they also get sprayed more, specially strawberries in CA, but now with the arrival of the spotted wing drosophila over much of the US, probably every berry will be sprayed. I pick my blueberries at a U-pick up north, and there they are still unsprayed. Not clear how far North the SWD will get, normally it should not be here in Michigan, and certainly this winter has knocked back its northern range by a couple hundred miles. Global warming exceptions may apply.
I think there are some studies that suggest organic have higher levels of some nutrients, but I honestly don't know if that's biologically relevant to the humans eating them. The pesticide residue is a bit concerning to me so I try to buy organic for the kids and myself when I'm pregnant or breastfeeding. Again, I don't know if there are any studies that can point to adverse effects when exposed to pesticides through diet. If you want to reduce your exposure but are unable to go totally organic, you can alternate buying organic and conventional or focus on buying what you eat most often as organic and going conventional for your less frequent berries.
The bad thing about strawberries (I eat them, though) is that in California they are grown in rows that have been covered with plastic (yes, virtually all your strawberries come from there). I assume it is to get fast crops but of course soil that can not breathe becomes unhealthy. Something (perhaps nematodes) have to be controlled with a pesticide containing bromine, which is considered very toxic. Here in Michigan, strawberries are organically grown, it is more of its natural range, but as posted before, if the SWD gets here, it's curtains. The really ugly part about SWD is that it attacks crops in early to mid summer, so all these berries have to be sprayed shortly before harvest. Compare with apples, which go unsprayed for a couple of months before harvest (for late maturing apples, early ones maybe only one month).
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