Cotton is a major crop of Pakistan after wheat and it occupies the largest area in Pakistan compared to other crops. Cotton crop earns the country largest export revenues and in addition to the lint, the seed of cotton for oil and meal accounts for 80 percent of the national production of oilseed. Cotton and cotton related products contribute 10 percent to gross domestic product (GDP) and 55 percent to the foreign exchange earnings of the country. The area under the cultivation of cotton crop increased significantly in the last 30 years, around 7.86 million acres in 2015-016. Cotton is an important cash crop grown in Pakistan and it contributes substantially to the national economy of Pakistan and is a key source of livelihood for the rural people (Pakistan, 2012-13). It is widely grown in hot and humid areas where there are high pest hazards as some insects are especially deleterious to cotton yield and its quality.
Stunted, yellow, defoliation and smaller bollsAffected leaves become dry and get fall off. it may causes cankers on stem. Infection is spread to boll, then rotting of boll occurred afterward they get fall off.Circular red lesions on leaves which enlarge and turn white or greySmall, reddish or light colored diseased spots are observed on plant leaves. It attack boll at any stage and infection spread to lint and seed. the bolls affected by the disease have small, water-soaked, circular, slightly depressed, reddish brown spots.sudden and complete wilting of plants.upward and downward curling of leaves accompanied by small as well as main vein thickenings. Bolls remained small in size and failed to open. all parts of badly hit plants are very brittle and ready broken.