Settling, Oviposition and Reproduction Response of Peach Fruit Fly, Bactrocera zonata (Saunders) to the Plant Extracts of Native Species of Kalat Division in Balochistan
Settling, Oviposition and Reproduction Response of Peach Fruit Fly, Bactrocera zonata (Saunders) to the Plant Extracts of Native Species of Kalat Division in Balochistan
Nasir Shah1,4, Muhammad Ibrahim1*, Zarnosh Habib2, Kalsoom3 and Zahir Shah4
ABSTRACT
Fruit flies are notorious insect pests causing considerable loss to agriculture produce. This effort was meant to evaluate the response of different life stages of peach fruit fly to plant extracts having insecticidal properties. Extract of three native plant species (Azadirachta indica, Zataria multiflora, Achillea santolina) and their various concentration (2, 1, and 0.5%) were used for the purpose. Firstly, the artificial diet of fruit flies was subjected to these treatments, while on the other hand chikoo fruits which were used for flies to settle on, were dipped in same concentrations of these plant extracts, and dried under shade and exposed to peach fruit flies for feeding for 15 days. All the three plants exhibited insect repelling potential but these had no significant difference from each other, while A. indica showing nonsignificant but most promising results. Similarly, there was no significant combine effect of plants extracts and its various concentrations. However, various doses of plant extracts showed significant difference in reducing the number of oviposition, pupae developed, flies settled and post settling reproduction. There was inverse response of peach fruit flies to increasing concentration of plant extracts. Minimum significant number of fruit flies (0.58) settled after 18 h, reaching to its peak (1.73) after 42 h showing a decreasing trend subsequently. Hence, all the plants exhibited insecticidal potential and resulted in reduction of fruit fly population in laboratory condition. Thus, these plant extracts could be considered as potent biological insecticides for peach fruit fly owing to field trails.
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