Tesfaye Tadesse

• Doctor of Philosophy
• Professor (Assistant) at Bahir Dar University

Abstract: Potato (Solanum tuberosum L.) is an important cash and food crop in Ethiopia. However, lack of planting material and improved varieties are among the major factors affecting its productivity. Therefore, an experiment was conducted at Gayeta Kebele of Dangla district, Awi Zone, Northwestern Ethiopia to study the effect of seed tuber cuttin...

This experiment quantifies the carcass composition and the sensory and chemical attributes of beef from four local cattle breed types in selected districts of NorthWest Amhara, Ethiopia. Forty matured intact bulls were fattened using two treatment feeds with Diet-1 (60:40), and Diet-2 (70:30) concentrate: roughage ratio of the daily dry matter inta...

This experiment quantifies the carcass composition and the sensory and chemical attributes of beef from four local cattle breed types in selected districts of North-West Amhara, Ethiopia. Forty matured intact bulls were fattened using two treatment feeds with Diet-1 (60:40), and Diet-2 (70:30) concentrate: roughage ratio of the daily dry matter int...

Bread wheat is a strategic cereal crop produced ndederunder both irrigation and main rainy season in the Amhara region, Ethiopia. However, its productivity is low due to unreliable seed sources, inappropriate seed rate, and unavailability of adaptable improved varieties for a wide range of agro-ecologies. Therefore, an experiment aimed at evaluatin...

BACKGROUND Rhyzopertha dominica is a serious pest of stored grains and many populations have resistance to the fumigant phosphine. Some populations contain beetles with a ‘strong resistance’ phenotype. Recent work found the LC50 values for two strong‐resistant populations recently studied in North America, Belle Glade and Minneapolis were 100‐ and...

Efficacy of filter cake and Triplex powders was evaluated against the red flour beetle, Tribolium castaneum (Herbst); saw-toothed grain beetle, Oryzaephilus surinamensis (L.); and Indian meal moth, Plodia interpunctella (Hübner). Mortality of T. castaneum and O. surinamensis was determined 14 d after exposing 20 adults to 100 g of maize and wheat t...

Abstract Filter cake and Triplex powders from Ethiopia were applied to maize and wheat in the laboratory to determine efficacies against the lesser grain borer, Rhyzopertha dominica (Fabricius, 1972) (Coleoptera: Bostrichidae); maize weevil, Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae); and rice weevil, Sitophilus oryzae (Linna...

Filter cake and Triplex are powdered by-products of aluminum sulfate and soap factories in Ethiopia, respectively. This study was aimed at determining contact toxicity of filter cake and Triplex powders against maize weevil, Sitophilus zeamais Motschulsky. Lethal concentrations for 99% mortality (LC99) against S. zeamais were determined by exposing...

Abstract Filter cake and Triplex powders, from Ethiopia were tested for their toxicity against the rice weevil, Sitophilus oryzae (Linnaeus), a common insect pest in Ethiopian smallholder farmers’ storages. The lethal concentrations for the 50 and 99% mortality (LC50 and LC99) of filter cake and Triplex against S. oryzae were determined by exposin...

Contact toxicity of filter cake and Triplex powders from Ethiopia were evaluated against the rice weevil, Sitophilus oryzae (Linnaeus). The study was aimed at determining the lethal and effective concentrations and times for both powders against S. oryzae. The lethal concentrations for 50 and 99% mortality (LC50 and LC99) of filter cake and Triplex...

The efficacy of filter cake and Triplex powders applied to wheat was evaluated in the laboratory against the maize weevil, Sitophilus zeamais Motschulsky and rice weevil, Sitophilus oryzae (Linnaeus)—two most common insect pests associated with stored grain in Ethiopia. Efficacy of these powders was determined by exposing 20 adults of each species...

Abstract Filter cake and Triplex are powdered by-products of aluminum sulfate and soap factories, respectively. There is limited data about the use of these powders as grain protectants. This study was aimed at determining contact toxicity of both powders against Sitophilus zeamais, a common pest of stored grains. Lethal concentration of both p...

Filter cake and Triplex are powdered by-products of aluminum sulfate and soap factories, respectively. The latter powder is from berries of the Endod plant, Phytolacca dodecandra L. This study was designed to determine the chemical composition of these two powders using scanning electron microscopy conjugated with energy-dispersive X-ray spectrosco...

Filter cake and Triplex, by-products of aluminum sulfate and soap factories respectively, are from Ethiopia. This study was aimed at determining the efficacy of the two powders against Sitophilus zeamais, Motschulsky, a common pest of grains in Ethiopia on wheat. Twenty unsexed adults of mixed ages were exposed to 100 g of organic hard red winter w...

The effects of land-use change on ecosystem services in Kurt Bahir wetland were investigated during 2013 to 2014 using LANDSAT satellite images from 1973, 1986, 2002 and 2013 to identify and map changes in land-use classes over time. To understand perceptions of changes in ecosystem services that resulted from observed land-use changes discussions...