scholarly journals Fluctuation patterns of different developmental stages of Helicoverpa armigera (Lepidoptera: Noctuidae) on chickpea (Cicer arietinum) and their relationship with the environment

2005 ◽  
Vol 16 (4) ◽  
Author(s):  
Zahid Ali Shah ◽  
Muhammad Shahzad
Keyword(s):  
Relative Humidity ◽  
Environmental Factors ◽  
Helicoverpa Armigera ◽  
Relative Frequency ◽  
Developmental Stages ◽  
Frequency Of Occurrence ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Eggs And Larvae

The relative frequency of occurrence of different developmental stages of gram pod borer, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), and the dependence of its developmental stages on environmental factors, are crucial in the population management. The densities of eggs and larvae were low from December to mid-February due to prevailing cold. Owing to optimum environmental conditions, increasing densities were observed throughout March and they droppped again during the first week of April. The densities of eggs and different larval instars of H. armigera were significantly positively correlated with temperature, and significantly negatively correlated with the average morning relative humidity (RH;%) but not with the average evening RH (%).

scholarly journals Impact of Light Traps on the Larval Population of Gram Pod Borer, Helicoverpa armigera (Lepidoptera: Noctuidae) on Chickpea

2020 ◽  
pp. 107-111
Author(s):  
S. A. Hakeem ◽  
F. Rasool ◽  
S. Bashir ◽  
S. Nissa ◽  
Z. A. Dar ◽  
...  
Keyword(s):  
Population Density ◽  
Light Source ◽  
Helicoverpa Armigera ◽  
Light Traps ◽  
Average Yield ◽  
Larval Population ◽  
Pooled Data ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae

One (T1) and two (T2) light traps per ha were compared with control with no light source (T3) against gram pod borer, Helicoverpa armigera. Pooled data of 2018 and 2019  showed that TI resulted with average population of 0.31larvae per plant with 5.46% pod damage and average yield of 1235 kg per ha. In T2, lowest larval population was recorded (0.25/plant), lesser pod damage (4.02%) and higher yield (1244.8 kg /ha) while in control plots (T3), larval population density was maximum with 0.377 larvae/plant with pod damage of 10-25% and 1162.90 kg /ha yield was recorded.

Antifeedant and larvicidal activities of Mentha pulegium on chickpea pod borer Helicoverpa armigera (Lepidoptera: Noctuidae)

2019 ◽  
Vol 40 (1) ◽  
pp. 151-156
Author(s):  
Rachid Boulamtat ◽  
Saadia Lhaloui ◽  
Abdelhadi Sabraoui ◽  
Karim El-Fakhouri ◽  
Ali Oubayoucef ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Mentha Pulegium ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Larvicidal Activities ◽  
Lepidoptera Noctuidae

scholarly journals Monitoring and Evalution of Chickpea Pod-Borer Helicoverpa Armigera (Hubner) (Lepidoptera: Noctuidae) by Using Pheromone Traps

1970 ◽  
Vol 43 (3) ◽  
pp. 419-426 ◽  
Author(s):  
M Altab Hossain
Keyword(s):  
Pest Management ◽  
Helicoverpa Armigera ◽  
Climatic Conditions ◽  
Management Programme ◽  
Pheromone Traps ◽  
Pest Population ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Key Words Monitoring ◽  
Lepidoptera Noctuidae

Monitoring of chickpea pod-borer, Helicoverpa armigera (Hb.) and its acvities throughtout the year was studied by installing pheromone traps at Pulses Research Center, Ishurdi, Pabna during January 2004 to December 2006. Pod-borer moth catching in pheromone traps was started between 3rd weeks of January to 2nd weeks of February depending on the climatic conditions of the year. Catching of moths was increased gradually and reached its pesk in the month of April then gradually decreased and diminished to zero in the last week of July and ultimately remained zero upto December. Integrated Pest Management Programme against chickpea podborer should be initiated from mid-January to manage this pest population very effectively. Key words : Monitoring, Chickpea, Pest Management, Pod-borer and Catching of moths.DOI = 10.3329/bjsir.v43i3.1159Bangladesh J. Sci. Ind. Res. 43(3), 419-426, 2008

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