Browsing Department of Crop Science by Author "Gitonga, Linus"
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Evaluation of biological attributes of a native egg parasitoid, Trichogrammatoidea sp. nr. lutea (girault), kenyan accessions
Lagat, Zipporah Osiemo; Gitonga, Linus; Muya, Shadrack Muvui; Ng ' Endo, Rossa (2012-09-10)Objective: This study was carried out to evaluate the biological attributes that is, parasitism, adult progeny production, and sex ratio of 21 strains of a native egg parasitoid Trichogrammatoidea sp. nr. lutea Girault ... -
Home Sustainable Management of Invasive Pests in Africa Chapter Influence of Predatory Mites, Phytoseiulus longipes Evans. on the Within-Plant Diurnal Migration and Distribution of the Red Spider Mite, Tetranychus evansi, Baker and Pritchard on African Nightshade, Solanum scabrum
Kungu, Miriam; Subramanian, Sevgan; Salifu, Daisy; Fiaboe, Komi K. M.; Azandémè-Hounmalon, Ginette Y.; Gitonga, Linus; Onyambu, Gladys K.; Deletre, Emilie; Martin, Thibaud (Springer, 2020-07-14)Understanding the within-plant diurnal migration and distribution of the Red spider mite, Tetranychus evansi Baker and Pritchard, in the presence of the predatory mite Phytoseiulus longipes Evans, on African nightshade, ... -
Preventive control alternatives to routine foliar spray against Thrips tabaci in onions
Waiganjo, M.; Sithanantham, S.; Gitonga, Linus; Mueke, J. M. (2008-10)- -
Scope for genetic enhancement of the parasitisation potential of four native strains of Trichogrammatoidea sp. nr. lutea Girault (Hymenoptera: Trichogrammatidae
Baya, Joseph M.; Sithanantham, S.; Gitonga, Linus; Osir, Ellie (Taylor & Francis, 2007-09)In response to emerging interest in commercial mass production of Trichogramma for Helicoverpa armigera biocontrol in eastern Africa, laboratory experiments were undertaken to assess the scope for genetic enhancement of ... -
SUSCEPTIBLE ONION GROWTH STAGES FOR SELECTIVE AND ECONOMIC PROTECTION FROM ONION THRIPS INFESTATION
Waiganjo, M.M; Mueke, J.M.; Gitonga, Linus (Karatina University, 2008-03)The growth of the bulb onion is subject to significant stress and yield reduction caused by sap feeding onion thrips. In Kenya, the general control recommendation is to spray the crop with insecticides as soon as the ...