These are very small, elongated insects that are most prevalent on flowers and buds. Often, their presence is not recognized until the damage from their feeding is obvious. Their sucking of plant juices can cause deforming of buds, flowers, and new growth as well as browning on the margins of flowers
To get rid of thrips, purchase a pesticide. However, the plant should be inspected again every week and the procedure repeated until no infestation is visible. Two repeat applications at weekly intervals are necessary to control successive generations.