I've been reading about aperture, and depth of field. Usually I try to take insects and plants using Macro mode, but I tried out the full-zoom technique again today and was happy with the result. Basically, if you go full zoom, but focus on something close to the camera, you get great blurring of the background.
My camera won't focus under 1 metre at full zoom, so I crouched 1 metre away from some flowers, and zoomed full on them, and half-pressed the shutter to focus on the flower, then waited for one of many bees to land on it. Once the bee moved into a side-on position, I clicked, and got this :) 'macro' of a bee without using macro!
(This is a crop out of the 100% scaled original image.)