White pest on strawberiies and raddishes
What are the pests in the picture on the bottom leaf and what should I do about them.
edited May 2020
They are aphids. Very common at this time of year on many plants. If you have a spray bottle, just fill up with with water and squirt them off, it should knock them all off. Check on undersides of leaves too. Go back to check every day.
The white fluffy things are the outer husks which the aphids cast-off as they moult (they do that 4 times before they are adults) so its presence indicates aphids feeding above (usually on the back of leaves and in tender new growth.)
A trowel in the hand is worth a thousand lost under a bush.