The Inheritance of Resistance to Woolly Aphid,<i>Eriosoma Lanigerum</i>(HSMNN.), in The Apple

Knight, R. L.; Briggs, J. B.; Massee, A. M.; Tydeman, H. M.

doi:10.1080/00221589.1962.11514040

Cited by 44 publications

(30 citation statements)

References 7 publications

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“…However, in autumn and winter the aphids survive in the roots and the use of aphidresistant rootstocks has become the most effective means of control (Cummins et al 1974). Resistance characteristics of different apple cultivars to woolly apple aphid have been used to develop resistant rootstocks for use in apple breeding programmes (Staniland 1923(Staniland , 1924Massee 1931;Crane et al 1936;Roach 1937;Knight et al 1962).…”

Section: H02093; Published 12 June 2003 Received 27 November 2002 Acmentioning

confidence: 99%

Electronically monitored stylet penetration pathway of woolly apple aphid,Eriosoma lanigerum(Homoptera: Aphididae), on apple(Malus domestica)

Sandanayaka

Hale

2003

New Zealand Journal of Crop and Horticultural Science

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The probing behaviour of woolly apple aphid, Eriosoma lanigerum (Homoptera: Aphididae), was monitored on woody tissues of the susceptible apple (Malus domestica) cultivar 'Royal Gala', using the Electrical Penetration Graph (EPG) technique. The stylet penetration pathway of the probing aphid was studied by analysing the waveforms of different patterns and voltage levels. The waveforms A, B, C, G, E1, and E2 were recorded from E. lanigerum and have known correlations with probing events of aphid species that feed on soft plant tissues. The differences in frequencies and relative amplitude of A and E1 waveforms are discussed in relation to the probing behaviour of woolly apple aphid on woody plant tissues.

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Section: H02093; Published 12 June 2003 Received 27 November 2002 Acmentioning

confidence: 99%

Electronically monitored stylet penetration pathway of woolly apple aphid,Eriosoma lanigerum(Homoptera: Aphididae), on apple(Malus domestica)

Sandanayaka

Hale

2003

New Zealand Journal of Crop and Horticultural Science

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“…'Northern Spy' (19), a carrier of major gene resistances to woolly apple aphid (Knight et al 1962) and collar rot (Knight & Alston 1969), and four of the MM rootstocks (14-17), which all have this cultivar as a parent, showed no xylem staining in response to inoculation, suggesting that resistance to silverleaf may be easily conferred and that a major gene resistance may be involved. However, the wide range in the depth of xylem staining suggested that resistance to silverleaf was under polygenic control in other cultivars.…”

mentioning

confidence: 99%

Preliminary screening of apple germplasm for resistance to silverleaf infection

Bus

Spiers

Brewster

et al. 1996

New Zealand Journal of Crop and Horticultural Science

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As effective control measures for silverleaf (caused by Chondrostereum purpureum) are lacking, the breeding and selection of resistant cultivars is considered the most effective means of combatting the disease. In this paper the results of preliminary evaluation of apple germplasm for silverleaf resistance are presented. Cuttings of 214 apple (Malus spp.) cultivars, advanced selections, and rootstocks were artificially inoculated with a single isolate of C. purpureum. After 1 month incubation in vitro the depth of xylem staining was measured and used as an assessment of resistance. Cuttings of 23 cultivars were unaffected by the fungus, whereas the xylem tissues of cuttings of 24 cultivars and sports were fully stained. The wide range of the mean depth of xylem staining implied that silverleaf resistance ispolygenic. However, the high levels of resistance of the cultivar 'Northern Spy' and some of its derivatives indicated major gene resistance in the cultivars.

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“…'Northern Spy' has been subject to resistance breeding against insects for decades [28] [62]. 'Northern Spy' is the source of the woolly apple aphid (WAA), Eriosoma lanigerum Hausmann, resistance gene, Er [26], which is now designated as Er1 [63]. It has been used in breeding programs for rootstock resistance to WAA, however, the single-gene, Er1, has low durability for WAA resistance [28].…”

Section: Resistance Indicesmentioning

confidence: 99%

“…devecta Wlk. ), and the Russian wheat aphid (Diuraphis noxia Mordvilko) [26]- [31] as well as diseases such as apple scab (Venturia inaequalis Cooke), powdery mildew (Podosphaera leucotricha Ellis and Everh. ), and fire blight (Erwinia amylovora Burrill) [29] [32] [33] [34].…”

Section: Introductionmentioning

confidence: 99%

Excised Leaf Bioassay: Phenotypic Expression of Natural Resistance in Apple against the Obliquebanded Leafroller

Schwarz¹,

Brunner²

2017

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Different approaches were assessed in the development of a bioassay method that would provide data necessary to evaluate resistance of apple genotypes to the obliquebanded leafroller (OBLR) Choristoneura rosaceana (Harris). A leaf disc method used to evaluate the impact of pesticides on leafrollers resulted in high levels of leaf-abandonment of first and second instar larvae. Inserting leaf petioles into water soaked Oasis foam resulted in a significant reduction in overall leaf weight and diminished the appearance of leaf quality. When leaf petioles were inserted into waterfilled Eppendorf vials, leaf weight increased and overall leaf quality appeared to be good. We opted to adopt this latter whole-leaf bioassay method, which though very time consuming, provided a robust assessment of OBLR life history parameters against different apple genotypes. Across all apple genotypes evaluated, male larvae developed faster than females to pupation as well as to adulthood, while females developed faster as pupae and were heavier than male pupae. OBLR larvae reared on leaves from different apple genotypes displayed significant variability in development time, pupal weight, larval survivorship, and number of offspring produced. We utilized three indices to characterize host acceptance, sub-lethal effects, and lethal effects of OBLR to apple genotypes. Our results indicated that 'Lady', 'Viking', and 'Northern Spy' show some of the highest levels of resistance against OBLR, while 'Granny Smith' was quite susceptible to OBLR and could be used in future studies identifying apple genotypes with relative resistance to OBLR.

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The Inheritance of Resistance to Woolly Aphid,Eriosoma Lanigerum(HSMNN.), in The Apple

Cited by 44 publications

References 7 publications

Electronically monitored stylet penetration pathway of woolly apple aphid,Eriosoma lanigerum(Homoptera: Aphididae), on apple(Malus domestica)

Electronically monitored stylet penetration pathway of woolly apple aphid,Eriosoma lanigerum(Homoptera: Aphididae), on apple(Malus domestica)

Preliminary screening of apple germplasm for resistance to silverleaf infection

Excised Leaf Bioassay: Phenotypic Expression of Natural Resistance in Apple against the Obliquebanded Leafroller

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