Fruit trees: time to spray against aphids

 Yes, it's that time of year again: this is how it starts, with just a few black dots on the undersides of the leaves, this is on a Pear tree which is being trained as a cordon:

 Can you see those black dots? Those are the first few blackfly, or aphids - same thing, they are all sap-sucking critters which ruin our plants. You might also observe that the leaves are starting to curl under: this is a very typical sign of aphid infestation, because the aphids are not content with just sucking the sap from the leaves and getting a free meal: no, they have to......

 

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