Overwintering of Stethorus punctum punctum (Coleoptera: Coccinellidae) in Apple Orchard Ground Cover

1996 ◽  
Vol 25 (5) ◽  
pp. 972-976 ◽  
Author(s):  
C. M. Felland ◽  
L. A. Hull
Keyword(s):  
Ground Cover ◽  
Apple Orchard

Plant Growth Regulators Suppress Established Orchard Sod and Dandelion (Taraxacum officinale) Population

1989 ◽  
Vol 3 (2) ◽  
pp. 317-321
Author(s):  
Stephen S. Miller ◽  
B. Joe Eldridge
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Cover Crop ◽  
Ground Cover ◽  
Single Species ◽  
Apple Orchard ◽  
Mixed Species ◽  
Matter Production ◽  
Grass Growth

Several plant growth regulators applied to established sod driveways in an apple orchard suppressed growth of the ground cover sufficiently to eliminate one to three mowings. MH at 4.5 or 6.7 kg ai/ha applied spring and fall reduced the growth of a single species sod cover crop, ‘Kentucky 31’ tall fescue, the year after treatment. MH at both rates also reduced the dandelion population growing in the mixed species orchard sod. Paclobutrazol or EPTC applied in the spring before or during initial grass growth reduced dry matter production in the fescue sod cover crop and the number of mowings compared to the mowed and non-mowed control plots.

scholarly journals Long term ground cover options for apple orchards

2005 ◽  
Vol 58 ◽  
pp. 164-168 ◽  
Author(s):  
K.C. Harrington ◽  
M.J. Hartley ◽  
A. Rahman ◽  
T.K. James
Keyword(s):  
Ground Cover ◽  
Apple Orchard ◽  
Festuca Rubra ◽  
Weed Species ◽  
Red Fescue ◽  
Growing Seasons ◽  
Control Option ◽  
Better Than ◽  
Tree Production

A trial was established in a new Hawkes Bay apple orchard in September 1998 to determine how well various ground cover treatments could control weed competition and influence tree production Results are presented after six growing seasons Competition during the first growing season resulted in effects on the trees that were still measurable many years later Dichondra (Dichondra micrantha) gave a good ground cover for the first few years but slowly regressed to hardtocontrol weed species The red fescue (Festuca rubra) plots survived better than dichondra although also had problems Bark mulch needed continual assistance from herbicides Some of the treatments were modified after two growing seasons to investigate establishing ground covers after initially using bark mulches Results are discussed in terms of using any form of ground cover as a weed control option in orchards looking at advantages disadvantages and effects on the weed flora

Bionomics of Tufted Apple Bud Moth (Lepidoptera: Tortricidae) in Apple Orchard Ground Cover

1996 ◽  
Vol 25 (5) ◽  
pp. 963-971 ◽  
Author(s):  
C. M. Felland ◽  
L. A. Hull ◽  
B. A. Barrett
Keyword(s):  
Ground Cover ◽  
Apple Orchard ◽  
Tufted Apple Bud Moth

Competition between Two Species of Mites. I. Experimental Results

1962 ◽  
Vol 94 (4) ◽  
pp. 365-375 ◽  
Author(s):  
W. H. Foott
Keyword(s):  
Ground Cover ◽  
Early Summer ◽  
Apple Orchard ◽  
Panonychus Ulmi ◽  
Residual Effects ◽  
Research Station ◽  
Large Numbers ◽  
Mite Control ◽  
Two Spotted Spider Mite ◽  
Peach Trees

Two principal pests of apple and peach trees in southwestern Ontario are the European red mite, Panonychus ulmi (Koch), and the two-spotted spider mite, Tetranychus telarius (L.). Usually only P. ulmi is present on the trees in large numbers during the spring and early summer, at which time T. telarius lives predominantly on the ground cover. In August, many T. telarius move from the ground cover to the trees, and large numbers of both species may then be present. In mite control investigations in an apple orchard at the Harrow Research Station, T. telarius moved onto the trees, especially in the central plots, regardless of the acaricides previously applied or the numbers of P. ulmi that were or had been present. This phenomenon posed the question of whether the residual effects of acaricides applied to the trees were mainly responsible for the size of P. ulmi populations in the central plots, or whether competition resulting from the ingress of T. telarius was partially responsible.

