Warehouses and food products can be infested by insects and other pests such as mites and rodents, which can cause significant economic losses to various types of companies. The presence of these insects can lead to damage to machinery and product contamination. Typically, the battle against these organisms relies on synthetic products, but due to associated risks, many key biocides used in the past have been revoked by the EU. Therefore, there is an increasing need for the research of safe, sustainable, and non-toxic methods for pest control. Hence, the Integrated Pest Management (IPM) has been developed, an approach based on the use of eco-friendly methods for pest control in agriculture and industries. Among the most common pests in foodstuffs (such as cereals, pasta, flour, and dried fruits), there are moths. To limit the presence of these insects, various techniques can be employed, including the use of natural antagonists. Two of these antagonists are Habrobracon hebetor and Trichogramma evanescens, which parasitize the larvae and eggs of moths, respectively. In the following study, we ought to evaluate the impact of these parasitoids on the populations of P. interpunctella within a pilot company, Alfrus Ltd., (Udine, IT) and engaged in almond processing. Several challenges arose during the process, which are reported at the end of this treatise, along with other recommendations on how to implement these control strategies more efficiently in the future. Considering the short time interval investigated (2,5 months), the impact of the parasitoids did not yield statistically significant results.
Magazzini e prodotti alimentari possono essere infestati da insetti e altri parassiti come acari e topi, i quali causano notevoli perdite economiche ad aziende di vario tipo. La presenza di questi insetti infatti può causare danni ai macchinari e contaminazione dei prodotti. Di solito, la lotta contro questi organismi si basa sull'utilizzo di prodotti sintetici, ma a causa dei rischi associati, molti importanti biocidi utilizzati in passato sono stati revocati dall’Unione Europea, pertanto, è considerata sempre di più necessaria la ricerca di metodi sicuri, sostenibili e non tossici per il controllo dei parassiti. Si è sviluppato quindi l'Integrated Pest Management (IPM), un approccio basato sull’utilizzo di metodi ecosostenibili per il controllo dei parassiti in agricoltura e nelle industrie. Tra i parassiti più comuni delle derrate alimentari (cereali, pasta, farine, frutta secca) vi sono le tignole. Per limitare la presenza di questi insetti, possono essere adottate diverse tecniche fisiche, chimiche e biologiche, compreso l'utilizzo di antagonisti naturali; due di questi antagonisti sono Habrobracon hebetor e Trichogramma evanescens che parassitizzano rispettivamente larve e uova delle tignole. Nello studio seguente, abbiamo cercato di valutare l'impatto di tali parassitoidi sulle popolazioni di P. interpunctella all’interno di un’azienda pilota, Alfrus srl, sita a Coseano (UD) e adibita alla lavorazione di mandorle. Durante il processo si sono presentate diverse criticità, riportate a fine trattato insieme ad altri consigli su come implementare tali strategie di lotta più efficientemente in futuro. Considerando il breve intervallo di tempo indagato (due mesi e mezzo) l’impatto dei parassitoidi non è risultato statisticamente significativo.
Monitoraggio delle infestazioni di tignole delle derrate (Lepidoptera, Pyralidae) in uno stabilimento alimentare sottoposto a controllo biologico mediante inoculi di antagonisti.
BONADIMAN, ANDREA
2022/2023
Abstract
Warehouses and food products can be infested by insects and other pests such as mites and rodents, which can cause significant economic losses to various types of companies. The presence of these insects can lead to damage to machinery and product contamination. Typically, the battle against these organisms relies on synthetic products, but due to associated risks, many key biocides used in the past have been revoked by the EU. Therefore, there is an increasing need for the research of safe, sustainable, and non-toxic methods for pest control. Hence, the Integrated Pest Management (IPM) has been developed, an approach based on the use of eco-friendly methods for pest control in agriculture and industries. Among the most common pests in foodstuffs (such as cereals, pasta, flour, and dried fruits), there are moths. To limit the presence of these insects, various techniques can be employed, including the use of natural antagonists. Two of these antagonists are Habrobracon hebetor and Trichogramma evanescens, which parasitize the larvae and eggs of moths, respectively. In the following study, we ought to evaluate the impact of these parasitoids on the populations of P. interpunctella within a pilot company, Alfrus Ltd., (Udine, IT) and engaged in almond processing. Several challenges arose during the process, which are reported at the end of this treatise, along with other recommendations on how to implement these control strategies more efficiently in the future. Considering the short time interval investigated (2,5 months), the impact of the parasitoids did not yield statistically significant results.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/53741