US EPA

8600246 

Journal Article 

Studies on seasonal incidence and biointensive management of Pigeonpea pod borer complex 

Bhoyar, AS; Siddhabhatti, EM; Wadaskar, RM; Khan, MI 

2004 

28 

9 

32-37 

English 

Studies on seasonal incidence of Pigeonpea pod borer complex revealed population buildup of pod borer, H. armigera from the second week of October (42nd meterological week) to first fortnight of February (7th meteorological week) with highest peak during the last week of November (48th meteorological week). The weather parameters values of maximum and minimum temperature, morning and evening relative humidity and rainfall were 32.2°C and 12.9°C, 57% and 17% and 0.00 mm, respectively. The H. armigera population buildup showed no correlation with the physical parameters. The Tur plume moth, E. atomosa was most active from the second week of November (46th meteorological week) to second week of February (7th meteorological week). The peak population was observed in last week of December (52nd meteorological week) at maximum temp (30.3°C) and minimum temperature (10.8°C), morning relative humidity (46%) and evening relative humidity (24%) and rainfall 0.00 mm. The E. atomosa population showed a negative correlation with maximum and minimum temperature and positive correlation with morning relative humidity. Biointensive treatments were evaluated for the management of pod borer complex, which showed significant differences over untreated control. Treatment of Spinosad 2.5 SC, and Endosulfan 35 EC, 0.07 percent were the most promising treatments in terms of least mean pod damage of 11.85 and 17.80 percent and grain damage of 13.51 and 20.41 percent, respectively as against 28.65 and 41.17 percent pod and grain damage in untreated control. The yield data also reflected the same high efficacy trend of Spinosad and Endosulfan application with grain yield of 14.43 and 12.88 q/ha over 7.76 q/ha of untreated control. 

Biointensive management; Pigeonpea; Pod borer complex; Seasonal incidence