نمط التوزيع المكاني لحشرة سوسة النخيل الحمراء ( Rhynchophorus ferrugineus Oliv.)‎ في بساتين نخيل التمر في مملكة البحرين

الملخص EN

The dispersion pattern of the Rhynchophorus ferrugineus was studied in five date palm plantations located in the northern Governate, Kingdom of Bahrain.

Sampling of adult red palm weevils was collected weekly from 59 baited pheromone traps during 2009-2010.

The spatial distribution of the weevil population was described by using several statistical analysis methods including dispersion parameter K, variance to mean ratio, David Morris index of dispersion, negative binomial distribution, Lloyd’s index of crowding, Taylor power law and Iwao’s regression.

The results of these analyses revealed the high aggregate nature of the red palm weevil in date palm plantations.

Study of the Spatial Distribution of red weevil could be used as a decision-making tool for a better implementation of the weevil integrated management program, and to reduce the amount of insecticides applications in date palm plantations.