Articles
Controlling of beet armyworm (Spodoptera exigua) in shallot by non-chemical methods
Article number
1398_12
Pages
89 – 96
Language
English
Abstract
The beet armyworm (Spodoptera exigua Hübner) is the most critical pest in tropical Allium cultivations.
With a short life cycle and significant damage, S. exigua is a prominent pest found around the shallot field in Indonesia.
Up to now, farmers are still relying on pesticides to control S. exigua resulting in a big concern for environmental and health issues.
The cost of pesticides application is also very high.
The objective of this study was to evaluate the effectiveness of non-chemical methods for controlling the S. exigua in shallot cultivation in the field.
We assessed the use of a light trap in combination with Spodoptera exigua nuclear polyhedrosis virus (SeNPV), egg hand-picking, and insecticide, neem, and Bacillus thuringiensis (Bt) technically and economically.
All the non-chemical treatment can challenge the chemical treatment.
The number of eggs and both L1-L2 and L3-L4 larvae found in shallot leaves treated with non-chemical methods was lower compared to that of conventional insecticides control methods by farmers.
The use of light trap plus SeNPV provides an exciting opportunity for economic benefit to farmers.
This control method had the lowest cost production, and the contrary had the best R/C ratio and profit.
With a short life cycle and significant damage, S. exigua is a prominent pest found around the shallot field in Indonesia.
Up to now, farmers are still relying on pesticides to control S. exigua resulting in a big concern for environmental and health issues.
The cost of pesticides application is also very high.
The objective of this study was to evaluate the effectiveness of non-chemical methods for controlling the S. exigua in shallot cultivation in the field.
We assessed the use of a light trap in combination with Spodoptera exigua nuclear polyhedrosis virus (SeNPV), egg hand-picking, and insecticide, neem, and Bacillus thuringiensis (Bt) technically and economically.
All the non-chemical treatment can challenge the chemical treatment.
The number of eggs and both L1-L2 and L3-L4 larvae found in shallot leaves treated with non-chemical methods was lower compared to that of conventional insecticides control methods by farmers.
The use of light trap plus SeNPV provides an exciting opportunity for economic benefit to farmers.
This control method had the lowest cost production, and the contrary had the best R/C ratio and profit.
Publication
Authors
A. Maharijaya, M. Leiwakabessy, P. Khrisrachmalia, H. Harti, K. Darma, S. Wiyono
Keywords
Allium, Bacillus thuringiensis, light trap, neem, nuclear polyhedrosis virus, SeNPV
Groups involved
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