The melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is a major pest of melons in tropical and temperate regions throughout the world except for the northernmost areas (Tabacian et al., 2011). The pest feeds on the underside of leaves, or on growing tip of sprouts, sucking nutrients from the plant, and the foliage may become chlorotic and die prematurely. This feeding also causes a great deal of distortion and leaf curling, hindering the photosynthetic capacity of the plant. Additionally, the pest secretes a great deal of honeydew, which provides a substrate for growth of sooty mold; thus, the quality of fruit may be impaired and the photosynthetic capacity of foliage further hindered (Capinera, 2001). This aphid species effectively transmits potyviruses in cucurbits. Cucumber mosaic virus, watermelon mosaic virus, and zucchini yellow mosaic virus are transmitted by this aphid even despite intensive insecticide applications, probably because the viruses can be transmitted within a very short time-e.g., 15 s (Pitrat and Lecoq, 1980;Blackman and Eastop, 2000;Ng and Perry, 2004).In Turkey, this pest has a very wide range of hosts and is most harmful to cucurbit vegetables and cotton, producing a large number of offspring over the year (Satar et al., 2009;Ulusoy et al., 2018). The management of A. gossypii generally relies on insecticide application. Depending on local conditions, 3-5 applications are made each year. Even in Antalya Province (in the southwestern part of Turkey), where greenhouse melon-growing is frequently practiced, the number of insecticide applications throughout the growing period is sometimes over 10. This makes it possible for the pest to develop resistance to many insecticides quickly (Devonshire, 1989). Development of resistance results in the failure of repeated application of many insecticides, even though doses higher than the label rates are being used (Tabacian et al., 2011).The use of resistant or tolerant plant varieties in the management of melon aphid is an important method of