Evaluation of nucleopolyhedrosis viruses for the management of fruitworm, helicoverpa sp. and cutworm, spodoptera litura L., in processing tomato

Issue Date

10-2008

Abstract

Tomato fruitworm and cutworm are two of the most important insect pests adversely affecting processing tomato production due to their direct damage on the fruit. Farmers excessively use chemicals to control these pests to ensure marketability of their produce. The excessive use of chemical pesticides has resulted in higher cost of production, consequently, decrease in income for the farmers. In addition, development of pest resistance and pesticide residue left on the fruits harvested are also primary concern. Evaluation of nuclear polyhedrosis viruses (NPVs) for use as alternative non-chemical control agents against fruitworm and cutworm was conducted in 6 different NFC processing tomato production areas in Ilocos. Once a week spray application of combined fruitworm and cutworm NPVs resulted in higher number of undamaged fruits harvested compared to the harvest from plants treated with chemical pesticides, thus translate to higher marketable yield. There was also an increase in gross income and reduction in expense for pesticides when NPVs are used in processing tomato production.

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

22

Issue

2

Page

222

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

SPODOPTERA LITURA; HELICOVERPA; SOLANUM LYCOPERSICUM; PLANT PESTS; PEST RESISTANCE; NUCLEAR POLYHEDROSIS VIRUS

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