No abstract

Background: Cultivation of cotton, the staple fiber crop, is expanding in Bangladesh. The crop suffers from the infestation of the sucking insect pests i.e., aphid and jassid. This study investigated the physiomorphic traits, yield and quality of cotton plants regarding the abundance of aphid and jassid.Methods: The study was conducted in Gazipur, Bangladesh with the cotton varieties namely CB12, CB13, CB14, CB15 and HC1. Abundance of the insect pests was recorded through weekly inspection of the field.Result: The tested cotton varieties showed differences in physiomorphic traits, yield and quality attributes. Statistically, aphid and jassid showed the lowest abundance on CB14 and HC1 varieties, respectively and the variety CB14 revealed the lowest plant deformities and resulted the highest yield and quality attributes. Aphid and jassid populations revealed a negative correlation with leaf trichomes and phytochemical contents but showed a positive correlation with the number of leaves plant-1.