A New Pest of Apple in New Brunswick

1963 ◽  
Vol 95 (3) ◽  
pp. 291-291
Author(s):  
C. W. Maxwell ◽  
D. B. Finnamore
Keyword(s):  
New Brunswick ◽  
First Record ◽  
Apple Orchard ◽  
Junior Author ◽  
New Pest ◽  
Research Institute

In June, 1962, a type of bug injury was found by the junior author to be prevalent in a well cared for apple orchard of 800 trees at Debec, Carleton County, N.B. Adults of the bug causing the injury were collected in early July and determined by Dr. L. A. Kelton, Entomology Research Institute, Ottawa, as Lygidea mendax Reut., commonly known as the apple redbug. This is the first record of this species in New Brunswick.

A New Record of Leptinillus validus (Horn) (Coleoptera: Leptinidae) in North America

1961 ◽  
Vol 93 (11) ◽  
pp. 1010-1010
Author(s):  
R. C. Clark
Keyword(s):  
North America ◽  
New Brunswick ◽  
New Record ◽  
Castor Canadensis ◽  
First Record ◽  
Lake George ◽  
Research Institute

In November, 1957, several specimens of adult beetles were collected from beaver pelts taken in the Lake George area of New Brunswick by a local trapper, Mr. Donald Millican. These were referred to me and were later identified as Leptinillus validus (Horn), an ectoparasite of the beaver, Castor canadensis Kuhl, by Mr. W. J. Brown of the Entomology Research Institute, Ottawa. This is the first record of the species having been found in New Brunswick.

THE APPLE LEAF MIDGE, DASINEURA MALI (DIPTERA: CECIDOMYIIDAE), IN NEW BRUNSWICK APPLE ORCHARDS

1978 ◽  
Vol 110 (12) ◽  
pp. 1363-1364 ◽  
Author(s):  
A. W. MacPhee ◽  
D. B. Finnamore
Keyword(s):  
New Brunswick ◽  
Apple Orchard ◽  
River Valley ◽  
Apple Orchards ◽  
Saint John ◽  
York County ◽  
Saint John River Valley ◽  
Dasineura Mali ◽  
Research Institute

The apple leaf midge, Dasineura mali (Kief.), was first noted in a New Brunswick commercial apple orchard at Waweig, Charlotte County, in 1964. Adults collected there in 1965 were identified by Biosystematics Research Institute. The midge's first appearance in the Saint John River Valley was in 1968 in York County. Since 1968 this insect has spread to infest orchards up river as far as Woodstock and down river to orchards in the Gagetown-Queenstown area.

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.

A Note on Stibaropus tabulatus, Schiö. (Hem., Pent.), a new Pest of Tobacco in South India

1930 ◽  
Vol 21 (1) ◽  
pp. 29-31 ◽  
Author(s):  
P. N. Krishna Ayyar
Keyword(s):  
Life History ◽  
South India ◽  
First Record ◽  
Economic Importance ◽  
Considerable Depth ◽  
New Pest

Stibaropus tabulatus, Schiödte, a Pentatomid bug of the subfamily Cydninae, is remarkable in having the unusual habit of living underground and attacking the roots of tobacco, and to the best of the writer's knowledge this is the first record of this species as an insect of economic importance; though Lefroy has mentioned the allied S. molginus, Schiödte, in his “Indian Insect Life” (p. 674) as having been observed at the roots of a palm in South India at a considerable depth below the surface. As the insect under report was something of a novelty and was a pest of such a valuable crop like tobacco, the writer made special efforts to study its life-history and habits, and it is the aim of this paper to place on record the results of his observations and studies, though he regrets that they are somewhat fragmentary in character.

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.

