unsprayed

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Grown without chemicals that kill bugs

adjective
/ʌnˈspreɪd/

: sin tratar

Seed potatoes are an unsprayed, untreated potato.
unsprayed trees

Now, in a unsprayed house that was nearby, the mosquitoes continued coming in and biting throughout the night, but in the sprayed house, that was it.

Examples

Now, in a unsprayed house that was nearby, the mosquitoes continued coming in and biting throughout the night, but in the sprayed house, that was it.

ReasonTV
I've tasted the apples; they are gorgeous, big, and crisp, and unsprayed.

Blog text (21)
Another 2,000 acres outside the edges of the target section are left unsprayed for comparison.

Academic text (1997)
In New England, apples on about 95 percent of unsprayed trees are typically damaged by apple maggots.

Academic text (2000)
Unruh has been importing specialized parasitoids of the codling moth from its native home in Central Asia and attempting to establish them in unsprayed host trees.

Academic text (1995)
Berry Patch Farms offers unsprayed blueberries for picking.
I've tasted the apples; they are gorgeous, big, and unsprayed.
Pick a gallon of unsprayed blueberries at this Ma & Pa blueberry farm for $10 a gallon.

Surface Forms

unsprayed positive

Morphology

unsprayed = sprayed (transparent) = un + spray + ed

The adjective is formed by adding the productive negating prefix 'un-' to the participial adjective 'sprayed', yielding the straightforward meaning 'not sprayed'.

Etymology

Unsprayed comes from un- meaning 'not' and spray meaning 'to send out small drops of liquid', like when you use a garden sprayer. So unsprayed means 'not treated with a spray', especially of chemicals on plants.