Soil nitrate levels as influenced by apple orchard floor management systems

1996 ◽  
Vol 76 (3) ◽  
pp. 343-349 ◽  
Author(s):  
B. D. Walsh ◽  
A. F. MacKenzie ◽  
D. J. Buszard
Keyword(s):  
Cover Crop ◽  
Soil Nutrient ◽  
Ground Cover ◽  
Apple Orchard ◽  
Straw Mulch ◽  
Orchard Floor Management ◽  
Manure Compost ◽  
Yield And Quality ◽  
Wild Carrot ◽  
Extractable Soil

Mulches are an alternative to herbicidal control of weeds in orchards. Mulches may affect soil nutrient levels and consequently alter tree growth, fruit yield, and quality. The objective of this study was to determine the effects of cultivation, straw mulch, geotextile mulch, grass cover, a cover crop mixture of lupin and wild carrot, and manure compost mulch on extractable soil nutrients in two newly established dwarf apple orchards in Quebec. In 1992, manure compost and straw mulches resulted in higher soil NO3−-N and K relative to those levels under ground cover. Levels of soil NO3−-N were related to soil water content under any particular mulch. Straw mulch resulted in high July NO3−-N levels and low September levels of soil NO3−-N. Geotextile and cultivation treatments resulted in higher September NO3−-N levels relative to July. Soil under manure compost tended to have higher P levels than soil under other treatments. There was little or no effect of mulch treatments on extractable levels of soil NH4+-N, Ca, or Mg. Key words: Orchard, apple, mulches, geotextiles, straw, nutrients, manure compost, grass sod

scholarly journals Selection of Native Ground Cover Plants for Sod Culture in an Organic Apple Orchard

2015 ◽  
Vol 28 (5) ◽  
pp. 641-647
Author(s):  
Jae-Yun Heo ◽  
Young-Sik Park ◽  
Nam-Yong Um ◽  
Sung-Min Park
Keyword(s):  
Ground Cover ◽  
Apple Orchard ◽  
Selection Of

scholarly journals Potential of Propane Flamers for Reduction of Apple Scab Primary Inoculum on Orchard Ground

HortScience ◽  
1997 ◽  
Vol 32 (2) ◽  
pp. 267-270 ◽  
Author(s):  
H. Desilets ◽  
S. Rochefort ◽  
J. Coulombe ◽  
S. Yelle ◽  
J. Brodeur
Keyword(s):  
Venturia Inaequalis ◽  
Apple Scab ◽  
Treatment Strategies ◽  
Residual Effect ◽  
Ground Cover ◽  
Ground Level ◽  
Thermal Reduction ◽  
Apple Orchard ◽  
Primary Inoculum ◽  
Testing Facility

The potential impact of propane flamers on the development and release of ascosporic inoculum of Venturia inaequalis (Cke.) Wint. from infected dead apple (Malus domestica Borkh.) leaves that overwintered on the soil of an experimental orchard was assessed. Thermal reduction of scab primary inoculum was first conducted under controlled conditions using an indoor testing facility. At the time of ascospore maturation, heavily infected leaves were submitted to temperature rises ranging from 150 to 200 °C with open-flame burners, thus reducing the number of ascospores subsequently released by 76% and 87%, respectively. During Spring 1995, thermal treatments of overwintered dead leaves were performed directly on the ground of an apple orchard with an experimental propane flamer design to generate uniform heat at ground level. Four thermal treatment strategies, involving two dates of flaming and two heat intensities, were tested. Flaming orchard ground, when performed in early May, before significant development of ground cover, reduced the number of ascopores released from infected dead leaves by half. A significant residual effect of the treatments on ascospore ejection was still observed 2 and 4 weeks after the treatments, thus indicating that ascospore maturation inside the leaves may be reduced by heat treatment. These results indicate potential for propane flamers to reduce apple scab primary inoculum in orchards.

scholarly journals Apple aphid, Aphis spp. (Hemiptera: Aphididae), and predator populations in an apple orchard at the non-bearing stage: The impact of ground cover and cultivar

2008 ◽  
Vol 105 (3) ◽  
pp. 521-529 ◽  
Author(s):  
Bruno FRECHETTE ◽  
Daniel CORMIER ◽  
Gerald CHOUINARD ◽  
Franz VANOOSTHUYSE ◽  
Eric LUCAS
Keyword(s):  
Ground Cover ◽  
Apple Orchard ◽  
The Impact
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