This tool is part of the Citrus Resource

Citrus Pests

 

Little leaf notcher

 

Scientific name

 

Artipus floridanus (Coleoptera: Curculionidae)

Similar species

 

Sri Lanka weevil, Myllocerus undecimpustulatus
The Sri Lanka weevil has spines along the back femur and the little leaf notcher does not.

Distribution

 

United States: mainly along the east coast of Florida from the Keys north to Volusia County.

Worldwide: throughout the Caribbean.

Native to Florida and the Caribbean islands.

Diagnostic characteristics

 
Adults
  • Measures 5 - 6.5 mm (0.2 - 0.25 in.) in length.
  • Broad snout.
  • Grayish-white in color varies to scattering of metallic green scales on a pale background.
  • Hardened forewings (elytra) cover the abdomen.
  • Punctures in elytra are deep and obvious.
Larvae
  • White, grub-like insects.
  • Mature larvae measuring 9.5 mm (0.37 in.) in length.
Eggs
  • Eggs masses are an irregular shape.
  • Eggs masses contain 12 - 130 eggs.
  • Eggs were white to yellow.
  • 0.8 mm (0.031 in.) in length and 0.35 mm (0.014 in.) in width.

Hosts

 
Citrus hosts

All Citrus species and their hybrids.

Non-citrus hosts

The little leaf notcher has over 150 known host plants from many plant families.

Host damage

 
Leaves
  • Adults feeding on foliage results in marginal notching of leaves on young, tender shoots.
  • Eggs are laid in masses on mature leaves.
  • Egg masses contain a gelatinous substance which protects the eggs and holds the leaves together.
Roots
  • Newly hatched larvae fall from the leaves and burrow into soil to feed on the roots of citrus trees.
  • Larval feeding results in a weakened and stressed tree.

Biology

 

This weevil is flightless and is dispersed by transportation of plants. The development from egg to adult ranges from 60 - 120 days with three to four overlapping generations per year. There are 6 larval instars. Larvae feed and pupate underground. Adult lifespan is 160 days. A female lays 1,220 eggs during her lifetime.

References

 

Duncan, L.W., M.E. Rogers, C.W. McCoy, S.H. Futch, J.H. Graham, and H.N. Nigg. 2011. Florida Citrus Pest Management Guide: Citrus Root Weevils. University of Florida. (http://edis.ifas.ufl.edu/cg006).

Authors

 

Weeks, J.A., K.W. Martin, A.C. Hodges, and N.C. Leppla

 

Citrus Pests
Content last updated June, 2012
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