Use of repellents for honeybees (Apis mellifera L.) in vitro in the yellow passion-fruit (Passiflora edulis Deg) crop and in confined beef cattle feeders

The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants, and synthetic pesticides are among the major factors contributing to their decline. Botanical biopesticides may be a viable alternative to synthetic pesticides in plant defence due to their high selectivity and short environmental persistence. In recent years, scientific progress has been made to improve the development and effectiveness of these products. However, knowledge regarding their adverse effects on the environment and non-target species is still scarce, especially when compared to that of synthetic products. Here, we summarize the studies concerning the toxicity of botanical biopesticides on the different groups of social and solitary bees. We highlight the lethal and sublethal effects of these products on bees, the lack of a uniform protocol to assess the risks of biopesticides on pollinators, and the scarcity of studies on specific groups of bees, such as the large and diverse group of solitary bees. Results show that botanical biopesticides cause lethal effects and a large number of sublethal effects on bees. However, the toxicity is limited when comparing the effects of these compounds with those of synthetic compounds.

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“…In addition, repellent effects on A . mellifera were observed using garlic and citronella extracts [ 104 ].…”

Section: Effects Of Botanical Biopesticides On Eusocial Beesmentioning

confidence: 99%

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

Catania

Lima

Potrich

et al. 2023

Insects

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“…The search for nat-urally occurring honey bee repellents has focused on the repellent activity of essential oils from plants (Suku-mar et al 1991, Mishra 1997. A honey bee repellent composed of tea tree oil, benzaldehyde, and alcohol has been patented (Sackin and Fishman 1998), while the repellent effects of several natural substances in-cluding extracts of Nicotiana tabacum (tobacco), Ruta graveolens (rue), Allium sativum (garlic), Carum pteroselinum (parsley), and Agave Americana (century) plants (Nicodemo and Nogueiracouto 2004) have demonstrated the efficacy of plant extracts as bee repellents. A model has been developed to score the repellency of compounds to honey bees (Ridout et al 2006), and recent reviews substantiate the effectiveness of essential oils and botanical extracts as repellents suitable for use in modern agriculture (Nerio et al 2010, Regnault-Roger et al 2012, Khater 2012.…”

Section: Introductionmentioning

confidence: 99%

Potential Use of an Essential Oil From the Flower of Swertia densifolia as a Repellent for Apis florea (Hymenoptera: Apidae)

Naik¹,

Vaidya-Kannur²,

Deshpande³

et al. 2015

Annals of the Entomological Society of America

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Formulations of compounds repellent to honey bees may be useful tools to keep bees away from areas recently treated with toxic insecticides. Here, we report the activity of a previously unknown honey bee repellent, an essential oil from the flower of Swertia densifolia (Gentianaceae), which has activity toward Indian honey bees Apis florea F. The essential oil was obtained by hydrodistillation and was subjected to a rotating table bioassay with foragers of the honey bee A. florea. Repellency was dose-dependent up to 12 mg/ml and remained constant thereafter. The chemical constitution of the essential oil was examined by gas chromatography-mass spectrometry analyses, which identified 19 constituent compounds. The major constituents (>10% of the oil) were linalool and octadecanoic acid. The constituents of intermediate concentration (5-10%) were a-terpeniol, nerol, n-octadecyl acetate, and spirostan-3-ol. Besides these, five minor constituents (1-5%) and six of the eight trace components present (<1%) have also been identified. The response of A. florea foragers to mixtures of the major and intermediate constituents was studied. Screening of formulations of linalool and a-terpeniol showed repellent properties toward A. florea, behavior which has already been reported by us in earlier studies. The compound n-octadecyl acetate was found to be an attractant, while octadecanoic acid and spirostan-3-ol were neither attractants nor repellents. Nerol, however, elicited dose-dependent effects involving both attraction and repellency. The effects of the constituents of this essential oil were not merely additive, possibly due to synergistic effects. These results establish the previously unknown chemical constitution and dose-dependent repellent nature of the essential oil isolated from flower of S. densifolia toward A. florea and may be used to improve bee management.

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“…A review of efforts to develop repellents is presented by Kasana et al [22]. The repellent effect of natural substances such as extracts of tobacco, rue, garlic, parsley, and century plants showed the efficacy of plant extracts as repellents [23]. The development in the recent past of a model to test the repellent activity of various compounds towards honeybees also indicates the interest of researchers in this field [24].…”

mentioning

confidence: 99%

Essential Oil of Terminalia chebula Fruits as a Repellent for the Indian Honeybee Apis florea

Naik

Puntambekar

Anantpure

2010

Chemistry & Biodiversity

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Plant-based repellent formulations for honeybees play an important role in the bee management. For this purpose, the essential oil of an Indian medicinal plant, Terminalia chebula, commonly known as Myrobalan, was isolated for the first time. Hitherto unknown chemical constituents of the essential oil were determined by GC/MS. The repellent activity of formulations of the essential oil, tested towards the Indian honeybee Apis florea, was found to be dose dependent. The repellency (DeltaR) increased with the concentration of essential oil in the formulations, reaching a maximum for the formulation containing 50 mg/ml of oil. A further increase in the oil concentration was found to reduce the DeltaR. The screening of formulations of the major essential-oil components identified indicated that formulations of furfural, 5-methylfurfural, tetradecanoic acid, palmitic acid, and oleic acid elicited no response in honeybees. In contrast, the formulations of phenylacetaldehyde were repellent, while those of ethyl cinnamate were attractant. These findings might be an asset for beekeepers to improve the bee management. Attractant formulations are effective to attract bees to the desired areas, thus improving the efficiency of pollination. Repellent formulations are used to repel honeybees, especially when toxic insecticides are sprayed on the fields.

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Use of repellents for honeybees (Apis mellifera L.) in vitro in the yellow passion-fruit (Passiflora edulis Deg) crop and in confined beef cattle feeders

Cited by 11 publications

References 7 publications

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

Potential Use of an Essential Oil From the Flower of Swertia densifolia as a Repellent for Apis florea (Hymenoptera: Apidae)

Essential Oil of Terminalia chebula Fruits as a Repellent for the Indian Honeybee Apis florea

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