Liriomyza brassicae

(Riley, 1885)

Cabbage leafminer, Serpentine leaf miner

Liriomyza brassicae is a leaf-mining agromyzid fly whose larvae create serpentine mines within the leaves of plants. The is a documented pest of brassicaceous crops including cabbage, broccoli, cauliflower, and Chinese broccoli. It has been recorded from South Florida and other regions of the United States including Vermont, Hawaii, and the conterminous 48 states.

Serpentine leafminer by Jerry A. Payne
. Used under a CC-BY-3.0 license.Liriomyza brassicae 198178108 by Ken Kneidel. Used under a CC0 license.

Pronunciation

How to pronounce Liriomyza brassicae: /ˌlɪriˈɒmɪzə ˌbræsɪˈsiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Larvae create serpentine or blotch mines within leaf tissue, visible as pale trails between the upper and lower leaf surfaces. Specific diagnostic features for distinguishing from other Liriomyza require examination of genitalia and wing venation patterns.

Images

Habitat

Agricultural and natural environments where brassicaceous plants occur. Larval is internal, within the mesophyll tissue of leaves.

Distribution

South Florida; United States (Vermont, Hawaii, conterminous 48 states). Distribution records indicate presence across multiple regions of the United States.

Diet

Phytophagous; larvae feed on leaf mesophyll tissue of plants, creating internal mines.

Host Associations

  • Brassica oleracea - cabbage
  • Brassica rapa - turnip
  • Raphanus sativus - radish
  • other Brassicaceae - wild and cultivated brassicaceous plants

Life Cycle

Complete with , larval, pupal, and stages. Larvae develop within leaf mines. Specific duration of developmental stages not documented in available sources.

Behavior

Larvae exhibit leaf-mining , feeding exclusively within internal leaf tissue and creating characteristic serpentine or blotch mines that impair .

Ecological Role

Herbivore; agricultural pest causing damage to brassicaceous crops through leaf mining activity. Associated have been recorded in South Florida, indicating presence of natural enemies.

Human Relevance

Agricultural pest of brassicaceous vegetables including cabbage, broccoli, cauliflower, and related crops. Economic impact through reduced photosynthetic capacity of infested plants.

Similar Taxa

  • Liriomyza huidobrensisBoth are leaf-mining agromyzid pests of agricultural crops; L. huidobrensis () feeds on peas, beans, potatoes, and spinach rather than Brassicaceae, and is limited by high temperatures above 28-29°C
  • Liriomyza sativaeBoth are leaf-mining agromyzid pests; L. sativae (vegetable leafminer) has a broader range and is limited by low temperatures and competition with L. huidobrensis, whereas L. brassicae is specifically associated with Brassicaceae

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Sources and further reading