Mouche blanche

Class: Les insectes
Common Name: Mouche blanche
Scientific Name: Bemisia tabaci
Potential Host:

Tomato, pepper, squash, melons, cucumber (and other cucurbitaceae members), broccoli, cauliflower, cabbage (and other brassica members), cotton, carrots, potato, and fresh herbs such as basil and mint

Who Am I?

Whitefly is a multi-host with considerable differences that exist in appearance between adult and nymph stages. Females can lay dozens of eggs, usually on the underside of leaves. Nymphs feed by stabbing into the plant with their mouth-parts, sucking up sap from the phloem, and excreting honeydew (a sugar-rich substrate that promotes the growth of sooty mold.) The adults are white and capable of flying, hence the name.

Damage to hosts is caused directly from feeding and indirectly from honeydew. However, their ability to spread viruses have the greatest economic impact. Whitefly vector plant viruses like Begomoviruses, which is a group of plant viruses such as TYLCV in tomatoes and CYSDV in cucurbits. Whiteflies transmit Begomoviruses to host plants.

Control Measures

Grandir à l’intérieur des structures : Gardez la structure fermée et les filets exempts de trous.

Assainissement: Gardez l’environnement proche des cultures en éliminant les mauvaises herbes, les débris de plantes, les parties endommagées, la croissance indésirable des plantes et les plantes à proximité qui ne sont ni cultivées ni protégées.

Utiliser des techniques de surveillance des ravageurs (tels que des pièges) pour suivre les populations d’insectes.

Les insecticides sont fréquemment utilisés chez les populations d’aleurodes, notamment les insecticides cyperméthrine, deltametrin, bifenthrine, diafenthiuron, thiaméthoxame, imidaclopride, acétamipride, buprofezine, spiromesifen, cyantraniliprole, spirotétramat et terpènes synthétiques extrait de chenopodium.

azadirachtine, sel de potassium d’acides gras, souche Beauveria bassiana GHA huile de neem et autres huiles végétales.

Amblyseius swirskii est un acarien prédateur disponible dans le commerce, capable de contrôler de manière significative les populations d’aleurodes.

*Names marked in red are considered to be highly poisonous to beneficial insects.

*Names marked in green are considered to be organic and IPM (integrated pest management) compatible.

Caution and careful notice should be taken when using any plant protection products (insecticides, fungicides, and herbicides). It is the grower’s sole responsibility to keep track of the legal uses and permissions with respect to the laws in their country and destination markets. Always read the instructions written on labels, and in a case of contradiction, work in accordance to the product label. Keep in mind that information written on the label usually applies to local markets. Pest control products intended for organic farming are generally considered to be less effective in comparison to conventional products. When dealing with organic, biologic, and to some extent a small number of conventional chemical products, a complete eradication of a pest or disease will often require several iterations of a specific treatment or combination of treatments.

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