Limiting onion fly (Delia antiqua) and onion thrips (Thrips tabaci) damage to onions by combined use of environmentally acceptable control methods : fact or fantasy?

Bohinc, Tanja (avtor), Trdan, Stanislav (avtor)

In a two-year study (2023–2024), field experiments were conducted at a location where onion fly (Delia antiqua [Meigen]) and onion thrips (Thrips tabaci Lindeman) are permanent pests. The objective of the study was to investigate independent and combined application (synergistic effect) of environmentally acceptable methods (biological and biotechnical control methods) of controlling these pests on onions. Seven treatments were tested, including a positive control (chemical control) and a negative control (untreated plots), as well as various combinations of environmentally friendly approaches, such as entomopathogenic fungi and nematodes, white clover intercropping, and colored sticky boards with lures. The onion fly caused greater damage and subsequent bulb loss than the onion thrips in both years, despite white clover (as independent application) as an intercrop, and the combined application of white clover and entomopathogens proved to be most effective against thrips and fly damage, ultimately resulting in a suboptimal onion yield of less than 7 tons per hectare annually. It is evident that environmentally acceptable control methods were experiencing challenges in either reducing the extent of damage caused by both pests or increasing the yield of healthy bulbs. It is unfortunate that, despite observing an increased yield of healthy bulbs in certain treatments, a significant quantity of bulbs was also lost due to onion fly.

• Jezik: Angleški jezik
• Ključne besede: synergism, biological control, chemical control, entomopathogens, sticky boards, white clover
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 20 str.
• Številčenje: Vol. 16, iss. 11, art. 1097
• PID: 20.500.12556/RUL-175537
• UDK: 632
• ISSN pri članku: 2075-4450
• DOI: 10.3390/insects16111097
• COBISS.SI-ID: 255609347
• Datum objave v RUL: 03.11.2025

Gradivo je del revije

• Naslov: Insects
• Založnik: MDPI
• ISSN: 2075-4450
• COBISS.SI-ID: 519122457

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: biotično varstvo, sinergizem, škodljivci rastlin, kemično varstvo, entomopatogeni, lepljive plošče, bela detelja