author(s)
Muhammad Siddique Khanzada, Tajwar Sultana Syed, Shagufta Rani Khanzada, Ghulam Husssain Abro, Muhammad Salman, Sajjad Anwar, Muhammad Sarwar, Adeel Aslam Perzada, Su Wang, Azmat Hussain Abro

abstract
Present studies were carried out on occurrence and abundance of insect pests, thrips, Thrips tabaci, whitefly, Bemesia tabaci and their predator, Geocoris spp., on cotton, Gossypum arborium L. Results revealed that thrips, whitefly and their natural enemy populations varied with different dates and plant’s phenology. At Tando Allahyar, thrips and whitefly population was very low (3.00+0.15, 1.00+0.35 per leaf) in 2^nd week of April, but peaked during last week of July (75.6+0.78, 24.45+55), respectively. Predator, Geocoris remained minimum (1.00+0.14) in 3^rd week of April and maximum (12.00+0.85) in last week of July. Likewise at Crop Protection Field, Sindh Agriculture University, Tandojam, thrips and whitefly population was minimum in 1^st week of May (15.55+0.52, 5.56+0.42) and reached at peak (191.6±0.85, 91.6±0.85), respectively on last week of August. Predator, Geocoris population was minimum (4.00+0.60) in 1^st week of May and maximum (25.6±0.59) during 3^rd week of August. Temperature and humidity varied during different dates and time to play imperative role in increasing thrips, whiteflies and their predators.