Hi I have black aphids on my cherry tree. They have killed the leaves on some of the branches. I sprayed

last night with natures way vege and ornamental but they still are on the tree. I used 15ml/l. Can you help please?

yates

20 October 2020 09:05 AM

It sounds like you're using Yates Nature's Way Vegie & Herb Spray, which is a contact spray and this means it needs to contact the pest to be effective.

Aphids can congregate in large groups on the tips of stems and leaves. It's very likely the initial spray has knocked off or killed the aphids on the outer edges, but not the ones closer to the plant. We recommend to repeat spray weekly to get the aphids under control. As the numbers are quite high, you can use the higher dilution rate at 30ml/1L of water to help control them. 

Topics: Fruit and Citrus Issues: Pests