A Likely Pyrus ×Calleryana × Communis (Rosaceae) Hybrid Found in Connecticut

Rhodora ◽  
10.3119/20-17 ◽  
2020 ◽  
Vol 122 (990) ◽  
Author(s):  
Bryan A. Connolly ◽  
Katana Boutiette
Keyword(s):  
Pyrus Calleryana

Efficacy of five herbicide treatments for control of Pyrus calleryana

2020 ◽  
pp. 1-6
Author(s):  
James T. Vogt ◽  
David R. Coyle ◽  
David Jenkins ◽  
Chris Barnes ◽  
Christopher Crowe ◽  
...  
Keyword(s):  
Loblolly Pine ◽  
Foliar Application ◽  
The United States ◽  
Invasive Pest ◽  
Active Ingredients ◽  
Old Field ◽  
Control Efficacy ◽  
Pyrus Calleryana ◽  
Callery Pear ◽  
Cut Stump

Abstract Callery pear (Pyrus calleryana Decne.) is rapidly spreading in the United States, gaining attention in the last two decades as a serious invasive pest. Recommended control methods include foliar, basal bark, cut stump, and hack-and-squirt application of herbicides, but there are few published studies with replicated data on efficacy. Four readily available herbicidal active ingredients and a combination of two active ingredients were tested for control efficacy against P. calleryana in old-field areas and loblolly pine (Pinus taeda L.) understory. Basal bark applications (triclopyr, triclopyr + aminopyralid), foliar applications (glyphosate, imazapyr), and a soil application (hexazinone) effectively killed P. calleryana with the exception of hexazinone at one site, where rainfall may not have been optimal. Foliar application of glyphosate provided the most consistent control. Our results demonstrate efficacy of registered herbicide formulations for P. calleryana control in two geographic locations and two habitat types. The need for development of integrated pest management programs for P. calleryana is discussed.

scholarly journals Enraizamento de estacas lenhosas de porta-enxertos de pereira sob nebulização intermitente

2002 ◽  
Vol 24 (2) ◽  
pp. 583-585 ◽  
Author(s):  
IVES MASSANORI MURATA ◽  
WILSON BARBOSA ◽  
CARMEN SILVIA VIEIRA JANEIRO NEVES ◽  
JOAQUIM ANTONIO MARTINS FRANCO
Keyword(s):  
Pyrus Calleryana

Pesquisou-se o enraizamento de estacas lenhosas dos porta-enxertos de pereira: Taiwan Nashi-C (Pyrus calleryana Decaisne), D'água (P. communis L) e Manshu Mamenashi (P. betulaefolia Bunge), na ausência de reguladores de crescimento. As estacas lenhosas, medindo 20 cm de comprimento e contendo de 3 a 4 gemas, foram submetidas aos tratamentos com e sem incisão na parte basal e mantidas por 60 dias em ambiente de nebulização intermitente. As estacas de 'Taiwan Nashi-C' e 'D'água' apresentaram 53,8 e 51,8 % de enraizamento, respectivamente, nos tratamentos com e sem incisão. Em estacas de 'Manshu Mamenashi', verificaram-se excesso de brotações foliares e índice de enraizamento quase nulo. O método de incisão na base das estacas influenciou significativamente no enraizamento do porta-enxerto 'D'água'.

scholarly journals Weed Control for Pot-In-Pot Production using Preemergence Herbicides

2005 ◽  
Vol 23 (4) ◽  
pp. 204-211
Author(s):  
Donna C. Fare ◽  
Patricia Knight ◽  
Charles H. Gilliam ◽  
James Altland
Keyword(s):  
Weed Control ◽  
Acer Rubrum ◽  
Herbicide Tolerance ◽  
Green Ash ◽  
Red Maple ◽  
Weed Species ◽  
Magnolia Grandiflora ◽  
Pyrus Calleryana ◽  
Local Site ◽  
Preemergence Herbicides

Abstract Four experiments were conducted to investigate herbicides currently labeled for field and/or container production for use in pot-in-pot production. Southern magnolia (Magnolia grandiflora L.), red maple (Acer rubrum Spach. ‘Autumn Flame’ and ‘Franksred’), ornamental pear (Pyrus calleryana Decne. ‘Bradford’ and ‘Cleveland Select’), river birch (Betula nigra L.), green ash (Fraxinus pennsylvanica Marsh. and F. pennsylvanica Marsh.‘Marshall's Seedless’), and zelkova (Zelkova serrata Spach ‘Village Green’) were evaluated for herbicide tolerance. Barricade 65WG, Surflan 4AS, and Pendulum 60WDG, used alone or in combination with Princep and Gallery 75 DF, had no adverse effect on tree shoot growth or trunk caliper growth when applied as a directed band application. Weed control varied depending upon local site conditions, herbicide rate and weed species.

scholarly journals Evaluation of seed viability of Callary pear (Pyrus calleryana) in Poznań

Steciana ◽  
2017 ◽  
Vol 21 (1) ◽  
pp. 3-5
Author(s):  
Leszek Bednorz ◽  
Anna Llaka
Keyword(s):  
Seed Viability ◽  
Pyrus Calleryana

PROPAGATION OF PYRUS CALLERYANA SEL. D6 BY IN VITRO CULTURE

1992 ◽  
pp. 145-148
Author(s):  
V. ROSSI ◽  
G. DE PAOLI ◽  
P. DAL POZZO
Keyword(s):  
In Vitro Culture ◽  
Pyrus Calleryana
Sign in / Sign up

Export Citation Format

Share Document