The impact of kaolin clay sprays on leaf gas exchange of Ginger Gold apple trees in New Brunswick

2006 ◽  
Vol 86 (Special Issue) ◽  
pp. 1377-1381 ◽  
Author(s):  
J. P. Privé ◽  
L. Russell ◽  
A. LeBlanc
Keyword(s):  
Stomatal Conductance ◽  
Gas Exchange ◽  
New Brunswick ◽  
Leaf Gas Exchange ◽  
Net Photosynthesis ◽  
Apple Orchard ◽  
Kaolin Clay ◽  
Gas Exchange Parameters ◽  
Leaf Physiology ◽  
The Impact

A field trial was conducted over two growing seasons in a Ginger Gold apple orchard in Bouctouche, New Brunswick, Canada to examine the impact of Surround (95% kaolin clay) on leaf gas exchange [net photosynthesis (Pn), stomatal conductance (gs), intercellular CO2 (Ci) and transpiration (E)]. In 2004, a greater rate of Pn and gs was achieved at the higher than at the lower frequency of Surround applications. This was particularly notable at leaf temperatures exceeding 35°C. In 2005, no significant (P ≤ 0.05) differences among leaf residue groupings [Trace (< 0.5 g m-2), Low (0.5 to 2 g m-2), and High (≥ 2 g m-2)] were found for the four leaf gas exchange parameters at leaf temperatures ranging from 25 to 40°C. It would appear that under New Brunswick commercial orchard conditions, the application of Surround favours or has no effect on leaf gas exchange. Key words: Surround, particle film, leaf physiology, photosynthesis, stomatal conductance, intercellular CO2, transpiration

scholarly journals Wintercresses (Barbarea W.T. Aiton, Brassicaceae) of the Canadian Maritimes

2019 ◽  
Vol 133 (2) ◽  
pp. 118
Author(s):  
Colin J. Chapman ◽  
C. Sean Blaney ◽  
David M. Mazerolle
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Exotic Species ◽  
Native Species ◽  
First Record ◽  
Atlantic Canada ◽  
Maritime Provinces ◽  
Area Of Occupancy ◽  
Herbarium Collections

We conducted a review of herbarium collections of the Wintercress genus (Barbarea W.T. Aiton) from the Maritime provinces. Most specimens previously determined to be the regionally rare native species Erect-fruit Wintercress (Barbarea orthoceras Ledebour) are in fact the uncommon exotic Small-flowered Wintercress (Barbarea stricta Andrzejowski). The latter species is here reported as new to Atlantic Canada, where it is scattered but widespread in the three Maritime provinces. Only three collections (two from New Brunswick and one from Nova Scotia) were confirmed as B. orthoceras. Its known range extent and area of occupancy in the Maritimes has been significantly revised, and B. orthoceras is now considered potentially extirpated in New Brunswick and extremely rare in Nova Scotia. One collection from Nova Scotia was referred to another rare exotic species, Early Wintercress (Barbarea verna (Miller) Ascherson), which represents the first record for the Maritimes.

scholarly journals First record of Eurasian Water-milfoil, Myriophyllum spicatum, for the Saint John River, New Brunswick

2019 ◽  
Vol 132 (3) ◽  
pp. 231-237 ◽  
Author(s):  
Meghann Bruce ◽  
Tommi Linnansaari ◽  
R. Allen Curry
Keyword(s):  
New Brunswick ◽  
Native Species ◽  
Myriophyllum Spicatum ◽  
River System ◽  
First Record ◽  
Large River ◽  
Ecosystem Functions ◽  
Macrophyte Species ◽  
Saint John ◽  
Invasive Aquatic Plants

Eurasian Water-milfoil (Myriophyllum spicatum L.) is regarded by conservation practitioners as one of the most challenging invasive aquatic plants to manage. Owing to its broad tolerance to environmental conditions, vegetative propagation, and rapid establishment and growth, M. spicatum introductions have the potential to drastically alter macrophyte species assemblages via a loss of native species and their respective ecosystem functions. Following the discovery of a single specimen of M. spicatum in the Saint John River, near Fredericton, New Brunswick (Canada) we further investigated the localized distribution of this nonindigenous species. Thirteen areas were identified as potential M. spicatum habitat and were surveyed by wading or snorkeling. Specimens of M. spicatum were collected and morphological identifications were verified through genetic analyses (ITS2; rbcLa). The results of our investigation confirm the presence of M. spicatum at six different locations within the Saint John River. Here we discuss the implications of this discovery in the context of the contiguous aquatic habitats along a large river system.

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