scholarly journals Verification of the Efficacy of New Insecticide, Diesel (Lufenuron+Emamectin Benzoate) against Onion Thrips (Thrips Tabaci Lindeman) in Bale, south-eastern Ethiopia

2021 ◽  
pp. 015-018
Author(s):  
Abdurezake Mohammedamin ◽  
Eshetu Guta
Keyword(s):  
Thrips Tabaci ◽  
Onion Thrips ◽  
Emamectin Benzoate ◽  
Eastern Ethiopia ◽  
South Eastern

scholarly journals Verification of the Efficacy of New Insecticide, Diesel (Lufenuron+Emamectin benzoate) against Onion Thrips (Thrips Tabaci Lindeman) in Bale, south-eastern Ethiopia

2021 ◽  
pp. 015-018
Author(s):  
Abdurezake Mohammedamin ◽  
Eshetu Guta
Keyword(s):  
Abiotic Factors ◽  
Thrips Tabaci ◽  
Limiting Factor ◽  
Yield Losses ◽  
Onion Thrips ◽  
Emamectin Benzoate ◽  
Eastern Ethiopia ◽  
Plot Size ◽  
Planting Material ◽  
Significant Yield

Onion (Allium cepa) is popularly called as “Queen of Kitchen” as it is used as food, salad, spice, condiment and in medicine. Currently, the production is practiced all over the round for its daily uses in food and source of income and for commercial purposes starting from the introduction in the country as planting material from Sudan. However, its productivity is constrained by both biotic and abiotic factors of production. Thrips, thrips tabaci Lindeman (Thysanoptera: Thripidae) is the most limiting factor and causes significant yield loses among biotic factors. In this study, the efficacy of the new insecticide (Diesel (Lufenuron+Emamectin benzoate) was tested with standard check (CORSA (Profenofos 40% + Cypermethrin 4%EC) and unsprayed check included for comparison in three location (Sinana on station, Goba and Aloshe) using a plot size of 10m by 10m for each treatment. Accordingly, the result found that, the new insecticide was effective as of the standard check in controlling the infestation of thrips and reducing the yield losses which contributes in increasing both production and productivity of onion. Therefore, Diesel (Lufenuron+Emamectin benzoate) insecticide can be registered and used as management option for control of onion thrips in Ethiopia.

Eliminating Thrips in Microshoot Cultures

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 506d-506
Author(s):  
Robert R. Tripepi ◽  
Holly J. Schwager ◽  
Mary W. George ◽  
Joseph P. McCaffrey
Keyword(s):  
Betula Pendula ◽  
Culture Media ◽  
Dry Weight ◽  
Thrips Tabaci ◽  
Shoot Cultures ◽  
Onion Thrips ◽  
Ulmus Americana ◽  
Shoot Height ◽  
Tissue Culture Media ◽  
Plant Tissue Cultures

Two insecticides, acephate or azadirachtin, were added to tissue culture media to determine their effectiveness in controlling onion thrips (Thrips tabaci Lindeman.) and to determine if these insecticides could damage the plant shoot cultures. To test for insecticide phytotoxicity, microshoots from European birch (Betula pendula), American elm (Ulmus americana), `Pink Arola' chrysanthemum (Dendranthema grandiflora), `America' rhododendron (Rhododendron catawbiense), `Golden Emblem' rose (Rosa hybrida), and `Gala' apple (Malus domestica) were placed in 130-ml baby food jars containing 25 ml of medium supplemented with 6.5, 13, or 26 mg/l Orthene® (contained acephate) or 0.55, 1.1, or 2.2 ml/l Azatin® (contained azadirachtin). Control jars lacked insecticide. To test for thrips control, 13 mg/l Orthene® or 0.55 ml/l Azatin® was added to Murashige and Skoog medium, and 10 thrips were placed on `Gala' apple microshoots in each jar. Jars were sealed with plastic wrap. In both studies, microshoot dry weight and heights were determined. In the second study, the total number of thrips per jar was also determined 3 weeks after inoculation. Microshoots on Orthene®-treated media lacked phytotoxicity symptoms, regardless of the concentration used. In contrast, Azatin® hindered plant growth, decreasing shoot height or dry weight by up to 85% depending on the species. Both insecticides prevented thrips populations from increasing, since less than 10 thrips were found in jars with insecticide-treated medium. Control jars, however, contained an average of almost 70 thrips per jar. This study demonstrated that both Orthene® and Azatin® were effective for eradicating thrips from plant tissue cultures, but Orthene® should probably be used because Azatin® was phytotoxic to all species tested.

Weather based prediction model for onion thrips thrips tabaci lindeman in maharashtra

2021 ◽  
Vol 83 (1) ◽  
pp. 21-24
Author(s):  
V Karuppaiah ◽  
S J Gawande ◽  
V Mahajan ◽  
M Singh
Keyword(s):  
Prediction Model ◽  
Thrips Tabaci ◽  
Onion Thrips

scholarly journals Beekeeping practices, trends and constraints in Bale, South-eastern Ethiopia

2017 ◽  
Vol 9 (4) ◽  
pp. 62-73 ◽  
Author(s):  
Tesfaye Bekele ◽  
Begna Desalegn ◽  
Eshetu Mitiku
Keyword(s):  
Eastern Ethiopia ◽  
South Eastern
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