Wheat Crop Yield Losses Caused by the Aphids InfestationArif Muhammad Khan1, Azhar Abbas Khan2*, Muhammad Afzal2 and Muhammad Shahid Iqbal3
- *Corresponding Author:
- Azhar Abbas Khan
Department of Entomology
University of Sargodha
E-mail: [email protected]
Received date: April 26, 2012; Accepted date: August 06, 2012; Published date: August 10, 2012
Citation: Khan AM, Khan AA, Afzal M, Iqbal MS (2012) Wheat Crop Yield Losses Caused by the Aphids Infestation. J Biofertil Biopestici 3:122. doi:10.4172/2155-6202.1000122
Copyright: © 2012 Khan AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Present study was planned to determine the yield loss in wheat crop at different dates of observation for the population of aphids. The wheat cultivar BK-2002 was sown at Arid Zone Research Institute, Bhakkar. For two different treatments viz. sprayed and un-sprayed wheat crop was compared, sprayed crop was observed with minimum aphid’s population whereas un-sprayed appeared comparatively susceptible with maximum population of aphids. Thiamethoxam (Actara®) was used as insecticide for sprayed treatment @ 25 gm/acre as recommended commercially. Last week of February was found to be very favourable for aphids in wheat fields in the study area. Third week of February was found to be the most suitable period for the bio-control agents i.e. Coccinellids in wheat crop. Positive correlation was found to exist between the population of aphids and Coccinellids among different wheat cultivars.