DAMAGE DUE TO THE HYBRID SPARROWS ON DATES (PHOENIX DACTYLIFERA L.) IN THE PALM PLANTATIONS OF OUARGLA (THE SAHARA, ALGERIA)
Sparrow (Passer domesticus × Passer hipaniolensis) causes enormous damage on the fruit of Phoenix dactylefera, indeed, it causes date losses of Deglet-Nour in the valley of Ouargla. The estimation of the damage on dates is variable from one block with another, and palm trees with another. In the first block on the edge of the palm plantation of Khezana, the rates of attacks are high, fluctuating between 6.3 and 8.5% (m = 7.2±0.84%). At the level of the second block, that of the medium of the same palm plantation, the rates range between 5.6 and 9.5% (m = 6.7±1.43%). The percentages of dates deteriorated on the palm trees and fallen on the ground in the third block located close to the basin of the same palm plantation is between 3.9 and 5.6% (m = 4.4±0.63%). On the other hand on the edge of the palm plantation of Frane, the rates of losses are less important, they fluctuate between 4.0 and 6.0% (m = 4.9±0.61%). On the other hand, in the middle of the same studied palm plantation, the fruit rates lost vary between 4.8 and 7.4% (m = 5.7±0.90%). Beside a water basin of the palm plantation in Frane, the rate of attack is between 4.7 and 6.9% (m = 5.8±1.00%). It should also be noted that in the agro-ecosystem of Hassi Ben Abdellah the rates of loss in the edge close to the windshield range between 2.4 and 5.8% (m = 4.5±1.3%). In the medium and close to the basin to irrigation of this zone, the percentages of wasted dates fluctuate respectively between 4 and 61% (m = 5.3±0.8%) and between 4.4 and 4.8% (m = 4.6±0.1%).
Guezoul, O., Sekour, M., Souttou , K. and Doumandji, S. (2013). DAMAGE DUE TO THE HYBRID SPARROWS ON DATES (PHOENIX DACTYLIFERA L.) IN THE PALM PLANTATIONS OF OUARGLA (THE SAHARA, ALGERIA). Acta Hortic. 994, 341-346
damage, hybrid sparrow, dates, palm plantation, Ouargla (Sahara, Algeria)