Estimation of interaction between sucking insect/pests of cotton crop and their predator
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Abstract
The basic purpose of the current research was to determine the predator (Geocoris, Chrysoperla and Argiope) and prey (jassid, dusky bugs, mites, thrips and white flies) relationship in cotton growing region of south Punjab during 2014 to 2016. Number of adult pests and their predators were noted from seedling to harvesting. Pearson coefficient of correlations was calculated after the analysis of data. Geocoris carinatus showed correlation coefficient with the pests ranged from 0.23 to 0.43 in 2014, 0.20 to 0.36 in 2015 and 0.07 to 0.26 in 2016 respectively at site I. Chrysoperla carnea showed the correlation with pests population was 0.27 to 0.35, in 2014, 0.02 to 0.36 in 2015 and 0.08 to 0.27 in 2016 respectively at site I. Correlation of coefficient between Argiope catenulate and their pests was 0.13 to 0.37 in 2014, 0.15 to 0.25 in 2015 and 0.10to 0.22 in 2016 respectively at site I. During 2014, 2015 and 2016, the correlation between Argiope, Chrysoperla and Geocoris and their pest were positive, significant and ranges from 0.30 to 0.49, 0.17 to 0.36 and 0.32 to 0.58 respectively at site II. At site III, the correlation of coefficient during 2014, 2015 and 2016 was positive, significant and ranged from 0.12 to 0.34, 0.15 to 0.45 and 0.11 to 0.42 respectively. These observations helped scientific community to find out the predators population from pests population effectively at the experimental sites. The sucking insects/pests of cotton crop might be controlled biologically and cotton yield increases.
Keywords: Correlation; Predators; Sucking Insects/Pests; Transgenic Cotton