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Effecte of Batrachedra amydraula M. (Cosmopterygidae: Lepidoptera) on percentage and economical loss ratio of Phoenix dactylifera L c.v. Barhi | ||
| Basrah Journal For Date Palm Research | ||
| Article 3, Volume 8, Issue 2, 2009, Pages 52-59 PDF (0 K) | ||
| Authors | ||
| Ghazwan Faisal Khalaf; Majed Shenawa Safaih; ; a Abdul Hussen Salah | ||
| Abstract | ||
| This study was conducted to know the percentage of the infection and economical loss cused by Batrachedra amydraula M. (Cosmopterygidae: Lepidoptera)on the date palm (Phoenix dactylifera L.) in Abu-alkhaseb region in Basrah governarate in 2009 season. The study show that the Batrachedra amydraula start infection to date palm at the beginning stage of Jamry and the percentage of infection which was 13.95% in the 1st week of May and increased to which was its highest rate ate the end of May and the begeing of June which reached 52.00% then decreased at end June and July. Also the Results showed that the number of the fruits 4902 fruits/tree in the 3rd week of April, it become 3405.6 fruits/tree in the 2nd week of July as aresult of fall number of fruits it which was to 1496.4 fruits/tree (17.20 kg) , included 590.2 fruits/tree (6.78 kg) , for this season the ratio of economical loss cused by Batrachedra amydraula is 17.33% . | ||
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