Aphid infestation on eight potato cultivars ( Solanum tuberosum L.) in Kenya

Nderitu, JH; Mueke, J. M.

doi:10.1017/s1742758400011656

Cited by 6 publications

(8 citation statements)

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“…The leafhopper, Empoasca sp., usually associated with potato crop and many other crops around the world (Lamp et al, 1994). Aphids are among the most destructive pests on potato plants in the temperate regions (Nderitu and Mueke, 1986) as a vector for the many of plant viruses. The green peach aphid is represents one of the major insect pests affecting potato production, it is distributed worldwide and feeding on over than 400 species of host plants (Raman, 1984;Hooker, 1986, Cloyd et al, 1998.…”

Section: Introductionmentioning

confidence: 99%

Variations in the Susceptibility of some Potato (Solanum tuberosum L.) Cultivars to Infestation with Certain Piercing Sucking Insect Pests

Darwish

2018

Journal of Plant Protection and Pathology

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Potato (Solanum tuberosum L.) is an economically important vegetable crop all over the world. The piercing sucking insect pests are serious pests threatening potato plantations in many countries. The present investigation contributes to the knowledge in the susceptibility of certain potato cultivars to infestation with these insects in Beheira Governorate, Egypt. Five global potato cultivars currently used in Egypt's potato production were evaluated through two successive seasons (summer plantations) in field experiments for their susceptibility to sucking insect infestation. The experiment was designed in a completely randomized block design and all data were analyzed using the SAS® program. None of the tested potato cultivars was immune or highly resistant to the tested insect pests. The cultivars Banba and Diamante were found quite resistance to piercing sucking insect pests. The cultivar Herms was found as moderately susceptible while Spunta and Cara were found to be the most susceptible cultivars. The green lacewing, Chrysoperla carnea; seven-spotted lady beetle, Coccinella septempunctata; eleven spotted lady beetle, Coccinella undecimpunctata and the pirate bug, Orius sp are the most important predators which associated with the sucking insects pests on the potato cultivars.

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Section: Introductionmentioning

confidence: 99%

Variations in the Susceptibility of some Potato (Solanum tuberosum L.) Cultivars to Infestation with Certain Piercing Sucking Insect Pests

Darwish

2018

Journal of Plant Protection and Pathology

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“…В Кении позднеспелый сорт Roslin Tana слабо заселяется тлями (главным образом бахчевой тлей Aphis gossy pii Glover), что обусловлено не морфологическими особенностями растений, а физиологическими факторами: тли предпочитают питаться на стареющих листьях ран неспелых сортов (Nderitu, Mueke, 1986). В лабораторных опытах Roslin Tana обладал антибиозом и к M. persicae.…”

