Seasonal Fluctuation of the Date Palm Fruit Stalk Borer, Oryctes elegans Prell (Coleoptera: Scarabaeidae), in Date Palm Plantations in Al-Qassim Region, Saudi Arabia

effect of inhibitors from plant seeds on digestive proteolytic activities in larvae of the date palm fruit stalk borer, oryctes elegans prell (coleoptera: scarabaeidae)

the date palm fruit stalk borer is one of the most important pests of date palm in the world. biochemical properties of digestive proteases in oryctes elegans prell larvae were investigated in this research and optimal total proteolytic and trypsin activities were obtained at ph 9.0 and 11.0, respectively. activity staining of protease on sds-page showed one isoform. also, zymogram pattern of t...

Assessing Genetic Diversity of Shishi Date Palm Cultivars in Saudi Arabia and ‎Qatar Using ‎Microsatellite Markers ‎

In this study fourteen microsatellite primer pairs were used to study the genetic diversity of Shishi Date palm in Qatar. A total of 32 date palm (15 Shishi cultivar, 10 Khalas and seven male date palms) were collected from Qatar and 5 Shihi cultivars were collected from Saudi Arabia ‎for comparison. The Shishi set collected from Qatar was selected from ‎different regions to represent the ‎gene...

Al-Ayedh: Rearing the Red Date Palm Weevil 353 EVALUATION OF DATE PALM CULTIVARS FOR REARING THE RED DATE PALM WEEVIL, RHYNCHOPHORUS FERRUGINEUS (COLEOPTERA: CURCULIONIDAE)

Development of red date palm weevil Rhynchophorus ferrugineus (Olivier) was evaluated on 4 popular cultivars of date palm, viz., ‘Khalas’, ‘Sukkary’, ‘Khasab’, and ‘Sillaj’ for 2 consecutive generations. The weevils reared on ‘Sukkary’ showed significantly better growth expressed in most parameters such as length, width and weight at larval, pupal and adult stages. Significantly greater numbers...

Faleiro et al.: Date Palm Cultivar Resistance to Red Palm Weevil 1529 SCReening Date Palm CultivaRS FoR ReSiStanCe to ReD Palm Weevil, RhynchophoRus feRRugineus (ColeoPteRa: CuRCulioniDae)

Date palm, phoenix dactylifera l. (arecales: arecaeae) is the most important crop of the arabian Peninsula. the Kingdom of Saudi arabia is among the top 3 date producing countries of the world estimated to have over 400 date palm cultivars of which 25 are important and yield 1.3 million tons of dates annually. the red palm weevil (RPW) Rhynchophorus ferrugineus (olivier) (Coleoptera: Curculioni...

Cullus induction in shahani date-palm embryo