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Résumé La pyrale des dattes

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Résumé

La pyrale des dattes (Ectomylois ceratoniae zeller) l’un des principaux déprédateur qui menacent la phoeniciculture en Algérie. Nous avons dans un premier temps étudié les paramètres bioécologiques de la pyrale des dattes dans les conditions contrôlées (chambre d’élevage), sur la variété de mech-degla. Les résultats ont permis de caractériser les paramètres liés au stade œufs tel que l’incubation, l’éclosion, le nombre de pontes et le nombre d’œufs par ponte. Nous avons réalisé aussi la biométrie des différents stades larvaires et adultes ainsi que la durée de chaque stade. Nous avons montré aussi que la troisième génération est la plus dangereuse dans les palmeraies, suite à des captures d’adultes par des pièges à phéromones.

L’utilisation du spinosad un biopesticide a montré un effet insecticide important surtout sur le premier stade larvaire L1, qui peut atteindre 100% dans les conditions contrôlées.

Mots clefs : Pyrale des dattes, Ectomylois ceratoniae, Biskra, Spinosad, Bioécologie.

Abstract

The carob moth (Ectomylois ceratoniae zeller), is recognized as the most economically damaging pest of dates in Algeria, our work was based in the first place on the study of bio- ecological parameters of the carob moth in controlled conditions (upbringing room) on Meche-Degla variety, that had allowed us to carachterise the biometry of different larva and adult stages.

Then, our study allowed us to know the reproduction potential of this damager (number of lain eggs, number of pontes and rate of hatching) and the duration of each developing stage.

We had also shown that the third generation is the most dangerous for palm trees.

In the second place, the results of biological control show us the use of spinosad had given a high efficiency especially on the first larva stage L1, it can reach 100% in controlled conditions.

Key words: Carob moth, Ectomylois ceratoniae, Biskra, Spinosad, Bioécology.

صخلم

شبخعح تشاشف سىمخنا هم شطخأ ثافَا

ًخنا دذهح تعاسص مٍخىنا

ًف

،شئاضجنا يزه

تساسذنا جنواىح

ًف اهشطش لولأا

صئاصخنا تٍجىنىكاىٍبنا

تشاشفن شمخنا و كنر

ًف فوشظنا تٌشبخمنا

فشغ) شثاكخنا ىهع (

فىص شم تهقد

، يزنا حمس اىن

تفشعمب لىطنا و نصىنا فهخخمن محاشم تشاشفنا ناذٌذنا (

و ثاغنابنا و) كنزك جحمس اىن تساسذنا تفشعمب ةسذقنا تٍجاخولإا

يزهن ةششحنا دذع (

ثاعٍبنا

ًخنا ذنىح هم فشط مك ىثوأ

، دذعو ثاشمنا

ًخنا طٍبح اهٍف ىثولأا تجسد،

تبىصخنا ضىٍبهن

ةذمناو تٍىمضنا مكن

،تهحشم اعٌأ

ًف اىخساسد اىعطخسا حٍظىح واقسلأاب ةذمنا تٍىمضنا ةشٍطخنا

ًخنا شثاكخح اهٍف تشاشفنا

ًف

لىقحنا .

امأ تبسىناب شطشهن

ًواثنا جىٍبف،

جئاخىنا ىهع نأ تمواقمنا تٍجىنىٍبنا

لامعخساب ذٍبم

Spinosad جبثأ

تعاجو ىهع

تهحشمنا تٍقشٍنا L1

ًهو تهحشمنا ةشٍطخنا ىهع شمخنا نأو ازه ذٍبمنا ققح تبسو ثاٍفو مصح ىنإ 100%

ًف فوشظنا

تٌشبخمنا .

تاملكلا ةيحاتفملا تشاشف:

ةشكسب،سىمخنا

، Spinosad

،

،تٍجىنىكاىٍبنا تحفاكمنا

تٍجىنىٍبنا .

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