Arthropod pests and their effect were studied over two years on three melon crops: watermelonCitrullus vulgaris(L), Sardah and Garma, cultivars of muskmelonCucumis melo(L). Melon fly,Dacus cucurbitaeCoquillett; Baluchistan melon fly,Myiopardalis pardalinaBigot and melon aphid,Aphis gossypii(Glover) where the major insect pests. Sardah and Garma fruits were damaged more than watermelon. Predacious insects appeared late in the season, and were not of much value in control. Pest attack was higher at Kandahar than at other sites.