Potential use of egg parasitoids, &lt;em&gt;Trichogramma pretiosum&lt;/em&gt; riley and &lt;em&gt;Trichogramma chilonis&lt;/em&gt; Ishii against brinjal shoot and fruit borer, &lt;em&gt;Leucinodes orbonalis&lt;/em&gt; Guenée

Niranjana, R. F.; Devi, M. Nirmala; Shanika, W.; Sridhar, R.

doi:10.4038/tar.v27i1.8156

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…( 2021 ), Mukherjee and Ghosh ( 2023 ), Nair ( 1967 ), Niranjana et al. ( 2015 ), Niranjana and Sridhar ( 2014 ), Parvatha ( 2014 ), Patial and Mehta ( 2006 ), Podder and Ghosh ( 2019 ), Poveda ( 2021 ), Prasad and Singh ( 2012 ), Prasad et al ( 2012 ) Ranjith et al. ( 2020 ), Sankaranarayanan and Askary ( 2017 ), Singh and Singh ( 2002 ), Sivapragasam and Chua ( 1997 ), Srinivasan ( 2008 ), Talukder et al.…”

Section: Figure A1mentioning

confidence: 99%

Pest risk assessment of Leucinodes orbonalis for the European Union

Bragard,

Baptista,

Chatzivassiliou

et al. 2024

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a quantitative risk assessment of Leucinodes orbonalis (Lepidoptera: Crambidae), the eggplant fruit and shoot borer, for the EU. The assessment focused on potential pathways for entry, climatic conditions favouring establishment, spread and impact. Options for risk reduction are discussed but effectiveness was not quantified. L. orbonalis is a key pest of eggplant (aubergine/brinjal) in the Indian subcontinent and occurs throughout most of southern Asia with records mostly from India and Bangladesh. The main pathway of entry is fruit of solanaceous plants, primarily exotic varieties of eggplant, Solanum melongena and turkey berry, S. torvum. The trade in both commodities from Asia is small but nevertheless dwarfs the trade in other Solanum fruits from Asia (S. aethiopicum, S. anguivi, S. virginianum, S. aculeatissimum, S. undatum). Other Solanum fruits were therefore not further assessed as potential pathways. The trade in eggplant from Asia consists of special fruit types and caters mostly to niche markets in the EU, while most eggplant consumed in Europe is produced in southern European and northern African countries, where L. orbonalis does not occur. Using expert knowledge elicitation (EKE) and pathway modelling, the Panel estimated that approximately 3-670 infested fruit (90% certainty range, CR) of S. melongena or fruit bunches of S. torvum enter into regions of the EU that are suitable for L. orbonalis establishment each year. Based on CLIMEX modelling, and using two possible thresholds of ecoclimatic index (EI) to indicate uncertainty in establishment potential, climates favouring establishment occur mostly in southern Europe, where, based on human population, approximately 14% of the imported produce is distributed across NUTS2 regions where EI ≥ 30; or 23% of the produce is distributed where EI ≥ 15. Escape of adult moths occurs mostly from consumer waste. By analysing results of different scenarios for the proportion of S. melongena and S. torvum in the trade, and considering uncertainties in the climatic suitability of southern Europe, adult moth emergence in areas suitable for establishment is expected to vary between 84 individuals per year and one individual per 40 years (based on 90% CR in different scenarios). In the baseline scenario, 25% of the solanaceous fruit from Asia

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Section: Figure A1mentioning

confidence: 99%

Pest risk assessment of Leucinodes orbonalis for the European Union

Bragard,

Baptista,

Chatzivassiliou

et al. 2024

EFS2

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“…Soon after the notification of adult moths, the egg parasitoids Trichogramma pretiosum (Niranjana et al, 2015) or T. embryophagum were released alternately to the field at the rate of 100000 eggs/ac at 10 days interval during late evening. The ovicidal insecticide, Acetamipride 20% SP was sprayed 5 weeks after the trap installation as higher numbers of adult moths observed in traps.…”

Section: Bipm Modulementioning

confidence: 99%

Efficacy of Bio-Intensive integrated pest management against brinjal shoot and fruit borer <i>Leucinides orbonalis</i> (Lepidoptera: Crambidae)

Niranjana¹,

Devi

Sridhar

2019

AGRIEAST: J. Agri. Sci.

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Brinjal (Solanum melongena) plays a vital role in the food of South-Asian people, thus the production of brinjal in these countries is quite high. However the production of brinjal does not satisfy the whole demand of people owing to the severe infestation by L. orbonalis. In order to get maximum yield from the cultivation farmers rely on over and indiscriminate use of chemical insecticides. Due to the side effects of over and indiscriminate use of toxic insecticides, now the trend moves towards Bio-intensive Integrated Pest Management (BIPM). The present study conducted to find the efficacy of BIPM over farmer's practices and untreated control in controlling the L. orbonalis. The study evidenced the superiority of BIPM in all aspects viz., lesser shoot infestation (15.82 percent), greatest yield (17,170.22 kg/ha) and higher natural enemies activities (5.25 no./10plants), which was equivalent to untreated control. Besides the treatment BIPM proved its efficacy over farmer's practice and untreated control especially with high percent increase of yield (63.90%), percent reduction of shoot (64.01%) and fruit infestation (80.58%), and less percent reduction of natural enemies' population (8.70%). Apart from this the benefit cost ratio (BCR) ranked in the order of superiority as BIPM module (1:5.75), which was greater than the farmer practice (1:4.96) on brinjal.

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