Seedling protection and barrier crops in chili pepper to reduce whitefly denseness and prevalence of pepper yellow leaf curl virus

Abstract Yellow leaf curl disease caused by pepper yellow virus (PepYLCV) and transmitted the whitefly ( Bemisia tabaci ), becomes main problem in major horticultural crops, including chili pepper. The control of insect vector is crucial to overwhelm diseases. experiment was designed verify efficacy integrated focused on barrier crops healthy seedling techniques reduce crowdedness, prevalence virus, crop yield. This used a randomized block design. treatments were two kinds seedlings, with without cover, combined four borders i.e., maize, Sunn–hemp, screen (chiffon), (non-border). result indicated that use protected seedlings able defend against attack B. delay infection for about 2 weeks. together (maize sunn-hemp) reduced number pests, PepYLCV damage up 49.94 – 50.80%, gave highest yields. positive correlation (r) between population incidence 0.925, whereas yield negative (r = -0.8886). These results will provide an advance more valuable practical methods safeguarding production.