Potential of Botanical Extracts in the Control of Kale Aphids (Brevicoryne brassicaea) and Their Effect on the Parasitic Wasp (Aphidius ervi)

Peris, Nderitu Wangari; Kiptoo, Judith Jeruto

doi:10.9734/arja/2017/29849

Cited by 9 publications

(5 citation statements)

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“…Different plant products were tested by many scholars and found promising against aphids, such as orange peel (Citrus sinensis), bitter gourd (Momordica dioica), garlic (Allium vineale), marigold, hot pepper (Capsicum frutescens) and tobacco (Nicotiana tabacum) to wheat aphid (Iqbal, 2011); garlic bulbs (Allium sativum), endod (Phytolacca dodecandra) and neem seeds (Azadirachta indica) to pea aphids, Acyrthosiphon pisum (Harris) (Megersa, 2016). Mexican marigold, garlic, sodom apples and ginger were also effective against the aphids Brevicoryne brassicaea (Peris and Kiptoo, 2017); neem and moringa (Moringa olifera) to wheat aphid species, Schizaphis graminum (R.), Rhopalosiphum padi (L.) and Sitobion avenae (F.) (Shah et al, 2017).…”

Section: Probit Analysis Of Oils Against a Craccivoramentioning

confidence: 99%

Potency of Three Botanical Oils Against the Aphis Craccivora Koch (Homoptera: Aphididae) Nymphs Under Laboratory Conditions

et al. 2021

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Botanicals are promising and attractive alternatives for pest management. In the present study, three botanical oils namely neem (Azadirachta indica), karanja (Pongamia pinnata) and mehogony (Swietenia mahagoni) were tested against the nymphs of Aphis craccivora Koch to evaluate the toxic and repellent effects under laboratory conditions (25 ± 5oC, 65-75% RH). Four concentrations (0.5, 1.0, 1.5, and 2.0%) along with control were maintained with distilled water and tween-20 was used as emulsifier. Leaf dipped method were used for insect bioassay. Insect mortality was recorded at 24, 48 and 72 hours after intervals while repellency was carried out at 2 hours after intervals upto 10th hours and the collected data were analyzed through MSTAT-C program. Results indicated that all the tested oils had toxic and repellent effects against the A. craccivora nymphs. Among the tested botanical oils, no significant difference was observed in terms of mortality over treatment time. But significant difference was noticed over level of concentrations exerted by the botanical oils. The average highest mortality (28.62%) was recorded by the application of mehogony oil whereas neem oil showed the lowest mortality (27.21%) against the A. craccivora and the mortality was directly proportional to the level of concentrations and hour after treatment (HAT). Probit analysis showed the lowest LD50 values of mehogony oil which revealed the highest toxic effect against the nymph of bean aphid. The highest repellent effect (77.33%) was found in mehogony oil (repellent class IV) among all the botanical oils applied. On the contrary, neem (57.33%) and karanja (55.00%) oils belonged to the same repellent class that is repellent class II. Although all the tested botanical oils evaluated showed toxic and repellent effects but mehogony oil performed as the best potent oil against the nymphs. We therefore suggested using the mehogony oil for the management of bean aphid. SAARC J. Agric., 19(1): 139-154 (2021)

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Section: Probit Analysis Of Oils Against a Craccivoramentioning

confidence: 99%

Potency of Three Botanical Oils Against the Aphis Craccivora Koch (Homoptera: Aphididae) Nymphs Under Laboratory Conditions

et al. 2021

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“…The chemical constitutes of Euphorbia species exhibited many activities as antibacterial, anti-inflammation, and antioxidant (Reda et al 2017). Peris and Kiptoo (2017) and Alghamdi (2018) stated that the botanical pesticides can be used in control of aphids, as they are environmentally safe, having low toxicity to mammals, fish, and pollinators.…”

Section: Discussionmentioning

confidence: 99%

“…Because aphids have become resistant to most of the conventional chemical insecticides, frequent insecticide applications have become needed for its control (Zhu et al 2016). The use of botanical extracts for the control of aphids can be a possible alternative as safe, locally available and less expensive materials for pest control (Farag and Ismail 1999;Megersa 2016; Peris andKiptoo 2017 andDehariya et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Laboratory and field evaluation of certain wild plant extracts against Aphis fabae Scop. (Homoptera: Aphididae) and its predators

