Effects of essential oil from lemon grass on the Asin corn borer, Ostrinia furnacalis (Guenee)

Issue Date

10-2008

Abstract

The study aimed to determine the effects of the essential oil from lemon grass extracts on the egg masses and larvae of the Asian corn borer. Different amounts of essential oil from lemon grass were used in three set-ups. In the first set-up, third instar larvae were placed side by side with sliced diet arranged in circular fashion. The essential oil was dropped on a filer paper placed in the middle of the Petri dish. Percent larval mortality was recorded. In the second set-up, instead of larvae, egg masses were placed in the middle of the Petri dish and left for several days. Percent hatchability was noted. In the third set-up, the essential oil was incorporated in the artificial diet and neonate larvae were reared on the diet. Growth and development of the larvae were recorded until the adult stage. Results of the first experiment showed that the highest larval mortality was at 100 µL. The larvae placed in the control and lower concentrations were all alive and were able to reach the fifth instar. In the second set-up, zero percent hatchability was recorded on all concentrations while the control had 100%. In the third set-up, only one ACB larva completed its life cycle on T1, larvae did not grow on T2 and T3 while all the larvae on the control (T4) reached the adult stage. The increasing amounts of the essential oil from lemon grass had significantly affected the egg masses and larvae of the Asian corn borer. The results show that the essential oil can be a potent biopesticide against the Asian corn borer.

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

22

Issue

2

Page

205-206

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

OSTRINIA FURNACALIS; CYMBOPOGON; PLANT PESTS; ESSENTIAL OILS; BIOPESTICIDES

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