inoculum situation

Listing 1 - 10 from 14 for inoculum situation

Fruit Pathology - Powdery Mildew
... overwintering shoots and secondary lesions on young foliage leads to a rapid buildup of inoculum. Secondary infection cycles may continue until susceptible tissue is no longer available. Since leaves ... terminal shoots (photo 2-2) as an indicator of potential inoculum pressure. This may not be the actual inoculum situation, however, because some mildewed buds do not survive the winter while ...
www.caf.wvu.edu

Fruit Disease Focus - April, 1998 - Apple Scab
... in leaves and fruit on the orchard floor. Ascospores are the major source of primary inoculum and are produced within pseudothecia that develop in leaves during the winter months. In ... Extension Service personnel to determine the onset of ascospore maturity. An awareness of the scab inoculum situation during the previous year and in adjacent abandoned or commercial orchards may influence early- ...
www.caf.wvu.edu More from this site

Botrytis Gray Mold in Greenhouse Floral Crops HYG-3070-96
... material should be removed from the greenhouse so that it is not a source of inoculum for the rest of the house. Infected plant material should not be allowed to sit ... specialists in your state for the chemical treatment that may be right for your particular situation. (For additional information please refer to Ohio State University Extension Bulletin 538, Insect, Mite, and ...
ohioline.osu.edu

APSnet Feature - Return of an Old Problem:Fusarium Head Blight of Small Grains
... disease can be accessed through their web site. The FHB situation in North America was reviewed in feature articles in Plant ... to be the principal primary inoculum in nature; however, both ascospores and conidiospores are effective as inoculum (33). Even if no FHB ... takes large differences in inoculum to produce measurable changes in FHB; one study found that a10-fold increase in inoculum caused only ...
www.apsnet.org

The BSPP - Publications - BSPP News 41 Spring 2002
... the absence of host crops and cannot be eliminated artificially (e.g. by fumigation). Secondly, inoculum multiplication in susceptible host crops (primarily Beta species) can be extremely rapid. A ten ... virus’ own RNA polymerase produces a dsRNA, so that SDE1 may be redundant in this situation. Resistance to viruses David has other interests in virus resistance besides silencing, stemming from his ...
www.bspp.org.uk

Michigan Grape Society Newsletter, Volume 4 Issue 3, July 2003
... pruning earlier in the winter may be hazardous. This winter may well be such a situation. What can the grower do? First, delay all pruning on these stressed vineyards just as ... vineyards than in manually pruned vineyards. This is attributed to the large amount of overwintered inoculum in older wood retained on the vines in this system. Dense foliage in some vineyards ...
www.canr.msu.edu

ECSONG: A Nut Growers' Manual - Species
... Nut Grove have not yet developed well largely because of vandalism, though lack of sufficient inoculum may be a contributing factor. 5. Site Preparation (9) Conifers require less intensive site ... for both timber and nut production. 10. Fertilization All hardwoods, especially in a non-forest situation, require nutrient supplements. A foliage or soil test should be done annually. Do not fertilize ...
www.ecsong.org

Asian Soybean Rust - Frequently Asked Questions IV: Cropping Systems and Cultural Practices
... for control. Some believe it is more difficult to achieve coverage in a narrow-row situation. However, if the correct sprayer, nozzle technology, and application methods are used, adequate coverage ... the south, latermaturity groups are more likely to experience exposure to ASR and/or higher inoculum levels than early-maturity groups. Early-maturing cultivars will enter into the reproductive stages ...
www.ext.vt.edu

Welcome to ISPPWeb
... released by a number of Agricultural Institutions. It is therefore important to report any disease situation that is affecting your yields to Agricultural Extension Agents who operate in your communities. Ask ... . It is generally effective to rotate cassava with cereals to help reduce the levels of inoculum (spores etc.) on fields. It is advisable not to plant cassava continuously for three years ...
www.isppweb.org

Welcome to ISPPWeb
... land heavily infested with both. Susceptible and resistant responses to challenge with soil-borne virus inoculum were clearly evident in the plots. 3. At Gatersleben, we visited the genebank of ... with mild cassava mosaic strains to prevent infection by severe ones in a post epidemic situation (Owor, Uganda); using resistant cultivars and phytosanitary measures to control sweet potato virus disease ...
www.isppweb.org More from this site

These listings are filtered
View all for inoculum situation