Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)

Fungus gnats (Diptera: Sciaridae) are major insect pests in greenhouse production systems. Their larvae reside in the growing medium and can cause severe damage on the plants when feeding on the root system. When the fungus gnats occur at high population densities, the damage can inhibit plant growt...

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Autor principal: Diderot, Therese
Formato: M2
Lenguaje:Inglés
sueco
Publicado: SLU/Dept. of Biosystems and Technology (from 130101) 2016
Materias:
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author Diderot, Therese
author_browse Diderot, Therese
author_facet Diderot, Therese
author_sort Diderot, Therese
collection Epsilon Archive for Student Projects
description Fungus gnats (Diptera: Sciaridae) are major insect pests in greenhouse production systems. Their larvae reside in the growing medium and can cause severe damage on the plants when feeding on the root system. When the fungus gnats occur at high population densities, the damage can inhibit plant growth, or in worst-case kill the plant entirely. Moreover, both adult and larva are capable of spreading certain diseases within the greenhouse. There is a need for new methods to supplement the current integrated pest management, and one alternative is to use odours that repel fungus gnats from the growing area. A push-pull strategy was developed using essential oil of peppermint (Mentha piperita) to repel the fungus gnats, and yellow sticky card traps to attract and kill them. An experiment was conducted to evaluate the potential of using this strategy to diminish the fungus gnat population in organic greenhouse production of basil (Ocimum basilicum). Furthermore, the experiment tested if it was possible to enhance the effect of the strategy by equipping the yellow sticky cards with green light-emitting diods (LED). The results show that the push-pull strategy was successful in reducing the number of fungus gnats in the treated areas. However, the effect of the strategy was not enhanced by equipping the yellow sticky cards with green LEDs.
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spelling RepoSLU97002016-10-17T14:38:22Z Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae) Utvärdering av en push-pull strategi mot sorgmyggor (Diptera: Sciaridae) Diderot, Therese fungus gnats pest management push-pull strategy peppermint oil yellow sticky card traps LED Fungus gnats (Diptera: Sciaridae) are major insect pests in greenhouse production systems. Their larvae reside in the growing medium and can cause severe damage on the plants when feeding on the root system. When the fungus gnats occur at high population densities, the damage can inhibit plant growth, or in worst-case kill the plant entirely. Moreover, both adult and larva are capable of spreading certain diseases within the greenhouse. There is a need for new methods to supplement the current integrated pest management, and one alternative is to use odours that repel fungus gnats from the growing area. A push-pull strategy was developed using essential oil of peppermint (Mentha piperita) to repel the fungus gnats, and yellow sticky card traps to attract and kill them. An experiment was conducted to evaluate the potential of using this strategy to diminish the fungus gnat population in organic greenhouse production of basil (Ocimum basilicum). Furthermore, the experiment tested if it was possible to enhance the effect of the strategy by equipping the yellow sticky cards with green light-emitting diods (LED). The results show that the push-pull strategy was successful in reducing the number of fungus gnats in the treated areas. However, the effect of the strategy was not enhanced by equipping the yellow sticky cards with green LEDs. Sorgmyggor (Diptera: Sciaridae) är allvarliga skadegörare inom växthusodling. Den största skadan orsakas av deras larver som lever i substratet, där de bland annat livnär sig på växternas rötter. När sorgmyggorna förekommer i stort antal kan detta leda till att växternas tillväxt hämmas eller att de i värsta fall dör. Både vuxna och larver kan dessutom sprida vissa sjukdomar inom växthuset. Det finns ett behov av fler metoder som kan komplettera det nuvarande integrerade växtskyddet, och ett alternativ är att använda dofter som repellerar sorgmyggorna från odlingsområdet. I denna studie utvecklades en push-pull strategi som använde eterisk olja från pepparmint (Mentha piperita) för att repellera sorgmyggorna, och gula klisterskivor för att fånga och döda dem. Ett experiment utfördes för att undersöka om denna strategi kunde användas för att minska antalet sorgmyggor i ekologisk växthusodling av basilika (Ocimum basilicum). Vidare undersöktes också ifall metoden kunde förbättras genom att utrusta klisterskivorna med gröna lysdioder (LED). Resultaten pekar på att den utvecklade push-pull strategin lyckades i att minska antalet sorgmyggor. Däremot förbättrades inte metoden genom att utrusta klisterskivorna med gröna LED. SLU/Dept. of Biosystems and Technology (from 130101) 2016 M2 eng swe https://stud.epsilon.slu.se/9700/
spellingShingle fungus gnats
pest management
push-pull strategy
peppermint oil
yellow sticky card traps
LED
Diderot, Therese
Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title_full Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title_fullStr Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title_full_unstemmed Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title_short Evaluation of a push-pull strategy against fungus gnats (Diptera: Sciaridae)
title_sort evaluation of a push-pull strategy against fungus gnats (diptera: sciaridae)
topic fungus gnats
pest management
push-pull strategy
peppermint oil
yellow sticky card traps
LED