Evaluation of Population Dynamics of Sucking Pests on Bt and Non Bt Cotton Cultivars
Evaluation of Population Dynamics of Sucking Pests on Bt and Non Bt Cotton Cultivars
Azam Ali* and Amjad Farooq
ABSTRACT
The purpose of current study was to highlight the population dynamics of sucking pests on Bt cotton varieties (Lalazar, IUB-33, Sitara-009and MNH-988) and one non-Bt (NIAB) varieties in Multan Southern Punjab, Pakistan. During 2014 to 2016, eggs count and adult population of five different sucking pests (dusky bugs, jassid, thrips, white flies and mites) were recorded from sowing to harvesting seasons. Predators (Chrysoperla, Geocoris and Argiope) population was also observed. Percentage of host plant susceptibility index (HPSI) for each cotton variety was also calculated. One way ANOVA was used to analyzed the data statistically. Variety and year had significant (P<0.05) effect on pest populations, eggs count and predator’s populations. It was found that Bt cotton was more resistant to pest attacks than non-Bt. Therefore Bt cotton should be grown to combat pest infestation.
To share on other social networks, click on any share button. What are these?
