scholarly journals Determination of economic injury levels of Helicoverpa armigera (Hubner) in chickpea

1970 ◽  
Vol 33 (4) ◽  
pp. 555-563 ◽  
Author(s):  
MA Zahid ◽  
MM Islam ◽  
MH Reza ◽  
MHZ Prodhan ◽  
M Rumana Begum
Keyword(s):  
Helicoverpa Armigera ◽  
Threshold Level ◽  
Damage Potential ◽  
Cropping Season ◽  
Pod Borer ◽  
Economic Injury ◽  
Helicoverpa Armígera ◽  
The Cost ◽  
Single Larva

Chickpea pod borer Helicoverpa armigera (Hubner) is considered to be one of the major pests of chickpea. The damage potential and economic threshold level for Helicoverpa armigera larvae on chickpea crop were worked out. On an average, single larva per m row reduced the yield to the extent of 155 kg/ha and 157 kg/ha in 2004-05 and 2005-06 cropping season, respectively. The ratio of the value of yield saved to the cost of insecticide application at one larva per m row was 1.06 and 1.12 in 2004-05 and 2005-06, respectively. EILs for Helicoverpa armigera were determined as 12 and 0.95 per m row and ETLs was at 09 and 0 73 larvae per m row in 2004-05 and 2005 - 06, respectively. Key Words: Economic injury, chickpea, pod borer doi: 10.3329/bjar.v33i4.2288 Bangladesh J. Agril. Res. 33(4) : 555-563, December 2008

scholarly journals Determination of Economic Injury Levels of Maruca vitrata in Mungbean

1970 ◽  
Vol 6 (1) ◽  
pp. 91-97 ◽  
Author(s):  
MA Zahid ◽  
MM Islam ◽  
MR Begum
Keyword(s):  
Key Words ◽  
Maruca Vitrata ◽  
Economic Threshold ◽  
Damage Potential ◽  
Insecticide Application ◽  
Economic Injury ◽  
Cropping Seasons ◽  
The Cost ◽  
Single Larva

Maruca vitrata is considered to be one of the major pests of mungbean. The damage potential and economic threshold levels of Maruca vitrata larvae on mungbean were worked out at ARS, BARI, Burirhat, Rangpur during rabi 2005-2006 and 2006-2007. On an average single larva per m row reduced the yield to the extent of 154 kg/ha and 106 kg/ha in 2005-2006 and 2006-2007 cropping seasons, respectively. The ratio of the value of yield saved to the cost of insecticide application at one larva per m row in 2005-2006 was 1.45 and same in 2006-2007 was 1.34. EIL for Maruca vitrata were determined as 1.0 and 1.16 larvae per m row in 2005-2006 & 2006-2007respectively. ET value was determined from EILs and those were found to be at 0.75 and 0.87 larvae per m row in 2005-2006 & 2006-2007 respectively. On the basis of means of two years the EIL and ETL values of Maruca vitrata were 1.08 & 0.81 larvae per m row, respectively. Key words: ETL, EIL, Maruca vitrata, Mungbean. doi:10.3329/jard.v6i1.1662 J Agric Rural Dev 6(1&2), 91-97, June 2008

scholarly journals Biochemical basis of resistance to pod borer ( Helicoverpa armigera ) in Australian wild relatives of pigeonpea

2021 ◽  
Author(s):  
Prameela Vanambathina ◽  
Rao C. N. Rachaputi ◽  
Yasmina Sultanbawa ◽  
Anh Dao Thi Phan ◽  
Robert J. Henry ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Wild Relatives ◽  
Biochemical Basis ◽  
Pod Borer ◽  
Helicoverpa Armígera

Comparative Efficacy of Various Insecticides to Control Gram Pod Borer (Helicoverpa armigera Hubner) on Chickpea

2003 ◽  
Vol 2 (4) ◽  
pp. 403-405 ◽  
Author(s):  
Abdul Rashid ◽  
Habib Ahmad Saeed . ◽  
Lal Hussain Akhtar . ◽  
Sabir Zameer Siddiqi . ◽  
Muhammad Arshad .
Keyword(s):  
Helicoverpa Armigera ◽  
Comparative Efficacy ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner
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