author(s)
KA Chudasama, BB Kabaria, PB Kaneria, MF Acharya and MV Variya

abstract
The white grubs are destructive and troublesome insect pest all over the world. White grubs are called “Chaffer beetle” or “May- June beetle”. White grubs have been defined as larvae of Melolonthidae. White grubs are root feeders and their Beetles feeds on the leaves of host plants. Their infestation has been reported throughout the country and magnitude of the problem has been widespread over the past years. South Saurashtra region of Gujarat is major groundnut growing area. The major white grub species associated with groundnut crop were surveyed in South Saurashtra, during May to October, 2017 and 2018. Adults were collected in the vicinities of the groundnut ecosystem by utilizing light traps with mercury light bulb as source. The survey revealed 23 species of Scarabaeidae. The incidence of white grub was commenced from 23^rd Standard Meteorological Week (SMW) i.e.1^st week of June and continued till 39^th SMW (4^th week of September) which ranged from 7 to 1784 beetles per trap per week. Disappearances of beetles were observed after the 4^th week of September during the both consecutive years. The scarabaeid beetle's population attracted in light trap at Prabhatpur (6269) was lowest during 2017, while the highest beetles (10258) was recorded at Dhanfuliya during the year 2018.