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Art-paysager.com • Voir le sujet - acariens sur orme de chine
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acariens sur orme de chine

MessagePublié: 01 Février 2011, 16:23
par marine
Bonjour,

On m'a offert il y a un peu plus d'un mois un orme de chine âgé de 10 ans (acheté chez truffaut) et il y a quelques jours certaines branches ont commencé à perdre leurs feuilles. J'ai d'abord cru à que mon bonsaï souffrait du manque d'humidité de l'air ambiant (il se trouve en appartement devant une fenêtre). La perte des feuilles a continué et la majorité des branches ont été atteintes et ce n'est que là que je me rendue compte qu'il y avait des toiles d'araignées sur mon bonsaï. En regardant de plus près j'ai remarqué des petites bêtes. Après quelques recherches sur internet j'ai identifié ces bêtes comme étant des acariens.
Toutes les feuilles sont tombées. J'ai donc traité mon bonsaï avec de la bifenthrine hier soir et aujourd'hui je ne vois plus rien bouger mais je suis très inquiète pour mon bonsaï. Que puis-je faire maintenant? Mettre de l'engrais?
Merci par avance pour vos conseils.

Marine

Re: acariens sur orme de chine

MessagePublié: 21 Mars 2011, 14:35
par admin
Les acariens s'installent dans les milieux sec et dépourvu d'eau.
Ils détestent l'arrosage et surtout l'aspersion des branches.
N'hésitez pas à pulvériser les branches d'eau, et d'effectuer des bains d'eau sur l'ensemble de la motte.
Attention a ne pas mettre d'autre bonsaï a proximité car les acariens adorent passer d'un bonsaï à un autre.
Enfin, pour les perfectionnistes, il est bon d'effectuer un rempotage a cette période pour évacuer l'excès de terre envahie par les oeufs d'acariens pour remplacer par de l'akadama tout en effectuant un nettoyage important de votre poterie