ERRATUM: GRAIN APHIDS IN NEW BRUNSWICK III. APHID POPULATIONS IN HERBICIDE-TREATED OAT FIELDS

1966 ◽  
Vol 44 (2) ◽  
pp. 343-343
Author(s):  
Jean B. Adams ◽  
Margaret E. Drew
Keyword(s):  
New Brunswick ◽  
Aphid Populations

NATIVE PREDATORS AND THE CONTROL OF POTATO APHIDS

1986 ◽  
Vol 118 (11) ◽  
pp. 1177-1183 ◽  
Author(s):  
Gilles Boiteau
Keyword(s):  
Experimental Design ◽  
New Brunswick ◽  
Potato Crop ◽  
Minor Role ◽  
Pitfall Trapping ◽  
Aphid Control ◽  
Potato Aphids ◽  
Selective Insecticide ◽  
Aphid Populations

AbstractExperiments were done in fields of potato in Fredericton, New Brunswick, in 1981, 1982, and 1984 to determine the effect of native predators on the abundance of aphids. The populations of predators were altered by pitfall trapping within plots enclosed by polythene barriers and by applying a selective insecticide. The abundance of aphids was monitored in the enclosed plots and in unenclosed areas serving as control. The experimental design was successful at significantly reducing the numbers of Carabidae in the enclosures compared with the open plots. Aphid populations tended to be larger in the plots with depleted populations of Carabidae than in the control areas and were significantly larger in the plots where the insecticide depleted the populations of canopy level predators. These results suggest that the Carabidae play a relatively minor role in aphid control on the potato crop compared with specific predators.

Grain aphids in New Brunswick. IV. Effects of malathion and 2,4-D amine on aphid populations and on yields of oats and barley

1969 ◽  
Vol 47 (3) ◽  
pp. 423-426 ◽  
Author(s):  
Jean B. Adams ◽  
Margaret E. Drew
Keyword(s):  
New Brunswick ◽  
Rhopalosiphum Padi ◽  
Aphid Infestation ◽  
Laboratory Conditions ◽  
Different Levels ◽  
Aphid Populations

Aphid populations on oats (Fundy and Stormont) and barley (Charlottetown 80) were studied in the field and yields of these grains examined under the different levels of aphid infestation resulting from applications of malathion and 2,4-D amine to the crop.Two species of aphid, Rhopalosiphum padi (L.) and Macrosiphum avenae (Fab.), occurred on the grains, and the greatest populations developed on barley. In all cases highest numbers were associated with applications of 2,4-D amine. Applications of this herbicide to similar aphids under laboratory conditions showed that the species differed in their responses as measured by reproduction and longevity.One malathion treatment, applied when aphids were dispersing into the field, reduced ensuing aphid numbers on oats by 29% and on barley by 64%. Yields of oats were increased by 47% and of barley 32% when malathion alone was used. When malathion and 2,4-D amine were applied together, aphid results and yield results were confusing.In all treatments, aphid populations collapsed abruptly once the grain panicle emerged, and in no case did aphids persist more than 10 weeks on either grain.

GRAIN APHIDS IN NEW BRUNSWICK: III. APHID POPULATIONS IN HERBICIDE-TREATED OAT FIELDS

1965 ◽  
Vol 43 (5) ◽  
pp. 789-794 ◽  
Author(s):  
Jean B. Adams ◽  
Margaret E. Drew
Keyword(s):  
New Brunswick ◽  
No Reduction ◽  
Aphid Populations

From similar initial populations, aphid infestations became higher in herbicide-treated areas of oats than in similar untreated areas. Fewer coccinellids were present in these treated areas. The inclusion of an aphicide with the herbicide applications held subsequent populations of aphids to the level of those in untreated plots. Although populations as high as 250 aphids per tiller occurred, no reduction in yields of grain or straw was found in 1962 or 1963.

Book Reviews

2014 ◽  
Vol 2 (1) ◽  
pp. 80-95
Author(s):  
Ulrike Flader ◽  
Vera Ecarius-Kelly ◽  
Clemence SCALBERT-YÜCEL ◽  
Michael M. Gunter ◽  
Tozun Bahcheli ◽  
...  
Keyword(s):  
New Brunswick ◽  
Economic Impacts ◽  
Publishing House ◽  
Rutgers University ◽  
Ashgate Publishing ◽  
Kurdish Question ◽  
Newcastle Upon Tyne

Cengiz Gunes and Welat Zeydanlıoğlu (eds.), The Kurdish Question in Turkey: New Perspectives on Violence, Representation and Reconciliation, London: Routledge, 2014, 288 pp., (ISBN: 978-0-415-83015-7).Almas Heshmati and Nabaz T. Khayyat, Socio-Economic Impacts of Landmines in Southern Kurdistan, Newcastle upon Tyne: Cambridge Scholars Publishing, 2013, 341 pp., (ISBN: 978-1-4438-4198-6).Estelle Amy de la Bretèque, Paroles Mélodisées: Récits épiques et lamentations chez les Yézidis d’Arménie (Melodised speech. Heroic songs and laments among the Yezidis of Armenia), Paris: Classiques Garnier, 2013, 230pp., (ISBN: 978-2-8124-0787-1).Diane E. King, Kurdistan on the Global Stage: Kinship, Land, and Community in Iraq, New Brunswick and London: Rutgers University Press, 2014. 286 pp., (ISBN: 9780813563534).Michael M. Gunter and Mohammed M.A. Ahmed (eds.), The Kurdish Spring: Geopolitical Changes and the Kurds, Costa Mesa: Mazda Publishers, 2013, 344 pp., (ISBN: 978-1568592725).Derya Bayır, Minorities and Nationalism in Turkish Law, Surrey: Ashgate Publishing House, 2013, 314 pp., (ISBN: 9781409420071).

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