Development of new ecological long-lasting dispensers of semiochemicals for the control of Bactrocera oleae
 (Rossi)

Gil‐Ortiz, Ricardo

doi:10.1002/ps.3415

Cited by 4 publications

(2 citation statements)

References 43 publications

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“…Research for biological control alternatives against this pest is based essentially on mass trapping methods and the use of natural product-based pesticides such as the Bacillus thuringiensis (Bt), spinosad that offer a more sustainable solution to pest control than synthetic alternatives (Lambert and Peferoen, 1992 [5]; Federici and Sakano, 2006 [6]; Sameh et al, 2009 [7]). Strategies involving semiochemical-based products have been pursued in the development of integrated pest management strategies for B. oleae (Mazomenos and Haniotakis, 1981 [8]; Gil-Ortiz, 2012 [9]; Canale et al, 2014 [10]). However, still heavy B. oleae infestations were recorded in case of enormous populations so that further applications are required for efficient control (Saour, 2004) [11].…”

Section: Introductionmentioning

confidence: 99%

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest Bactrocera oleae (Diptera: Tephritidae) in Tunisia

Blibech¹,

Ksantini²,

Shete³

2020

ACES

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Bactrocera oleae is the most economically damaging insect of olive in the Mediterranean. As a reliable alternative to synthetic chemical insecticides, botanical pesticides from plant extracts are also considered natural control methods safe for the environment and human health. In practical applications up to date, studies demonstrating toxically effects of biological control agents on the insect have been carried out in organic farming systems based on some industrial microbial formulations. But much less attention has been given to botanical insecticides against B. oleae. Thus, a certified botanical insecticide issue from various plants and approved per Indian and International organic standards was tested against larvae and pupae of the olive pest Bactrocera oleae in the east of Tunisia under laboratory conditions. The experiments were conducted with 3 normal treatments and 1 control. Two techniques were used for larvae and pupae: direct contact using concentration from 0.5; 0.750; 1 and 1.5 mg/l and fumigation treatment using 2 mg/l conducted in rectangular boxes (25˚C-27˚C, 75%-85% RH and 14:10 LD photo period). For larval stages, LC50 and LC90 values for Ultra-Act were 0.45 and 1.22 mg/L in direct contact and 1.5-2 mg/l with fumigation, respectively. For pupal stage, the ID25 and ID50 values were estimated to be 0.71 mg and 1.26 mg respectively corresponding to the inhibition of emergence of 25% and 50% of B. oleae adults from pupa. Our results indicate that sprayed Ultra-Act product has the potential to control the three olive fly instar larvae. Pupal emergency was decreased significantly with fumigation treatment. In conclusion, Ultra-Act is a promising botanical insecticide against B. oleae that could How to cite this paper: Blibech, I., Ksantini, M. and Shete, M. (2020) Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT ® against the Olive Pest Bactrocera oleae (Diptera: Tephritidae) in Tunisia. Advances in Chemical Engineering and Science, 10, 69-80.

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Section: Introductionmentioning

confidence: 99%

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest Bactrocera oleae (Diptera: Tephritidae) in Tunisia

Blibech¹,

Ksantini²,

Shete³

2020

ACES

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“…CR formulation have numerous benefits, including protection of active ingredients from environmental degradation, manipulation of bioavailability and persistence, reduction of toxicity and operator hazards, reduction of phytotoxicity to seeds and crops, reduced agent application rates, and less labor requirement. 19–21 …”

Section: Introductionmentioning

confidence: 99%

Development and evaluation of pymetrozine controlled-release formulation to control paddy planthopper

Zhang

Wei

et al. 2018

RSC Adv.

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Continuous outbreaks of rice planthoppers in rice-growing regions in China indicates the importance of redesigning several planthopper management programs. Chemical control remains the main strategy for planthopper control in China and other subtropical and temperate regions. Most common chemical insecticides are emulsifiable concentrates, suspension concentrates, soluble concentrates, and wettable powders. These insecticides are applied by dusting or spraying using simple equipment. The active ingredient, with short effectiveness time, is degraded rapidly in natural paddy ecosystems. Thus, repeated pesticide applications are required to control rice planthoppers. Altering the short-term effect formulation of pesticides to a long-acting formulation may be an alternative solution. A pymetrozine controlled-release granule (CRG; 1%) was developed by loading the pesticide on bentonite and coating the solid pesticide with resin. Analysis of pymetrozine release indicated that the 1% pymetrozine CRG release was more than 80% for 60 days. In the field trial screening, the 1% pymetrozine CRG showed a controlled effect of 61.96-78.87% at 48 days after CGR application. Application of 1% pymetrozine CRG at the recommended dosage and 1.5 times the recommended dosage resulted in terminal residues on brown rice below the maximum residue limit (0.1 mg kg À1 ) of China and Japan. Moreover, the pesticide granules showed low toxicity against all tested beneficial organisms in the environment.Pymetrozine CRG (1%) showed good controlled release and efficacy for controlling paddy planthoppers.The compound exhibited a low terminal residue and low toxicity against all tested beneficial organisms.Pymetrozine CRG (1%) showed great potential for field applications to control paddy planthoppers, because it overcame the rapid loss of biological function during treatment.

