Linking Meteorological Parameters and Population Dynamics of Jassid (Amrasca biguttula biguttula) in Cotton
Linking Meteorological Parameters and Population Dynamics of Jassid (Amrasca biguttula biguttula) in Cotton
Umair Faheem1*, Qaisar Abbas1, Saghir Ahmad2, Ghayour Ahmad2, Abdul Karim2and Mussurat Hussain1
ABSTRACT
Cotton is considered as the back bone of Pakistan’s economy. It is attacked by several sap sucking and chewing insect pests during its growth, which results in the significant reduction of the cotton yield. Among these insect pests, Amrasca biguttula biguttula ‘Jassid’ are the most destructive ones. Beside these insect pests, environmental factors also affect the cotton production as well as population fluctuations of insect pests. The current study was designed to measure the impact of different meteorological limitations i.e. temperature (oC), relative humidity (RH) and rainfall (RF) on population fluctuation or dynamics of the A. biguttula biguttula. It was found that there is a direct relationship between A. biguttula biguttula population and temperature. While, no significant correlation of A. biguttula biguttula population with the RH except two years (2014 and 2016) where, it has shown positive correlation. RF mostly has significantly positive correlation with A. biguttula biguttula population. During the study duration, it has also been found that A. biguttula biguttula population was highest during the month of June and lowest during the month of April. Similarly, during 2015 A. biguttula biguttula population was highest and during 2013 and 2014 it remains the lowest. The study reveals that, these weather factors show a vital role in the population dynamics or fluctuation of Jassid and weather based predictive models are very effective to manage insect pests.
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March 2021
Vol. 37, Iss. 1, Pages 1-330
