susceptible cultivars

Listing 1 - 10 from 200 for susceptible cultivars

Apple Powdery Mildew, HYG-3001-94
... symptoms are not usually seen unless the disease has built up to high levels on susceptible cultivars. Diseased fruit has a fine network type surface blemish called russetting. Causal Organism and ... powdery mildew. Jonathan, Granny Smith, Mutsu (Crispin), Rome, Cortland, Baldwin, Monroe and Idared are very susceptible and should be avoided if powdery mildew is a problem. Most other varieties may ...
ohioline.osu.edu

April Newsletter
... defoliate plants by mid-season. Control starts with growing cultivars resistant to black spot. Most garden catalogs will identify cultivars resistant to black spot and other rose diseases. For the ... solution. For those dedicated enough to follow a weekly fungicide spray program, black spot susceptible cultivars offer a challenge. Fungicide sprays should be used when conditions favor black spot, which ...
radicr.home.mindspring.com

OREP - Development of Transgenic Soybean with Cyst Nematode Resistance
... Many pathogenic races of SCN exist, with at least four in Ontario, and conventionally-bred cultivars of resistant soybean last usually less than three years before resistance is broken (Nieblack, ... There are few SCN-resistant cultivars suitable for southern regions of Canada, and where they are available, they are generally not as productive as the best susceptible cultivars on non-infested land ( ...
res2.agr.gc.ca

Hybridizing Mite Resistant Fuchsias
... growth regenerates alongside affected growth. Frequency of affected shoots is very low compared with susceptible cultivars, even when gall mite infestations are abundant. This defines an intermediate range of ... " can be misleading and equivocal, used in different ways by different growers. Often, susceptible cultivars with strong F. cordifolia traits, such as ‘Chang’ and ‘Baby Chang’, and many ...
www.americanfuchsiasociety.org

ICPP98 Paper Number 6.136
... of this tremendous yield advantage of winter chickpea is only possible through the development of cultivars resistant to ascochyta blight and tolerant to cold. There is a continuous effort at ICARDA ... with 5 moderately resistant and 6-9 as susceptible. The degree of disease pressure in the on-farm trials were monitored using two susceptible cultivars (Ghabl and Ghab 2) planted as demonstration trials ...
www.bspp.org.uk

Crop Diseases in Soybean 1 (Purdue University)
... spacing and tall, bushy cultivars in fields with disease history. Avoid excessive irrigation before flowering. Cultivars with cv. Williams in parentage may be more susceptible. SOYBEAN Disease Name: Brown ... 3-5 years. Inoculum Dispersal: Soilborne hyphal fragments and spores. Management: Resistant cultivars. Avoid susceptible cultivars for 3 years. Click on an image to display it in larger detail. ...
www.btny.purdue.edu

Fruit Pathology - Disease Diagnostic Key
... cause net-like pattern of russetting on fruit. Fungus may appear on twigs of susceptible cultivars. POWDERY MILDEW (Podosphaera leucotricha). 16b. Foliage associated with a major branch or occasionally ... . The varieties Sunhigh, Afterglow, Collins, Merrill 49'er, RedGlobe, and Washington are very susceptible. BACTERIAL SPOT (Xanthomonas pruni) 10c. Leaves develop chlorotic spots, lines, and rings as ...
www.caf.wvu.edu

Fruit Disease Focus - Minor Diseases of Apples - August, 1998
... cultivars. X-Spot I. Introduction: Although now uncommon, incidence of X-spot as high as 86 percent was reported on unprotected 'Golden Delicious' and 'Rome Beauty' fruit in 1950. Other susceptible cultivars ... . IV. Monitoring: Symptoms of this minor disease appear late in the season on susceptible cultivars such as 'Golden Delicious', 'Rome', 'Jonathan', 'Stayman Winesap' (photo 2-43), and 'York'. ...
www.caf.wvu.edu More from this site

Fire Blight of Apples, Crabapples and Pears, HYG-3002-94
... family. Quince, crabapple, mountain ash, spirea, hawthorn, pyracantha, and cotoneaster are all susceptible. Cultivars within some of these species are resistant. Symptoms Blossom and twig blight ... . Table 1: Relative susceptibility of common apple and pear cultivars to Fire Blight Highly susceptible Moderately susceptible Moderately resistant Apple Beacon Dutchess Jonafree Cortland Empire Melrose ...
ohioline.osu.edu

Brooklyn Botanic Garden: Goldenrods—Three Cultivars to Set Your Autumn Garden Ablaze
... BOOK PRESSROOM WEDDINGS AND CATERED EVENTS Home » Gardening Information » Wildflower Gardening Goldenrods—Three Cultivars to Set Your Autumn Garden Ablaze Plants & Gardens News Volume 13, Number 3 | Fall 1998 ... years as needed. Second, the only down side of planting goldenrods is that they are susceptible to rust, a fungal disease of the leaves. Make sure to give them good air ...
www.bbg.org

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