et al. 2019

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Background: Broad bean (Vicia faba L.) is considered one of the most essential food crops in Egypt. Aphis fabae Scop. (Homoptera: Aphididae) causes a considerable damage to bean plants as well as to other leguminous crops. The present study dealt with laboratory and field trials to evaluate the effectiveness of some plant extracts against A. fabae and two predatory species. Results: The effectiveness of six plant extracts viz Ballota undulata (BU), Teucrium polium (TP), Phlomis aurea (PA) (Lamiaceae) , Pulicaria incisa (PI), Seriphidium herba-alba (SHA) (Asteraceae), and Euphorbia saint catherine (ESC) (Euphorbiaceae) against the bean aphid (A. fabae) and on the two predators, Chrysoperla carnea (Steph.) and Coccinella undecimpunctata L., was determined in both laboratory and field. Results showed that BU, TP, and SHA were the most toxic extracts to aphids, followed by PA and PI, while the ESC was the least toxic one. The lethal effects, expressed as percent mortalities, were 74.3, 73.2, 72.7, 65.9, 62.5, and 56.8%, respectively. All mortality rates were significantly different than the control. Regarding the effect on the predators, insignificant differences were observed between the tested extracts and the control. In the field, the tested plant extracts were efficient for controlling the aphid without a harmful effect on the predators. The extracts had a various positive effect on crop yield; it was increased. Conclusion: The six tested plant extracts, evaluated against A. fabae, and two predatory species showed efficiency in aphid control and safety to the predators in the field.

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“…Kale (Brassica oleracea L. var. acephala) is a leafy vegetable of global importance, primarily cultivated by small-scale farmers for both subsistence and income generation, particularly in tropical and subtropical regions (Mutiga et al 2011; Peris and Kiptoo, 2017;Šamec et al 2019). According to the Center for Disease Control (CDC), B. oleracea var.…”

Section: Introductionmentioning

confidence: 99%

Electrophysiological and Behavioral Responses of Cabbage Aphid (Brevicoryne brassicae) to Rosemary (Rosmarinus officinalis) Volatiles, a Potential push Plant for Vegetable push-pull Cropping System

Mutua,

Dubois,

Akutse

et al. 2024

J Chem Ecol

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The cabbage aphid (Brevicoryne brassicae) is a major pest of kale (Brassica oleraceae var. acephala), an important vegetable that is grown worldwide due to its high nutritional and economic value. Brevicoryne brassicae poses a great challenge to B. oleraceae var. acephala production, causing signi cant direct and indirect yield losses. Farmers overly rely on synthetic insecticides to manage the pest with limited success owing to its high reproductive behavior and development of resistance. This necessitates search for sustainable alternatives to mitigate these challenges. This study assessed behavioral responses of B. brassicae to odors from rosemary (Rosmarinus o cinalis) and B. oleraceae var. acephala headspace volatiles in a Perspex four-arm olfactometer. We identi ed and quanti ed volatiles emitted by each of the two plants and those eliciting behavioral response using coupled gas chromatography-mass spectrometry (GC-MS) and gas chromatography-electroantennogram (GC-EAG), respectively. Our ndings revealed that B. brassicae spent more time in the arms of the olfactometer that contained B. oleraceae var. acephala volatiles compared to the arm that held R. o cinalis volatiles. GC-MS analysis revealed diverse and higher quantities of volatile compounds in R. o cinalis compared to B. oleraceae var. acephala. GC-EAG showed that B. brassicae was responsive to linalool, camphor, borneol, α-terpineol, verbenone, geraniol and bornyl acetate from R. o cinalis and sabinene, γ-terpinene, and β-caryophyllene from B. oleraceae var. acephala. Our ndings demonstrate that R. o cinalis is repellent against B. brassicae and could be utilized as a 'push' plant in an intercropping strategy against this pest.

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Potential of Botanical Extracts in the Control of Kale Aphids (Brevicoryne brassicaea) and Their Effect on the Parasitic Wasp (Aphidius ervi)

Cited by 9 publications

References 0 publications

Potency of Three Botanical Oils Against the Aphis Craccivora Koch (Homoptera: Aphididae) Nymphs Under Laboratory Conditions

Potency of Three Botanical Oils Against the Aphis Craccivora Koch (Homoptera: Aphididae) Nymphs Under Laboratory Conditions

Laboratory and field evaluation of certain wild plant extracts against Aphis fabae Scop. (Homoptera: Aphididae) and its predators

Electrophysiological and Behavioral Responses of Cabbage Aphid (Brevicoryne brassicae) to Rosemary (Rosmarinus officinalis) Volatiles, a Potential push Plant for Vegetable push-pull Cropping System

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