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Controlling Tuta absoluta(Meyrick) by Selected Crude Plant Extracts in the Laboratory and in the Screen House

Journal of Agricultural Science and Technology(A) 2019年第4期9卷 227-239页

作者： Matendo Rehema Esther Nonga Hezron Emmanuel Bakari Gaymary George Ndusha Nabintu Bintu Mwatawala Maulid Walad maerere amon petro Faculty of Agriculture and Environmental Sciences Universite Evangelique en AfriqueP.O.Box 3323BukavuSud-KivuRepublic Democratic of Congo or 165 CyanguguRwanda Department of Veterinary Medicine and Public Health Sokoine University of AgricultureP.O.Box 3021MorogoroTanzania Department of Crop Science and Horticulture Sokoine University of AgricultureP.O.Box 3005MorogoroTanzania

Effects of Commiphora swynnertonii,Synadenium glaucescens and Allium sativum extracts on the tomato leaf miner,Tuta absoluta(Meyrick)were evaluated on the adults and in screen house *** adult stage was involved with 30 adults that were reared in an insectarium,the experimental design was a completely randomized design(plant extracts from three plants species×three doses of 2%,4% and 8%).In the screen house,experimental dispositive was a completely randomized block design(two varieties of tomatoes×three plants extracts).Larval counts were performed after 0,1,2,3 and 7 d of treatment,40 tomato leaves(10×4 replicates)were randomly taken from each *** mean percentage mortality of adults was recorded daily for 5 *** indicated that,each plant extract caused significant mortality to adults of *** after 5 d in comparison to the *** dipping against adult of *** proved to be the most effective for all plant extracts at 30%-100%.Commiphora resulted in the adults’mortality of 100%.In the screen house Commiphora showed the high reduction of infestation for Tanya and Cal J *** with this plant extract resulted in the highest fruit yield and the lowest yield loss compared to all the plant *** extract is recommended into integrated pest management strategies for the control of ***.

关键词： Plant pesticide insect control tomato Tuta absoluta

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