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- Title
INFLUENCE OF WEATHER FACTORS ON THE TRAPPED POPULATION OF SPOTTED BOLLWORM (E. VITTELLA F AND E. INSULANA B) UNDER BAHAWALPUR AGROECOSYSTEM.
- Authors
Ali, Amjad; Shah, Zaffar-Ullah; Saleem, Muhammad; Hafeez, Faisal; Zia-ullah; Abbas, Muneer; Farooq, Muhammad; Ghaffar, Abdul
- Abstract
The study was initiated at Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, to determine the impact of weather factors in population fluctuation of spotted bollworm Earias sp (E. vittella F and E. insulana B) during 2009 to 2011. On each spot three pheromone traps each ten meters apart were installed in cotton-wheat growing area of Bahawalpur. The data on trapped population of spotted bollworm were recorded fortnightly. The population of the pest remained present throughout the study years. However, the highest peaks were recorded on 10.11.2009 (14.98/trap), on 5.11.2010 (33.22/trap) and on 2.8.2011 (5.60/trap) with maximum, minimum, average temperatures and RH of 32.73°C, 13.00oC, 23.78°C and 66%; 32.47°C, 16.00°C, 24.24°C and 75% and 4.53°C, 26.27°C, 33.40°C and 79.27%, respectively. None of the weather factors showed significant correlation with the pest for individual year and on cumulative basis. Maximum temperature during 2009, relative humidity during 2010, minimum temperature during 2011 and relative humidity on cumulative basis were important resulted in maximum impact i.e. 8.1, 13.9, 15.9 and 7.0 %, respectively in population fluctuation of the pest.
- Subjects
COTTON diseases &; pests; AGRICULTURAL ecology; AGRICULTURAL climatology; EFFECT of humidity on plants; EFFECT of temperature on plants
- Publication
Journal of Agricultural Research (03681157), 2016, Vol 54, Issue 3, p477
- ISSN
0368-1157
- Publication type
Article