Iran Mohammadpour - Agricultural Engineering Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
Majeed Askari Siahooei - Plant Protection Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
Behjat Tajeddin - Agricultural Engineering Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
Fatemeh Koohpayma - Plant Protection Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
Abdoolnabi Bagheri - Plant Protection Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.

Piarom is considered as one of the most important semi-dried date fruits in Iran which has been highly affected by stored pests. The current study was aimed to evaluate the effects of the modified atmosphere packaging (MAP) and vacuum packaging (VAP) methods on storage pests control and date quality. To do so, Piarom variety were packaged in two package systems, including passive modified atmosphere and vacuum package system. The control samples were kept unpackaged. The packages were kept under two different storage conditions; at ۴ °C and ۵۵ ± ۱۰% RH, and ۲۵-۲۷ °C and ۷۰ ± ۵% RH for ۳۰, ۶۰, ۹۰ and ۱۵۰ days. The experiment was carried out based on a completely randomized design arranged in factorial with four replicates. The results showed that Indian meal moth Plodia interpunctella (Hübner)and sawtoothed grain beetle Oryzaephilus surinamensis (L.) are the most important storage pests with ۸۷.۵ and ۱۲.۵% contamination, respectively. The passive MAP and VAP reduced the pests infestation rate significantly compared to control. Also, they could better preserve pH (۵.۸۸ and ۵.۸۵ for MAP and VAP, respectively) than the control (۵.۷۸). Changes in water activity in MAP and VAP were almost the same at the two storage conditions i.e., ambient and at ۴ °C and was significantly different from the control. The maximum water activity change was observed in control treatment.

date palm, Modified atmosphere, Storage pests, MAP, VAP