Efficacy of plant extracts and oil against leafhopper (Amrasca biguttula biguttula) in organic eggplant production

Issue Date

10-2013

Abstract

Eggplant is an important fruit vegetable in the Philippines. It is attacked by several insect pests, one of which is eggplant leafhopper. Studies were conducted to evaluate the efficacy of extracts from plants such as Tinosphora rumphi, Capsicum frutesens, Curcuma longa, Tagetes erecta and Gliricidia sepium and oil against leafhoppers infesting eggplant under organic vegetable production system. Control was provided for comparison. Spraying was done weekly starting 21 days after transplanting (DAT) using 5% concentration. The total number of leafhoppers per plant (3 leaves per plant) was determined before spraying and weekly thereafter. The extracts of C. frutesens and G. sepium and oil effected the highest reduction in leafhopper population followed by T. rumphi and C. longa. Significantly higher number and heavier marketable fruits were likewise harvested from C. frutesens and G. sepium treated plants but comparable with those sprayed with T. rumphi and C. longa extracts. The results suggest that plant extracts are promising botanical insecticide alternatives to manage leafhopper infestation in organic vegetable production.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

27

Issue

2

Page

206

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

AMRASCA BIGUTTULA; EGGPLANTS; PESTS OF PLANTS; PLANT EXTRACTS; BOTANICAL INSECTICIDES; PEST CONTROL

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