Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa
Само за регистроване кориснике
2023
Аутори
Drobnjaković, TanjaPrijović, Mirjana
Ricupero, Michele
Siscaro, Gaetano
Zappala, Lucia
Biondi, Antonio
Marčić, Dejan
Остала ауторства
Rapisarda, CarmeloDreux, Laure
Gobin, Bruno
Messelink, Gerben
Конференцијски прилог (Објављена верзија)
,
IOBC-WPRS
Метаподаци
Приказ свих података о документуАпстракт
The assessment of chemical toxicity towards target and non-target organisms is
required when Integrated Pest Management programs are adopted. Spinetoram, a semi-
synthetic analogue of the microbial-derived bioinsecticide spinosad, is widely used to control
insect pest populations in agricultural crops. However, spinetoram toxicity towards the
greenhouse whitefly Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) and its
successful biological control agent, the parasitoid Encarsia formosa Gahan (Hymenoptera:
Aphelinidae), has been scarcely documented. We assessed the acute toxicity of spinetoram
insecticide (25 % a.i.) to adults and nymphs of the whitefly, as well as to adult and pupal stage
of the parasitoid in laboratory conditions. In all dose-response bioassays a Potter spray tower
was used to apply the insecticide to tobacco leaves settled onto 1 % agar layer in ventilated
Petri dishes. Adults of both pest and parasitoid were exposed for 48 h to dry residues, whi...le
whitefly nymphs and parasitoid pupae were directly sprayed with a series of spinetoram
concentrations, covering a range of 10-90 % mortality. The following median Lethal
Concentrations (LC50s) were estimated: 4.593 and 15.027 mg a.i./l for whitefly adults and
nymphs, respectively, and 0.686 and 1.715 mg a.i./l for parasitoid adults and pupae,
respectively. The calculated selectivity ratio (LC50 parasitoid/ LC50 whitefly) indicated the non-
selective nature of spinetoram towards both tested stages of the parasitoid. However, a more
comprehensive risk-assessment for E. formosa involved in the integrated use of spinetoram
insecticide within whitefly management requires further evaluation of the sublethal effects and
greenhouse trials, aiming to highlight population-level responses.
Кључне речи:
Trialeurodes vaporariorum / Encarsia formosa / spinetoram / IPM / selectivity ratioИзвор:
IOBC-WPRS Bulletin, 2023, 167, 219-220Издавач:
- Braganca : International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palearctic Regional Section (IOBC-WPRS)
Напомена:
- Working Group “Integrated Control of Protected Crops, Temperate and Mediterranean Climate” Preceedings of the Joint Meeting at Brest (France), 27-31 August, 2023
Институција
Institut za pesticide i zaštitu životne sredineTY - CONF AU - Drobnjaković, Tanja AU - Prijović, Mirjana AU - Ricupero, Michele AU - Siscaro, Gaetano AU - Zappala, Lucia AU - Biondi, Antonio AU - Marčić, Dejan PY - 2023 UR - https://ripest.pesting.org.rs/handle/123456789/628 AB - The assessment of chemical toxicity towards target and non-target organisms is required when Integrated Pest Management programs are adopted. Spinetoram, a semi- synthetic analogue of the microbial-derived bioinsecticide spinosad, is widely used to control insect pest populations in agricultural crops. However, spinetoram toxicity towards the greenhouse whitefly Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) and its successful biological control agent, the parasitoid Encarsia formosa Gahan (Hymenoptera: Aphelinidae), has been scarcely documented. We assessed the acute toxicity of spinetoram insecticide (25 % a.i.) to adults and nymphs of the whitefly, as well as to adult and pupal stage of the parasitoid in laboratory conditions. In all dose-response bioassays a Potter spray tower was used to apply the insecticide to tobacco leaves settled onto 1 % agar layer in ventilated Petri dishes. Adults of both pest and parasitoid were exposed for 48 h to dry residues, while whitefly nymphs and parasitoid pupae were directly sprayed with a series of spinetoram concentrations, covering a range of 10-90 % mortality. The following median Lethal Concentrations (LC50s) were estimated: 4.593 and 15.027 mg a.i./l for whitefly adults and nymphs, respectively, and 0.686 and 1.715 mg a.i./l for parasitoid adults and pupae, respectively. The calculated selectivity ratio (LC50 parasitoid/ LC50 whitefly) indicated the non- selective nature of spinetoram towards both tested stages of the parasitoid. However, a more comprehensive risk-assessment for E. formosa involved in the integrated use of spinetoram insecticide within whitefly management requires further evaluation of the sublethal effects and greenhouse trials, aiming to highlight population-level responses. PB - Braganca : International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palearctic Regional Section (IOBC-WPRS) C3 - IOBC-WPRS Bulletin T1 - Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa EP - 220 SP - 219 VL - 167 ER -
@conference{ author = "Drobnjaković, Tanja and Prijović, Mirjana and Ricupero, Michele and Siscaro, Gaetano and Zappala, Lucia and Biondi, Antonio and Marčić, Dejan", year = "2023", abstract = "The assessment of chemical toxicity towards target and non-target organisms is required when Integrated Pest Management programs are adopted. Spinetoram, a semi- synthetic analogue of the microbial-derived bioinsecticide spinosad, is widely used to control insect pest populations in agricultural crops. However, spinetoram toxicity towards the greenhouse whitefly Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) and its successful biological control agent, the parasitoid Encarsia formosa Gahan (Hymenoptera: Aphelinidae), has been scarcely documented. We assessed the acute toxicity of spinetoram insecticide (25 % a.i.) to adults and nymphs of the whitefly, as well as to adult and pupal stage of the parasitoid in laboratory conditions. In all dose-response bioassays a Potter spray tower was used to apply the insecticide to tobacco leaves settled onto 1 % agar layer in ventilated Petri dishes. Adults of both pest and parasitoid were exposed for 48 h to dry residues, while whitefly nymphs and parasitoid pupae were directly sprayed with a series of spinetoram concentrations, covering a range of 10-90 % mortality. The following median Lethal Concentrations (LC50s) were estimated: 4.593 and 15.027 mg a.i./l for whitefly adults and nymphs, respectively, and 0.686 and 1.715 mg a.i./l for parasitoid adults and pupae, respectively. The calculated selectivity ratio (LC50 parasitoid/ LC50 whitefly) indicated the non- selective nature of spinetoram towards both tested stages of the parasitoid. However, a more comprehensive risk-assessment for E. formosa involved in the integrated use of spinetoram insecticide within whitefly management requires further evaluation of the sublethal effects and greenhouse trials, aiming to highlight population-level responses.", publisher = "Braganca : International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palearctic Regional Section (IOBC-WPRS)", journal = "IOBC-WPRS Bulletin", title = "Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa", pages = "220-219", volume = "167" }
Drobnjaković, T., Prijović, M., Ricupero, M., Siscaro, G., Zappala, L., Biondi, A.,& Marčić, D.. (2023). Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa. in IOBC-WPRS Bulletin Braganca : International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palearctic Regional Section (IOBC-WPRS)., 167, 219-220.
Drobnjaković T, Prijović M, Ricupero M, Siscaro G, Zappala L, Biondi A, Marčić D. Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa. in IOBC-WPRS Bulletin. 2023;167:219-220..
Drobnjaković, Tanja, Prijović, Mirjana, Ricupero, Michele, Siscaro, Gaetano, Zappala, Lucia, Biondi, Antonio, Marčić, Dejan, "Comparative toxicity of spinetoram to the greenhouse whitefly and its parasitoid Encarsia formosa" in IOBC-WPRS Bulletin, 167 (2023):219-220.