulted from balsam fir ( Abies balsamea (L.) Mill.) mortality due to old age and a 1950s spruce budworm ( Choristoneura fumiferana Clem.) outbreak plus birch ( Betula sp.) dieback. SW-stable stands that maintained SW composition from 1946 to 2006 (+7%) had more red spruce ( Picea rubens Sarg.) than all other classes in which SW declined by 15%–47%. SW-declining stands were located on southerly aspects (189°) and had higher mean elevations (423 m) than other classes. Results suggest that balsam fir – tolerant HW MW stands may be naturally transitional due to disturbance, species, and stand conditions, which has significant implications for forest management designed to maintain static proportions of MW and SW stands.

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