These insect monitoring cards feature a unique double sided yellow/blue format. The yellow side attracts flying adult aphids, whitefly, fungus gnats, leaf miners and more. The blue side attracts flying adult thrips. Each card is 4 in. x 5 in. with a 1 in. grid on both sides for easy monitoring. Weather resistant with an easy peel-off backing as well as a hole punched for hanging.
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