Young leaves are eaten inwards from the edges. Leaves can be totally consumed with consequent defoliation of twigs. The small and large citrus butterfly can strip citrus trees of their leaves and produce a strong foul odor when disturbed.
Caused by the caterpillars of citrus butterfly. The caterpillars feed on the young foliage at the nursery stage and also on young flushes of grown up trees. Fully grown caterpillars are green in color. Severe infestation makes the entire tree defoliated.
Citrus butterfly eggs are attacked by a number of parasitoid species of Ooencyrtus and larvae are parasitised by Apanteles pallidocinctus Gahan. The pupal stage is also attacked by the parasitoid Pteromalus puparum L.
Spray with Fenithrothion or Fenthion 2-3 times at 15 day intervals. The Azodrin trunk treatment is toxic to citrus butterfly larvae smaller than 10mm. Citrimet stem treatments are effective in protecting young trees. Spray treatments of Dipel 2x, Thuricide, Endosulfan WP, Lannate SL, e.t.c can be applied as an outside cover spray.