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Tag Archives: aphis

Video: How to control aphids on apple trees

At this time of year (late May), you often see ants climbing up a fruit tree. They are there because they are looking after their herds of aphis. The aphids produce a sweet liquid that the ants collect and use as a foodstuff. So if you see ants going up your fruit tree, from the ground into the branches and then onto the leaves, you know that you have aphids. How can you get rid of the aphids on your apple tree? This depends. You may have enough ladybirds, hoverflies and lacewings to control the aphids naturally, and if the infection is not too bad, they will remove most of the aphids and the tree won’t suffer. However, if you find leaves completely folded up, there are too many aphids and it will be very difficult to do something about it. One way of controlling aphis attack is to spray the tree with a soapy liquid, with ordinary washing up liquid at the same concentration that you use to wash the dishes. However, this will not solve the situation when it has reached the stage at which the leaves are curled up. Another possibility is to use an organic spray called pyrethrum. This will be partially effective. The overall message is to make sure that the amount of aphis in your tree does not get too excessive, and take into consideration whether there is sufficient presence of predators to keep the aphis population under control.
Narration: Dan Neuteboom
Camera: John Paddy