Observations on Pyrus Communis Resistance to Psylla Pyri

Briolini, G.; Cappeli, A.; Rivalta, L.; Rosati, P.

doi:10.17660/actahortic.1988.224.26

Cited by 7 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Quarta & Puggioni 1985, Bell & Stuart 1990, Robert & Raimbault 2005, Sestras et al 2009. One Italian cultivar, Spina Carpi, that was found to be of low susceptibility by Quarta & Puggioni (1985), was regarded to be resistant by other authors, too (Briolini et al 1988, Robert & Raimbault 2005.…”

Section: Introductionmentioning

confidence: 99%

“…Quamme (1984) evaluated several pear species and also a number of European per cultivars from the point of view of psylla resistance and has found some of them to be more or less resistant to this pest. Several authors investigated great many further European pear genotypes in the past twenty five years (Quarta & Puggioni 1985, Briolini et al 1988, Butt et al 1988, Berrada et al 1995, Puterka et al1993, Kocsisné et al 2005, Robert & Raimbault 2005, Bell & Stuart 1990, Bell 1992, 2003, Bell & Puterka 2004, Sestras et al 2009, Bell 2009) and detected several cultivars, clones, wild seedlings, ancient and local genotypes to be resistant or highly tolerant to this pest. Most studies were made with field observations (Quarta & Puggioni 1985, Briolini et al 1988, Berrada et al 1995, Puterka et al1993, Kocsisné et al 2005, Robert & Raimbault 2005, Sestras et al 2009, Bell 2009 and great many studies were made in the laboratory, too, by rearing psylla larvae on plant material (Harris 1973, Butt et al 1988, Bell & Stuart 1990, Bell 1992, 2003, Puterka et al 1993, Bell & Puterka 2004.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Susceptibility of European pear genotypes in a gene bank to pear psylla damage and possible exploitation of resistant varieties in organic farming

Benedek¹,

Szabó²,

Soltész³

et al. 2010

Int. j. hortic. sci.

View full text Add to dashboard Cite

We evaluated 285 pear genotypes (commercial cultivars, ancient local varieties, unnamed local strains, seedlings, wild seedlings) in the largest gene bank of pear in Hungary from the point of view of psylla resistance to explore their possible exploitation in organic farming. We have found some 10 new resistant types (Bókoló körte, Bôtermô Kálmán, Füge alakú körte, Nagyasszony körte, Nyári Kálmán, Rozs nyári körte, Viki körte, Pb-242, Pb-299, 0-632) and 7 highly tolerant ones (Cure-6, Kései Kálmán, Kieffer, Kieffer Éd, Steiner, Téli Kálmán, II. B-3- 6/4, 96-16/5) (Table 1). These made up 3.5 + 2.8 per cent of the investigated genotypes, while 93.7 per cent of them were susceptible to pear psylla damage. Taking earlier and present results into account we can list more than 30 European pear cultivars being resistant or highly tolerant to pear psylla infestation and damage. In fact, the list of resistant and highly tolerant cultivars may serve as a basis selecting pear cultivars fitting to the specific requirements of the organic farming. By the end we can conclude that there is some real hope to exploit some resistant or highly tolerant ancient or local cultivars in organic farming but further investigations are needed to estimate their yield capacity and fruit quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Susceptibility of European pear genotypes in a gene bank to pear psylla damage and possible exploitation of resistant varieties in organic farming

Benedek¹,

Szabó²,

Soltész³

et al. 2010

Int. j. hortic. sci.

View full text Add to dashboard Cite

show abstract

“…that transmits to progeny a 60% resistance to psylla when crossed with P. communis (Harris and Lamb 1973;Quamme 1984); however, no resulting selection from this cross has been commercially grown because fruit quality is still poor. Although some old varieties within the species P. communis like Spina Carpi are psylla resistant and widely used in crosses (Briolini et al 1988), and many P. communis selections from eastern Europe are also psylla resistant (Bell and Stuart 1990;Bell 1992), none of these varieties or selections was commercially successful.…”

