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Leonard et al

By Leonard, JA; Kudra, AB; Baijukya, F; Tryphone, GM (2022).

Greener Journal of Agricultural Sciences

Vol. 12(1), pp. 75-85, 2022

ISSN: 2276-7770

Copyright ©2022, the copyright of this article is retained by the author(s)






Common Weeds Found in Selected Cassava Farms in Eastern Zone of Tanzania



Joseph A. Leonard1; Abdul B. Kudra1; Frederick Baijukya2; George M. Tryphone1



1Department of Crop Science and Horticulture, Sokoine University of Agriculture,

 P. O. Box 3005 Chuo Kikuu, Morogoro, Tanzania.

2Internatioal Institute of Tropical Agriculture, P. O. Box 34441 Dar Es Salaam, Tanzania.






Article No.: 022422022

Type: Research



A field study was conducted at Kiimbwanindi village, Mkuranga district and Ilonga village, Kilosa district. Coast and Morogoro regions of Tanzania, respectively to identify the common weeds affecting cassava fields. A total of 24 random 1 m × 1 m quadrat were placed in each cassava field where by all weed species found in each quadrat were identified to a species level. During weed identification, weed density, uniformity and frequency were calculated according to Thomas methodology and used to determine weeds’ relative abundance. Also, a composite soil samples were collected based on random sampling procedure at a depth of 0 to 50 cm from each field before land preparation and analysed in the laboratory in order to determine the amount of nutrient content available in the soil. A total of 22 weeds species belonging to 16 families were identified, whereby out of these 14 were broad leaved weeds, 6 grassy weeds, 1 mushroom and 1 sedged weed belonging to 10 perennial and 12 annual weeds plant. During weed identification, Cyperus rotundus and Echinochloa colona were the most abundantweed species while Dactyloctenium aegyptium, Portulaca oleracea, Agaricus sp and Bidens pilosa were the least occurred weed species.  Perennial weeds Cyperus rotundus, Echinochloa colona, Trichodesma zeylanicum, Reissantia sp, Mucuna pruriens and Commelina benghalensis found to be the mostly abundant weed species due to their ability to adapt into various soil types and their ability to reproduce as compared to other weeds. The study recommended that, research toward new or improved weed control measures is needed and also more survey work is needed on a regular basis to identify possible weed population shifts.


Accepted:  03/03/2022

Published: 04/04/2022


*Corresponding Author

Tryphone GM

E-mail: muhamba@



Weed, Thomas methodology, Relative Abundance, Weed density.





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Cite this Article: Leonard, JA; Kudra, AB; Baijukya, F; Tryphone, GM (2022). Common Weeds Found in Selected Cassava Farms in Eastern Zone of Tanzania. Greener Journal of Agricultural Sciences, 12(1): 75-85.



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