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Insect Pest of Citrus in Hot Arid Region

Insect Pest of Citrus in Hot Arid Region

Citrus leaf miner (Phyllocristis citrella)

  • It is widely distributed from Australia to Africa. It is found in all the states where Citrus spp. is grown.

Host Range

  • It attacks all species of citrus but prefers sweet oranges. It also infests Pongamia, jasmine etc. The pest is active all-round the year, except during severe winter (December — February).

Nature of damage

  • The minute caterpillars mine into the leaf tissues of tender leaves and feed on them leaving the outer tissue intact.
  • Making silvery appearance presence on the lower surface of leaves
Leaves become crinkled with whitish lines
  • Leaves become crinkled with whitish lines.
  • Incase of severe infestation leaves turn pale, curl badly and dry off.

Description

  • Adult is a silvery white small moth with brown striped forewings having a prominent black spot near the tip and white hindwings.
  • Both pairs of wings are fringed with hairs.
Adult is a silvery white small moth
  • The adult moth measures 6 mm in wing span.
  • On hatching, the caterpillar enters tissue and starts mining between the two Layers it is thin and yellowish green in colour.
  • This results in V shape curling and cupping of leaves.
  • Defoliation and death of young shoot in severe infestation and the fruits turning undersized and juice content reduced.
Whitening and curling of leaves

Description

  • Adults are reddish with jumping legs.
  • Nymphs are flattish, oval in shape and light orange colour.
Adult brown in colour and brown colour band onfore wing
  • Adult is small, brown in colour and brown colour band present on the half of fore wing
  • Eggs are laid in tender shoots and anchored in the tissues by means of short stalks.
  • There are five nymphal instars and the nymphal period is 9-38 days.
  • Adult life span is 135 days for males and 145 days for females and has 16 generations per year.

Source: Insect Pest of Arid Fruit Crops

IPM for Citrus

To know the IPM practices for Citrus, click here.

Last Modified : 2/13/2020



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