Where are eggs of the azalea leafminer laid?

• A. Underside of leaves along midribs.
• B. On the upper surface near the leaf margins.
• C. On the stems near the leaf axils.
• D. In the soil at the base of the plant.

Answer: (A)

Eggs are laid on the underside of azalea leaves, along the midrib. This placement positions the tiny eggs where they’re protected from direct sun and rain and where the newly hatched larva can immediately begin feeding just beneath the epidermis to start its characteristic serpentine mine. When scouting, check the lower leaf surface along the main vein for tiny eggs, since that’s where azalea leafminer tends to place them. Eggs on the upper surface, stems, or soil are not typical of this pest.