Sticky Roll Traps are excellent tools to monitor and control the population of flying insects like White Flies, Jassids, Aphids and Thrips. You can assess your pest management program and detect invasions and outbreaks of pests in your farm and control them right at the beginning. Many of these flying & sucking pests are also diseases carriers / vectors and transmit bacterial / viral diseases from one plant to another. So controlling their spread would result in multiple advantages to the farmer. Usually Sticky Rolls are recommended for protected / closed cultivation. The flying & sucking pests in the farm get stuck to the flue (applied on the plastic sheet) hung at various points in the field and get killed.