New Record of Aphididae (Hemiptera) and Coccinellidae (Coleoptera) Species Associated with Shadehouse-Cultivated Lettuce on a South African Highveld Farm

Pretorius, Rudolph J.; Louw, S.; Venter, Philip A.

doi:10.4001/003.018.0212

Cited by 5 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Smith et al (2008) collected predominantly N. ribisnigri in organic lettuce in the central coast of California. Pretorius et al (2010) found five aphid species associated with shadehouse-cultivated lettuce, Acyrthosiphon lactucae (Passerini), Aphis craccivora (Koch), M. euphorbiae, M. persicae, and N. ribisnigri. Saethre et al (2011), studying the biodiversity of aphids and their natural enemies in several plant agroecosystems in Benin, reported the aphid species A. craccivora Koch, Aphis gossypii Glover, and M. persicae infesting lettuce plants.…”

Section: Resultsmentioning

confidence: 99%

“…Pretorius et al (2010) found five species of predators associated with shadehouse-cultivated lettuce grown in South Africa, Scymnus levaillanti (Mulsant), Hippodamia variegata (Goeze), Exochomus flavipes (Thunberg), Cheilomenes luneta (Fabricius) and Harmonia sp. Farsi et al (2014) surveyed the natural enemies of N. ribisnigri in lettuce and reported the coccinellid S. levaillanti (Mulsant.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Diversidad de artrópodos y moluscos asociados al cultivo de lechuga

Zawadneak

Schuber

Lavoranti

et al. 2017

Idesia

View full text Add to dashboard Cite

Despite the economic importance of lettuce, no studies have examined the diversity of species associated with this crop that could contribute to the development of an ecological management of phytophagous arthropods and mollusks. This study was aimed at determining the predominant species of arthropods and mollusks in two lettuce cultivars (curly-leaf Veronica and smooth-leaf Elisa). A total of 9,638 specimens of arthropods and mollusks was collected and identified to 27 constant species, 17 classified as accessory and two as accidental species. Seven species of aphids were identified, with Nasonovia ribisnigri, Uroleucon sonchi, and Uroleucon ambrosiae as the most frequent, as well as three species of thrips, predominantly Caliothrips phaseoli and Frankliniella schultzei. Other phytophagous arthropods and mollusks occurred at frequencies below 10%. Among natural enemies, predators of the families Syrphidae (2.74%), Coccinellidae (1.66%), Staphylinidae (0.79%) and Carabidae (0.17%) and parasitoids of the order Hymenoptera (0.93%) were observed. Of the total specimens collected, 53.87% are considered phytophagous species, mostly aphids (40.82%), followed by thrips (11.35%). The aphid N. ribisnigri was the main pest species, as it forms colonies in the lettuce head and can spread plant viruses. Phytophagous pests preferred smooth over curly leaves.Key words: Lactuca sativa, pests, natural enemies, constancy index, biological control, biodiversity. RESUMEN A pesar de la importancia económica de la lechuga, no hay estudios que hayan analizado la diversidad de especies asociadas a este cultivo que podrían contribuir al manejo ecológico de los artrópodos fitófagos y moluscos. Este estudio tuvo como finalidad determinar las especies predominantes de artrópodos y moluscos en dos cultivares de lechuga (Veronica de hoja rizada y Elisa de hoja lisa

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Diversidad de artrópodos y moluscos asociados al cultivo de lechuga

Zawadneak

Schuber

Lavoranti

et al. 2017

Idesia

View full text Add to dashboard Cite

show abstract

“…Harmonia axyridis has been shown to be multivoltine, with four overlapping generations per year in Greece (Katsoyannos et al 1997) and two in Japan and Great Britain (Osawa 2000;Brown et al 2008). Multivoltinism in H. axyridis could be considered an advantage in terms of its population growth over the indigenous E. flavipes which is univoltine (Pretorius et al 2010). The situation here is similar to that in Great Britain, where the dominant H. axyridis is multivoltine and the native coccinellids C. septempunctata and Adalia bipunctata (L.) are univoltine in most years (Majerus 1994;Brown et al 2011).…”

Section: Resultsmentioning

confidence: 99%

The ExoticHarmonia axyridis(Pallas) (Coleoptera: Coccinellidae) and Other Coccinellids in Selected Vineyards of the Western Cape Province, South Africa

et al. 2017

View full text Add to dashboard Cite

Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) is an exotic ladybird, first recorded in South Africa in 2004, where it was introduced factitiously. In this study the seasonal occurrence of H. axiridis and other coccinellids were monitored in four vineyards and the adjacent windbreaks over three growing seasons in the Western Cape Province, South Africa. Harmonia axyridis made up the highest mean number of coccinellids collected per site over the collecting period, followed by Hippodamia variegata, Cheilomenes lunata, Exochomus flavipes and Micraspis sp. No indigenous parasitoids were observed attacking H. axyridis. The numbers of H. axyridis on the vines were negatively correlated with temperature but positively with rainfall. In view of the migration of H. axyridis from the vines in December, they appear not to pose any risk of contaminating grapes during harvest and tainting wine as most wine grapes are harvested from January onwards.

show abstract

“…Although the diversity of pests and natural enemies in lettuce grown in field and hydroponic conditions has been widely studied 34 , 35 , 49 – 52 , we are unaware of published studies on the occurrence of these organisms in aquaponic lettuce. This is an essential step in the development of an innovative system such as aquaponic lettuce.…”

Section: Discussionmentioning

confidence: 99%

Insect pests and natural enemies associated with lettuce Lactuca sativa L. (Asteraceae) in an aquaponics system

da Silva,

Cividanes,

Salles

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Although food is produced in aquaponics systems worldwide, no information is available on the occurrence of insect pests and natural enemies in aquaponic lettuce, Lactuca sativa L. In this study, a survey was carried out in an aquaponic system combining lettuce with lambari, Astyanax altiparanae (Garutti & Briski), aiming to determine the insect pests and natural enemies associated with this system. We also determined the predominant insect species and the effect of meteorological factors on their populations. Insect abundance was estimated by visual sampling during 13 cultivation cycles, totaling 27 sampling dates. The meteorological factors considered were air temperature and relative humidity, and their effects were determined using the Pearson correlation. The thrips Frankliniella schultzei (Trybom) and Caliothrips phaseoli (Hood) and the aphid Aphis spiraecola (Patch) predominated. Ambient temperature and relative humidity were essential factors affecting C. phaseoli and F. schultzei. The natural enemies found on the lettuce plants were the thrips Franklinothrips vespiformis (Crawford) and Stomatothrips angustipennis (Hood) and the ladybugs Cycloneda sanguinea L., Eriopis connexa (Germar), and Hippodamia convergens (Guérin-Méneville). These results constitute the first step for a lettuce-integrated pest-management program in aquaponics systems.

show abstract

New Record of Aphididae (Hemiptera) and Coccinellidae (Coleoptera) Species Associated with Shadehouse-Cultivated Lettuce on a South African Highveld Farm

Cited by 5 publications

References 5 publications

Diversidad de artrópodos y moluscos asociados al cultivo de lechuga

Diversidad de artrópodos y moluscos asociados al cultivo de lechuga

The ExoticHarmonia axyridis(Pallas) (Coleoptera: Coccinellidae) and Other Coccinellids in Selected Vineyards of the Western Cape Province, South Africa

Insect pests and natural enemies associated with lettuce Lactuca sativa L. (Asteraceae) in an aquaponics system

Contact Info

Product

Resources

About