The ten cotton varieties were screened for resistance against whitefly, jassid and thrips at the experimental farm of Cotton Research Institute (CRI), Multan. Among the selected genotypes, SLH-284 exhibited relative resistance to whitefly, while VH-156 showed low susceptibility to thrips (0.7/Leaf). Notably, SLH-284 displayed greater resistance to whitefly attack. In August, a high jassid population (5.6/Leaf) was observed. Cotton genotypes BH-167, FH-113, and VH-148 were found to be susceptible to high infestations of insect pests, resulting in reduced cotton yield. In addition, jassid indicated peak population during August. The result indicated that VH-156 showed the resistance against thrips. From this experiment, it was observed that low infestation of whitefly and thrips occurred on SLH-284 and VH-156 cultivars. So, the overall results showed that VH-156 and SLH-284 can be used in IPM program. The study aimed to explore the impact of varied spacing and abiotic factors such as temperature, rainfall, and relative humidity on the population dynamics of sucking insect pests (specifically Bemisia tabaci, Thrips tabaci, and Amrasca devastans) within unsprayed conditions. A simple correlation analysis was employed to discern the relationships between these variables. The results of the analysis revealed that rainfall and temperature had a significant and positive impact on jassid populations, whereas relative humidity showed a non-significant effect. Similarly, temperature exerted a positive influence on both thrips and whitefly populations, while relative humidity and rainfall did not exhibit a significant impact on thrips. For whitefly, a significant and positive correlation was observed with relative humidity, but rainfall did not show a significant impact. To further quantify the relationships, Multivariate Regression Analysis computed the coefficient of determination (R2). The results indicated that temperature, humidity, and rainfall collectively influenced 53 %, 36.8 %, and 66.4 % of the population fluctuation of jassid, thrips, and whitefly, respectively. These findings underscore the intricate interplay of abiotic factors in shaping the dynamics of sucking insect pests, providing valuable insights into the environmental determinants of their populations under unsprayed conditions. © 2018 The Author(s)

Benefits and harmful effects of Bt adoption technology are mainly related with cotton production where lot of insecticides are needed for management of arthropod herbivory and possible negative impact of crystalline Bt protein on parasitoids and predators is real. Therefore, current review information was focused that Bt should be selective for natural enemies and information was collected from different sources especially CAB abstracts as well as citations from many review articles and books. Usefulness of integrated pest management was highlighted with updated literature to cover the contents.

Cotton contributes significantly to the production of oilseeds and textile fiber globally, and it is an important component of the socioeconomic and political environment. This study aims to evaluate the effects of commercial sulfuric acid and nitrogen, irrigation intervals, phosphatic fertilizer application, and chiseling on cotton growth and yield. The investigation was carried out using a split-plot setup with three replications at the Central Cotton Research Institute (CCRI), Multan, Pakistan. Nitrogen levels (N1 = 50 kg ha-1, N2 = 100 kg ha-1, N3 =150 kg ha-1) were kept in main plots, while sulphuric acid (S1= 0 kg ha-1, S2= 125 kg ha-1, S3 = 250 kg ha-1 and S4 = 375 kg ha-1) was randomized in sub plots respectively. The results showed that watering interval and chiseling had a substantial impact on plant height and the quantity of fruiting parts per plant. Compared to other treatments, interculturing produced higher plant height and more fruiting parts when paired with chiseling and an 8-day irrigation interval. The height and fruiting sections of cotton plants showed a positive link with the long-term effects of phosphatic fertilizer application in wheat crop. The impact of several phosphorus delivery techniques on plant height and fruiting parts varied in bed-furrow planting; hand application without mixing prior to sowing yielded the best results. The application of commercial sulfuric acid, in conjunction with nitrogen, positively affected both plant height and fruiting parts. Increased fruiting parts and plant height were a result of higher sulfuric acid dosages; nitrogen application had no visible impact. These findings can contribute to the development of effective strategies for cotton cultivation, leading to increased productivity and profitability for cotton farmers. © 2018 The Author(s)