Section: устойчивость генетических ресурсов картофеля к тлямunclassified

Aphid resistance in potato

Radchenko¹

2017

Vestn. VOGiS

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The problem of aphid resistance of potato genetic resources is discussed. Generally, resistance to the green peach aphid (Myzus persicae Sulzer) and the potato aphid (Macrosiphum euphorbiae Thomas) is analyzed in all available literature sources. The Solanum tubero sum L. gene pool contains very few resistant forms. Accessions highly resistant to M. persicae were revealed among 36 of 86 examined wild potato species. The largest number of resistant forms was found among S. bulbocastanum Dun., S. tarijense Hawkes, S. infundi buliforme Phil., S. canasense Hawkes and S. stolonife rum Schlechtd. et Bché. The forms highly resistant to M. euphorbiae belong to 24 of 85 studied species, namely to 10 of 18 series; the species S. bulbocasta num, S. stoloniferum and S. demissum Lindl. include the maximum number of resistant forms. Wild species accessions with specific and group resistance to aphids were revealed. Glandular pubescence of leaves and stems in such species as S. polyadenium Greenm., S. tarijense and S. berthaultii Hawkes is considered as the main mechanism of resistance. Hybrids between S. tuberosum and S. berthaultii were widely used in breeding programs; however, the presence of glandular trichomes was linked to a number of undesirable characters. It is expected that association between the trichome conditioned insect resistance of S. berthaultii and undesirable agronomic traits could be overcome with the use of molecular genetic methods. Studies of the antifeedant activity of potato glycoalkaloids and their aglucons produced controversial results. In numerous works the aphid resistance of potato is connected with plant physiological state. Differences among wild potato accessions in the localization of resistance factors (leaf surface, epidermis, mesophyll, floema) were found that were indicative of differences of resistance mechanisms in the studied forms. Works on investigating induced aphid resistance in potato have great theoretical and practical significance.Key words: genetic resources of potato; potato aphid; green peach aphid; resistance; glandular pubescence; plant breeding.Обсуждается проблема устойчивости генетических ресурсов картофеля к тлям. Практически во всех литературных источниках анализируется резистентность к персиковой (Myzus persicae Sulzer) и большой картофельной (Macrosiphum euphorbiae Thomas) тлям. Генофонд Solanum tuberosum L. относительно беден устойчивыми формами. Высокоустойчивые к M. persicae образцы выявлены среди 36 из 86 изученных диких видов картофеля. Наибольшее число устойчивых форм найдено в пределах видов S. bulbocasta num Dun., S. tarijense Hawkes, S. infundibuliforme Phil., S. canasense Hawkes и S. stoloniferum Schlechtd. et Bché. Высокоустойчивые к M. euphorbiae формы относятся к 24 из 85 изученных видов, к 10 из 18 серий; наибольшее число устойчивых форм содержат виды S. bulbocastanum, S. stoloniferum и S. demissum Lindl. Выявлены образцы диких видов со специфической и групповой устойчиво-стью к тлям. В качестве основного механизма устойчивости к M. persicae и M. eup...

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“…Majority of farmers in Kenya are smallholders whose knowledge of virus management is often limited (Gildermacher et al, 2011).In addition, certified seed tubers have been costly and scarce (Gildermacher et al 2011) due to high incidence of diseases, mainly viruses in seed production systems (Nderitu and Mueke, 1986;Machangi et al, 2004;Muthomi et al, 2009). …”

Section: Management Strategies Of Potato Viruses In Kenyamentioning

confidence: 99%

Potato virus Y (PVY) and potato virus X (PVX) resistance breeding in Kenya: applicability of conventional approaches

Onditi¹,

Njoroge²

2013

ABJNA

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Potato virus Y (PVX) and potato virus X (PVX) are among the most important viruses of the potato (Solanum tuberosum L.) crop worldwide. The use of virus resistant varieties is considered the most effective and sustainable long term way of minimizing crop losses associated with the viruses. In Kenya, major potato varieties grown do not have effective host resistance to the two viruses. Among the different types of virus resistances available, extreme resistance has been found to be durable and most effective. This type of resistance protects the plant against all strains of the virus and has been found particularly for PVY and PVX. Nature of inheritance of extreme resistance genes make it easy to transfer to cultivated varieties through conventional cross breeding. Screening for the two viruses is cheap, simple and straight forward due to the fewer number of genes involved. In major potato breeding programmes around the world, this type of resistance has been incorporated in many cultivated potato varieties with reported reduction in yield losses. Focus on sourcing of suitable parents, hybridization and screening for the two viruses can make a significant contribution in management of the two locally important viruses while reducing virus related crop losses.

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Aphid infestation on eight potato cultivars ( Solanum tuberosum L.) in Kenya

Cited by 6 publications

References 10 publications

Variations in the Susceptibility of some Potato (Solanum tuberosum L.) Cultivars to Infestation with Certain Piercing Sucking Insect Pests

Variations in the Susceptibility of some Potato (Solanum tuberosum L.) Cultivars to Infestation with Certain Piercing Sucking Insect Pests

Aphid resistance in potato

Potato virus Y (PVY) and potato virus X (PVX) resistance breeding in Kenya: applicability of conventional approaches

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