Section: Introductionmentioning

confidence: 99%

Probing behaviour of Cacopsylla pyri on a resistant pear selection

Civolani

Grandi

Chicca

et al. 2012

J Applied Entomology

View full text Add to dashboard Cite

European pear psylla Cacopsylla pyri L. (Hemiptera Psyllidae) is one of the worst pests of pear (Pyrus communis L.) in Europe. We investigated probing behaviour in adults and nymphs of C. pyri by full EPG on a psylla‐resistant pear selection, NY 10353. Concerning stylet probing behaviour on the plant surface, the results showed no significant differences between the resistant selection and the susceptible cultivar Bartlett, and no differences were also detected for epidermis and mesophyll resistance in the same conditions. For mesophyll/phloem, no differences were found in adults. However, in nymphs, weak resistance factors (longer stylet penetration and mesophyll salivation) were detected in the resistant selection. In phloem, EPG data indicate strong resistance factors in NY 10353, especially for nymphs and summer‐form adults (longer time before the first phloem ingestion and a lower duration of each phloem ingestion event). No prolonged (>10 min) phloem ingestion was performed by nymphs and adults in the resistant selection. The results support the hypothesis that NY 10353 resistance factors are located in the phloem sap and cause high C. pyri nymph mortality: this could be useful as a basis for further investigations of resistance mechanisms at the metabolic, chemical and genetic levels.

show abstract

“…(Quamme, 1984;Westigard et al, 1970). Cultivars within the European pear species, P. communis L. with moderate to high levels of resistance include the old Italian cultivars Spina Carpi (Quarta and Puggioni, 1985;Briolini et al, 1988), Doyenne du Poitiers, and D'Aoǔt Lamer (Robert et al, 2004(Robert et al, , 2005, and 15 landrace cultivars from Eastern Europe (Bell, 1992(Bell, , 2003Bell and Stuart, 1990). Two wild pears of uncertain parentage were found in Israel to have reduced susceptibility to C. bidens ( Sulc) (Shaltiel-Harpaz et al, 2014).…”

mentioning

confidence: 99%

Effect of Resistant and Susceptible East European Pears on Development and Mortality of the Pear Psylla, Cacopsylla pyricola (Förster)

Bell¹

2015

horts

View full text Add to dashboard Cite

Pear psyllids (Cacopsylla spp., Hemiptera: Psyllidae) are major pests of European pear (Pyrus communis L.) in North America and Europe. In breeding resistant cultivars, a thorough understanding of the nature of host resistance and susceptibility is essential for designing efficient and accurate methods to identify resistant host genotypes. A developmental assay was performed on six genotypes previously identified as highly resistant, moderately resistant, or susceptible to nymphal feeding. Plants were infested with first instars of Cacopsylla pyricola (Förster), and feeding, mortality, and larval stage were observed for 34 days. Host genotypes significantly differed in feeding antixenosis at day 1 after infestation. Differences in antibiosis were also evident, as mortality of nymphs was greater on the feeding-resistant genotypes. There were also differences in the total numbers of surviving psylla and those developing to adults. Survival was directly related to the feeding antixenosis. There were no significant differences among the feeding-susceptible and moderately resistant genotypes in population age structure, except at day 19, reflecting the advanced stage of the few nymphs that did survive. Early feeding antixenosis was associated with mortality, either through a lack of feeding stimulation, feeding inhibition, or because of a direct toxic effect of the resistant plant genotypes. The short-term feeding antixenosis assay is predictive of long-term mortality and, to a lesser extent, with delayed development. ‘Bartlett’ and the wild seedling Y-167 were confirmed as susceptible, ‘Karamanlika’ and NY10352 were confirmed as moderately resistant, and Bacui-1 and Bacui-2 were confirmed as highly resistant.

show abstract

Observations on Pyrus Communis Resistance to Psylla Pyri

Cited by 7 publications

References 0 publications

Susceptibility of European pear genotypes in a gene bank to pear psylla damage and possible exploitation of resistant varieties in organic farming

Susceptibility of European pear genotypes in a gene bank to pear psylla damage and possible exploitation of resistant varieties in organic farming

Probing behaviour of Cacopsylla pyri on a resistant pear selection

Effect of Resistant and Susceptible East European Pears on Development and Mortality of the Pear Psylla, Cacopsylla pyricola (Förster)

Contact Info

Product

Resources

About