Leafmining flies (leafminers)

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Ana's notes: It is important to differentiate leafmining flies and leafmining caterpillars, since the management of the two groups of pests is different. The leafminers attacking coffee, cotton, groundnut, soybean and citrus are caterpillars, not leafmining flies. Some work was done on neem for control of leafminers on tomatoes some years back, but it was not published. I am looking for it; it should be added when available.

A.M. Varela, icipe
Is this a Minor Pest?
Minor Pest Title

Leafminers (Liriomyza spp.)

Minor Pest Description

Leafminers (Liriomyza spp.) are small flies, 1.3-1.6 mm in length. The maggot makes long, slender, white mines (tunnels) in leaves. Severely mined leaves may turn yellow and drop. Severely attacked seedlings are stunted and may eventually die. Control measures are necessary when attack is severe, especially on young plants.

Minor Pest What to do.
  • Conserve natural enemies. They are very important in natural control of leafminers. For more information on Natural enemies click here
  • Hand pick and destroy mined leaves.
  • Whenever necessary spray the crop with neem products. Neem water extracts and neem oil give good control of leafminers. For more information on Neem click here
Minor Pest Position
Minor Pest Firstcontent
Pest Type
Host Plants
Amaranth (Revised)
Minor Pest secondContent