Citrus peelminer

Definition

A minute moth whose larvae tunnel beneath the surface of citrus rinds, creating serpentine mines that blemish fruit and reduce marketability; the common name refers specifically to Marmara gulosa (Gracillariidae), though related Marmara species mine other hosts.

Etymology

From the larval habit of mining the peel (flavedo and albedo) of citrus fruits.

Example

In California orchards, citrus peelminer larvae typically enter fruit near the stem end, leaving narrow, silvery trails visible through the rind; heavy infestations can render navel oranges unmarketable for fresh sale.

Synonyms

• Marmara gulosa

Related Terms

• leafminer
• serpentine mine
• Gracillariidae
• phytophagous
• Integrated Pest Management
• citrus pest

Usage Notes

Strictly a common name; specialists use Marmara gulosa to avoid confusion with other peel-feeding insects. The species occurs from the southern United States through the Caribbean; larval mines are superficial and do not penetrate juice vesicles, distinguishing damage from that of true fruit borers.