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Olive fruit volatiles route intraspecific interactions and chemotaxis in Bactrocera oleae (Rossi) (Diptera: Tephritidae) females

Giunti¹,

Campolo²,

Laudani³

et al. 2020

Sci Rep

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Plant nutritional quality and chemical characteristics may affect the fitness of phytophagous insects.Here, the olfactory preferences of Bactrocera oleae (Rossi) females toward olives with different maturation and infestation status were evaluated in three cultivars: Ottobratica, Roggianella and Sinopolese. Volatile profiles from olives were identified by SPME/GC-MS. Choice tests were performed to determine the responses of B. oleae adult females toward fruits and pure chemicals linked to infestation degree. Cultivar was the main source of variability explaining the differences recorded in volatile emissions. Moreover, three VOCs [β-myrcene, limonene and (E)-β-ocimene] were associated to infestation status across all olive varieties. In choice-tests, B. oleae females always preferred the olfactory cues from low-infested over high-infested fruits. Therefore, choice-tests using synthetic VOCs, emitted in greater amount by high-infested fruit, were arranged in order to identify putative B. oleae kairomones. While females were indifferent to β-myrcene, the highest dosages of limonene and (E)β-ocimene were unfavoured by the tested flies, which preferentially moved toward the empty arm of the Y-tube. Furthermore, females preferred the lowest concentration of β-ocimene compared to the highest one. These results supported our hypothesis that fruit VOCs may serve as kairomones for female flies.Environmental conditions, food availability and ovipositional sites are crucial for phytophagous-insect survival 1,2 . The nutritional quality and the attractiveness of plants may influence the fitness of herbivores and be a key factor for oligophagous species, which can rely on a restricted number of host-plants 3,4 . Therefore, the recognition of suitable ovipositional sites is critical for several fruit flies 5,6 .Bactrocera oleae (Rossi) (Diptera: Tephritidae), commonly known as the olive fruit fly, is a strictly monophagous pest, which can feed exclusively on Olea species. The larval stages feed and develop solely inside olive drupes, excavating galleries inside the pulp. The fully developed larvae open an exit hole on the olive surface and usually pupate outside the fruit. During the oviposition process, B. oleae females carefully choose suitable fruit for oviposition, either performing aggressive behaviours toward conspecifics to gain and maintain the oviposition site 7 . In the Mediterranean area, the olive fruit fly population commonly increases during summer season until the harvest period. Depending on climate conditions, B. oleae produce from 2 to 7 generations during the favourable season, although this fly can reproduce also during winter in mild climates 8 . The olive fruit fly is considered the key pest of olive crop (Olea europea L.), causing great qualitative and quantitative yield loses, as well as premature fruit drop. The presence of ovipositional puncture and/or active infestation can decrease or even nullify the value of table olives and seriously reduce oil yield and quality 9,10 . Furthermore, the olive frui...

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Development of new ecological long-lasting dispensers of semiochemicals for the control of Bactrocera oleae (Rossi)

Abstract: Although no significant differences in captures were found between the dispensers tested, the highest number of captures was obtained on average with the mesoporous dispensers demonstrating good pheromone emission characteristics.

Cited by 4 publications

References 43 publications

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest <i>Bactrocera oleae</i> (Diptera: Tephritidae) in Tunisia

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest <i>Bactrocera oleae</i> (Diptera: Tephritidae) in Tunisia

Development and evaluation of pymetrozine controlled-release formulation to control paddy planthopper

Olive fruit volatiles route intraspecific interactions and chemotaxis in Bactrocera oleae (Rossi) (Diptera: Tephritidae) females

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Development of new ecological long-lasting dispensers of semiochemicals for the control of Bactrocera oleae (Rossi)

Abstract: Although no significant differences in captures were found between the dispensers tested, the highest number of captures was obtained on average with the mesoporous dispensers demonstrating good pheromone emission characteristics.

Cited by 4 publications

References 43 publications

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&amp;#174 against the Olive Pest &lt;i&gt;Bactrocera oleae&lt;/i&gt; (Diptera: Tephritidae) in Tunisia

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&amp;#174 against the Olive Pest &lt;i&gt;Bactrocera oleae&lt;/i&gt; (Diptera: Tephritidae) in Tunisia

Development and evaluation of pymetrozine controlled-release formulation to control paddy planthopper

Olive fruit volatiles route intraspecific interactions and chemotaxis in Bactrocera oleae (Rossi) (Diptera: Tephritidae) females

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Product

Resources

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Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest <i>Bactrocera oleae</i> (Diptera: Tephritidae) in Tunisia

Insecticidal Activity of an Indian Botanical Insecticide ULTRA ACT&#174 against the Olive Pest <i>Bactrocera oleae</i> (Diptera: Tephritidae) in Tunisia