Field Evaluation of Mallada desjardinsi (Navas) (Neuroptera: Chrysopidae) Against Asian Citrus Psyllid, Diaphorina citri Kuwayama


Affiliations

  • National Research Centre for Citrus, Nagpur, Maharashtra, 440 010, India

Abstract

Studies on field evaluation of various stages and doses (eggs @ 2, 4 and 6/shoot, early instar larvae @ 2 and 4 /shoot, adults @ 1 and 2 pairs/shoot) of a chrysopid predator, Mallada desjardinsi (Navas) (Neuroptera: Chrysopidae) along with foliar application of malathion (0.06%) were conducted in Nagpur mandarin (Citrus reticulata Blanco) orchard with Asian citrus psyllid (Diaphorina citri Kuwayama) infestation during spring 2010, 11 and 12. Two releases of each treatment were made at an interval of 2-weeks. The observations on D. citri nymphal population were recorded at weekly intervals before and after the release of the predator. D. citri nymphal population was significantly less in malathion. Among the M. desjardinsi release stages and doses, early instar larvae @ 4/shoot, adults @ 2 pairs/shoot followed by eggs@ 6/shoot were found effective in reducing the D. citri population.

Keywords

Chrysopid Predator, Mallada desjardinsi, Field Evaluation, Asian citrus psyllid.

Subject Discipline

Entomology

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