Occurrence of citrus rind borer, Prays endolemma Diakonoff (Lepidoptera: Yponomeutidae) and other arthropods on pummelo, citrus maxima (Burm) Merr. (Rutaceae) in Davao Region, Philippines

Leslie T. Ubaub

Issue Date

10-2013

Abstract

Citrus Rind Borer (CRB) remains the major insect pest of Pummelo in Region XI. The study aimed to document the occurrence of CRB and other arthropods in the Pummelo farm. Several methods were compared which included the use of sweep net and light traps, dissection and examination of pummelo fruits, examination of leaves and twigs of pummelo trees, from May to November 2010. There were no CRB adults collected using sweep net method for the whole duration of the sampling period although all the pummelo fruits examined over a 5 week-preriod were infested with CRB larvae. Infestation ranged from 1 to 11 larvae per fruit. Other insects caught by light traps and sweep nets in 25-week period were recorded and the hymenopterans were the most numerous group caught by light traps . These were members of the families Chalcidoidae (11.56 ± 5.16), Ichneumonidae (3.4 ± 1.71), and formicidae (9 ± 4.75). There were also psyllids collected by light traps with a mean of 15.04 ± 6.35 per trap. Moreover, collection using sweep net yielded an average of 10.84 ± 3.65 psyllids per 10 sweeps. Various species of spiders were observed regularly on the trees. A particular species belong to the family Salticidae was seen preying on a CRB larva. Thrips were also observed to feed on the flowers of pummelo and a total of 380 adults were collected in five months.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

27

Issue

2

Page

207-208

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

YPONOMEUTIDAE; LEPIDOPTERA; ARTHROPODA; CITRUS MAXIMA; PUMMELOS; FRUIT DAMAGING INSECTS; PHILIPPINES

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