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Bermisia Tabaci

Bulls
2024-10-31
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Sorry, I have another question, what is the effective composition of JS, JWA, JHS to combat whiteflies on melon plants? TQ

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D K 2024-11-02 06:19:39
Hi,

To make 20L of pesticide that can control Bemisia tabaci, use 300ml JWA, 300ml Ginkgo berry JHS and 40g of fine soil or clay.
Water has to be soft water. Spray when the air humidity is high.

300ml of Ginkgo berry JHS can be substituted with either 300ml of Oleander JHS, or 300ml of Bracken Fern JHS, or with 40g of sodium hydroxide (98% pure NaOH), or with 40g of potassium hydroxide (90% pure KOH).

This is a contact pesticide. You have to make sure that the insects get covered in the foamy solution and stay wet for as long as possible. This can be tricky because Bemisia tabaci can just fly away when you start spraying and come back when the canopy dries up.

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