UCCE farm advisor David Haviland demonstrates beat sampling for citrus thrips, <i>Scirtothrips citri,</i> in blueberries using a piece of black acrylic.
UCCE farm advisor David Haviland demonstrates beat sampling for citrus thrips, Scirtothrips citri, in blueberries using a piece of black acrylic.
Credit: Stephanie Rill