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  1. Article: The Area-Wide Spatio-Temporal Distribution of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in a Heterogenous Fruit Production Region of the Western Cape, South Africa

    Bekker, G.F.H.v.G / Addison, M.F / Addison, P / Baard, N / Niekerk, A. van

    African entomology. 2019 Apr. 25, v. 27, no. 1

    2019  

    Abstract: The area-wide spatio-temporal distribution of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) trap catches was investigated in the regions of Elgin/Grabouw, Villiersdorp and Vyeboom, collectively known as EGVV, Western Cape, South Africa. The ... ...

    Abstract The area-wide spatio-temporal distribution of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) trap catches was investigated in the regions of Elgin/Grabouw, Villiersdorp and Vyeboom, collectively known as EGVV, Western Cape, South Africa. The primary fruit crops planted in EGVV include various varieties and cultivars of pome fruit, stone fruit, citrus, wine grapes and berries. Fruit fly trapping data from four consecutive seasons were sourced from a centralised database managed by a non-profit company, which operates an area-wide integrated pest management (AW-IPM) programme, incorporating the sterile insect technique (SIT) for C. capitata fruits flies, within EGVV. Mean trap catch between regions and seasons was compared. The spatio-temporal variation of mean trap catch was also investigated. A geographic information system (GIS) was used to symbolise and map mean trap catch per trap location. There was no significant difference in the mean trap catch between regions. Significant differences did occur between some seasons in Villiersdorp and Vyeboom but not in Elgin/Grabouw. The spatial distribution of trap catches between seasons varied greatly, indicating no definitive pattern. However, traps with the highest seasonal trap catch occurred mostly in the southeastern parts of each region and traps with lower levels were distributed mostly in the northwestern parts of each region. The results suggest a relationship between the geographic characteristics of EGVV and the abundance and distribution of C. capitata. It is recommended that an in-depth spatio-temporal analysis be carried out to better understand the geographical distribution of trap catches in the study area.
    Keywords Ceratitis capitata ; Citrus ; cultivars ; databases ; fruit crops ; fruit flies ; fruits ; geographic information systems ; geographical distribution ; integrated pest management ; pome fruits ; small fruits ; spatial distribution ; spatial variation ; sterile insect technique ; stone fruits ; temporal variation ; trapping ; traps ; wine grapes ; South Africa
    Language English
    Dates of publication 2019-0425
    Size p. 97-113.
    Publishing place Entomological Society of Southern Africa
    Document type Article
    ZDB-ID 2114779-6
    ISSN 1021-3589
    ISSN 1021-3589
    DOI 10.4001/003.027.0097
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Comparison of Two Trap Types for Monitoring Bactrocera oleae (Rossi) (Diptera: Tephritidae) in Commercial Olive Groves of the Western Cape Province, South Africa

    Bekker, G.F.H.v.G / M.F. Addison / P. Addison

    African entomology. 2017 Mar., v. 25, no. 1

    2017  

    Abstract: The efficacy of two commercially available traps used for monitoring Bactrocera oleae (Rossi) (olive fruit fly) were tested in the Western Cape Province, South Africa. We compared the efficacy of yellow Delta traps and yellow Bucket traps, baited with ... ...

    Abstract The efficacy of two commercially available traps used for monitoring Bactrocera oleae (Rossi) (olive fruit fly) were tested in the Western Cape Province, South Africa. We compared the efficacy of yellow Delta traps and yellow Bucket traps, baited with Olive Fruit Fly lure, which attracts both B. oleae males and females. Traps were tested in 20 commercial olive groves, at three locations during autumn (March–May) in 2013. The yellow Delta traps caught significantly more B. oleae than the yellow Bucket traps, as well as significantly more B. oleae males than females. Ceratitis capitata (Wiedemann) and Bactrocera biguttula (Bezzi) were also trapped during the study. For both species, yellow Delta traps caught significantly more individuals than yellow Bucket traps. This study showed that yellow Delta traps performed better than yellow Bucket traps, in monitoring B. oleae activity in commercial olive groves during autumn, prior to harvest
    Keywords autumn ; Bactrocera oleae ; Ceratitis capitata ; females ; groves ; harvesting ; males ; monitoring ; olives ; river deltas ; traps ; South Africa
    Language English
    Dates of publication 2017-03
    Size p. 98-107.
    Publishing place Entomological Society of Southern Africa
    Document type Article
    ZDB-ID 2114779-6
    ISSN 1021-3589
    ISSN 1021-3589
    DOI 10.4001/003.025.0098
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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