Vol. 6, Issue 5 (2018)
Seasonal incidence of Helicoverpa armigera (Hubner) and Exelastis atomosa (Walsingham) on different cultivars of pigeonpea
Author(s): Ingale RT, Kadam DR, Savde VG and Mane UT
Abstract: The experiment was conducted at Experimental Research Farm Dept. of Agril. Entomology, VNMKV, Parbhani, during the Kharif-2017. The present study revealed that the incidence of H. armigera on cultivar, BDN-711 was first noticed in 39th MW (0.25 larvae/plant). Whereas, the maximum incidence 4.34 larvae/plant was noticed at 43rd MW. On BSMR-736 it was noticed in 40th MW 0.40 larvae/plant. Whereas, the maximum incidence 5.00 larvae/plant was noticed in 45th MW. On cultivar BSMR-853 was first noticed in 40th MW 0.32 larvae/plant. Whereas, the maximum incidence 5.12 larvae/plant was noticed in 45th MW. In case of BSMR-716 was first noticed in 40th MW 1.45 larvae/plant. Whereas, the maximum incidence 5.00 larvae/plant was noticed in 44th MW. During first five weeks of observation (38th to 42nd MW) the infestation was not found. However first incidence of E. atomosa on pigeonpea cultivar BDN-711 was observed in 43rd MW (1.00 larvae/plant). The highest larval population of 4.00 larvae/ plant was observed in 48th MW. On BSMR-736 it was observed in 46th MW (1.00 larvae/plant). The highest larval population of 3.12 larvae/ plant was observed in 50th MW. On BSMR-853 it was noticed in 46th MW (1.25 larvae/plant). The highest larval population of 3.36 larvae/ plant was observed in 50th MW. In 46th MW (1.42 larvae/plant) was found with the highest larval population of 3.22 larvae/ plant was observed in 49th MW on cultivar BSMR-716. The selected weather parameters indicated 70.00 percent and 60.2 percent on BDN-711. On BSMR-736 it was 61.5 percent on and 66.1 percent. On BSMR-853 it was 59.7 percent and 64.00 percent. On cultivar BSMR-716 it was 60.3 percent and 69.4 percent variation on the population of H. armigera and plume moth, respectively.
Pages: 1084-1088 | 364 Views 95 Downloads
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How to cite this article:
Ingale RT, Kadam DR, Savde VG, Mane UT. Seasonal incidence of Helicoverpa armigera (Hubner) and Exelastis atomosa (Walsingham) on different cultivars of pigeonpea. Int J Chem Stud 2018;6(5):1084-1088.
