Neem (Azadirachta indica) seed kernel extracts and azadirachtin as oviposition deterrents against the melon fly (Bactrocera cucurbitae) and the oriental fruit fly (Bactrocera dorsalis)

Singh, Sahil; Singh, Ravi P.

doi:10.1007/bf02981434

Cited by 45 publications

(19 citation statements)

References 13 publications

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“…In this respect, ethanol, hexane, and acetone extracts of neem seed kernel, which also contain volatile organosulfur compounds, caused a deterrent effect on Helicoverpa armigera (Hü bner) (Lepidoptera: Noctuidae) (Schmutterer 1990), Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), and Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) (Singh and Singh 1998). However, the absence of these compounds in aqueous extracts of neem seed kernel, which also deterred both ßy species and C. maculatus (Jenkins et al 2003), is suggestive of the fact that there may be other compound(s) responsible for oviposition deterrence, possibly a common compound, present in both oil and the deoiled part of the seed (Singh and Singh 1998). We suspect that this effect is caused by azadirachtin.…”

Section: Discussionmentioning

confidence: 99%

Influence of Azadirachtin and Methoxyfenozide on Life Parameters of <I>Spodoptera littoralis</I> (Lepidoptera: Noctuidae)

Pineda

Martínez

Figueroa

et al. 2009

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Effects on adult longevity, fecundity and fertility, as well as long-term effects on progeny were determined through oral exposure of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) adults to azadirachtin and methoxyfenozide. Both compounds reduced adult longevity by 2.3 d at the higher concentrations tested, but no significant differences were observed between sexes. Fecundity and fertility were significantly affected for both insecticides, although this effect was only dose-dependent for azadirachtin. The progeny from adults treated with azadirachtin or methoxyfenozide were only affected in percentage of pupation of eggs that successfully hatched, but no effects were observed in adult emergence of individuals that successfully pupated for either insecticide. In the second part of this study, each sex was exposed separately to methoxyfenozide by topical application or ingestion. Adult fecundity was more affected when moths were treated by ingestion than when treated topically, with a mean number eggs laid per female of 343 +/- 89 and 932 +/- 79, respectively. Finally, azadirachtin applied to pepper plants showed a significant oviposition deterrence activity on S. littoralis adults. However, when fecundity was scored for one additional day in females that had been previously exposed to pepper, Capsicum annum L., plants treated with this insecticide, the number of eggs laid per female did not differ significantly from that of controls. The effects of azadirachtin and methoxyfenozide on S. littoralis suggest changes in population dynamics of this pest in crops treated with these insecticides.

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Section: Discussionmentioning

confidence: 99%

Influence of Azadirachtin and Methoxyfenozide on Life Parameters of <I>Spodoptera littoralis</I> (Lepidoptera: Noctuidae)

Pineda

Martínez

Figueroa

et al. 2009

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“…Female beet armyworm oviposition was reduced on cotton leaves treated with neem-based insecticides compared with the controls in the no-choice, and the two-and five-choice assays. Neem-based insecticides deter oviposition by some other lepidopteran, and some homopteran, coleopteran, and dipteran pests (Saxena, 1989;Schmutterer, 1990Schmutterer, , 1995Butler et al, 1991;Mordue & Blackwell, 1993;Singh & Singh, 1998;Akey & Henneberry, 1999;Showler et al, 2004). Azadirachtin, however, has no deterrent effect on Helicoverpa armigera (Hübner) oviposition (Saxena & Rembold, 1984).…”

Section: Discussionmentioning

confidence: 99%

Effects of neem-based insecticides on beet armyworm (Lepidoptera: Noctuidae)

2005

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Three commercial neem [Azadirachta indica A. Juss (Meliaceae)]‐based insecticides, Agroneem, Ecozin, and Neemix, and a non‐commercial neem leaf powder, were evaluated for oviposition deterrence, antifeedant effect on larvae, and toxicity to eggs and larvae of the beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae), on cotton leaves in the laboratory. Oviposition deterrence in no‐choice, and two‐ and fivechoice assays, was observed for the neem‐based insecticide treatments when compared with a non‐treated control. Neem‐based insecticides also deterred feeding by beet armyworm larvae. Direct contact with neem‐based insecticides decreased the survival of beet armyworm eggs. Survival of beet armyworm larvae fed for 7 days on leaves treated with neembased insecticides was reduced to 27, 33, 60, and 61% for neem leaf powder, Ecozin, Agroneem, and Neemix, respectively. Possibilities for adoption of neem‐based insecticides in commercial cotton for beet armyworm control are discussed.

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“…Several studies have been reported the repellency of several botanical extracts against different Bactrocera flies for example, B. zonata (Saunders), B. oleae (Rossi) (Ilyas, Khan & Qadir, 2017;Rehman et al, 2009aRehman et al, , 2009bSiddiqi et al, 2006), B. cucurbitae, andB. dorsalis (Chen et al, 1996;Singh & Singh, 1998). Capparis deciduas and Zingiber purpurem have shown high oviposition inhibitory against Bruchus chinensis and Bruchids respectively (Bandara et al, 2005;Upadhyay, 2012).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the repellent effect of four botanicals against two Bactrocera species on mangoes

Jaleel

Wang

Lei

et al. 2020

PeerJ

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Background: Bactrocera dorsalis and B. correcta are economically important fruit fly pests of crops, vegetables, fruits, and nuts worldwide, especially in China. Nowadays in China, B. correcta is a second notorious pest of many fruits after B. dorsalis. Different botanicals have been tested against the B. dorsalis but in the case of B. correcta, no records were published. Methodology: This study evaluated the repellency of four botanicals (Seriphidium brevifolium, Piper nigrum, Azadirachta indica and quercetin) in acetone dilutions (5%, 2.5% and 1%) against the B. dorsalis and B. correcta at the laboratory conditions (25 ± 2 C, 60 ± 5% relative humidity, and a photoperiod of L:D 14:10 h). Results: The number of visits after 24-48 h, oviposition punctures, and pupae made by both species were lower on the treated mangoes in comparison to untreated mangoes. S. brevifolium, P. nigrum, A. indica and quercetin have significantly reduced the visits, ovipositional punctures, and pupae of both species. Among botanicals, the P. nigrum was the most effective repellent against B. correcta and as well as B. dorsalis. However, the harmful effects of these botanicals against natural enemies are still unknown. Fraceto LF. 2014. Application of nanotechnology for the encapsulation of botanical insecticides for sustainable agriculture: prospects and promises. Biotechnology Advances 32 (8):1550-1561

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Neem (Azadirachta indica) seed kernel extracts and azadirachtin as oviposition deterrents against the melon fly (Bactrocera cucurbitae) and the oriental fruit fly (Bactrocera dorsalis)

Cited by 45 publications

References 13 publications

Influence of Azadirachtin and Methoxyfenozide on Life Parameters of <I>Spodoptera littoralis</I> (Lepidoptera: Noctuidae)

Influence of Azadirachtin and Methoxyfenozide on Life Parameters of <I>Spodoptera littoralis</I> (Lepidoptera: Noctuidae)

Effects of neem-based insecticides on beet armyworm (Lepidoptera: Noctuidae)

Evaluating the repellent effect of four botanicals against two Bactrocera species on mangoes

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