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Accueil du site → Doctorat → Soudan → Larvicidal Activity of the Crude Extracts of some Local Plants on Housefly Musca domestica vicina Macq. (Dipetra : Muscidae)

University of Gezira (2015)

Larvicidal Activity of the Crude Extracts of some Local Plants on Housefly Musca domestica vicina Macq. (Dipetra : Muscidae)

Tamim, Misaab Mohammed Hanai

Titre : Larvicidal Activity of the Crude Extracts of some Local Plants on Housefly Musca domestica vicina Macq. (Dipetra : Muscidae)

Auteur : Tamim, Misaab Mohammed Hanai

Université de soutenance : University of Gezira

Grade : Doctor of Philosophy Degree in Biosciences and Biotechnology 2015

Résumé
The housefly (Musca d. vicina) is a subspecies of dipteral flies that become vector to many serious diseases. The control of housefly depended mainly on environmental control and chemical insecticides against adult and larvae. In the present study, the larvicidal activity of the crude extracts (aqueous, methanol and hexane) of some local plants (neem ; Azadirachta indica, Aweer ; Ipomoea helderbranditti and Sunut ; Acacia nilotica) on housefly larval stage was investigated in the faculty of Engineering and Technology during three seasons (2013, 2014 and 2015). The plants used in this study were brought from Alnishishiba area, Wad Madani City, Gezira State, Sudan. The leaves of these plants were cut-off at early morning, cleaned and dried under shade in the room temperature then crushed and extracted with water, methanol and hexane for 24 hours. Housefly larvae were collected from Al Andalus area and were reared in special cages (35x35x35 cm). The standard larval feed (control) was prepared by mixing wheat bran, milk powder, sugar and yeast. The treated feed was made by adding each of the prepared crude extract to the previously prepared control feed and was used for 6 days. Each test was triplicated. The results of this study showed that, in the first season, the aqueous extract of Ipomoea leaves at (1%) resulted in 95% mortality followed by methanol extract of Sunut leaves (93.67), while Hexane extract of Ipomoea showed the lowest effect (49%). The concentration 5% of aqueous extract of neem leaves and of methanol extract of Ipomoea in season one and two resulted in 100% mortality of housefly larvae, while that of hexane extract of Ipomoea resulted in 32.5% mortality (the lowest). Varies toxic and deterrent effects of these crude extracts beside an evidence of development deteriorations were recorded. ANOVA proved no significant difference in the toxicity of the used crude extracts. This study recommends continuing investigation in these plants to be used in housefly control programs.

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