Biological Effects of Neem (Azadirachta indica) Seed Oil on an Egg Parasitoid, Trichogramma chilonis

Raguraman, S.; Singh, Ravi P.

doi:10.1093/jee/92.6.1274

Cited by 63 publications

(42 citation statements)

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“…The females of Spodoptera litura (F.) (Lepidoptera: Noctuidae) feeding on the artificial diets showed a stronger response to azadirachtin, with large differences between the controls and treated diet compared to the males (Huang et al, 2004). The females of the parasitoids Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) were affected by the neem seed oil but the males were unaffected in the contact toxicity tests (Raguraman and Singh, 1999). The feeding of the adults (males and females) and larvae of M. punctigera was significantly reduced in the neem oil treated leaves of the wild radish in the multiple-choice assay (Table 2).…”

Section: Multiple-choice Assaysmentioning

confidence: 99%

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Mikami

Ventura

2008

Braz. arch. biol. technol.

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Section: Multiple-choice Assaysmentioning

confidence: 99%

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Mikami

Ventura

2008

Braz. arch. biol. technol.

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“…In the field and in more complex laboratory situations, however, such results are more difficult to demonstrate. It would appear that there is a fine line between the level of azadirachtin required to affect the pest and the level which will not affect the parasitoid or predator (Belmain et al 2000, Perera et al 2000, Raguraman & Singh 2000, Simmonds et al 2000. Such integrated approaches to pest control however are an encouraging way forward for the use of neem pesticides.…”

Section: Neem An Azadirachtin In Insect Controlmentioning

confidence: 99%

Azadirachtin from the neem tree Azadirachta indica: its action against insects

Mordue

Nisbet

2000

An. Soc. Entomol. Bras.

363

123

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Azadiractina do Nim, Azadirachta indica: sua Ação Contra Insetos RESUMO -A árvore do nim há muito tempo é reconhecida por suas propriedades singulares de ação contra insetos e benefício à saúde humana. É plantada na maior parte das áreas tropicais e subtropicais do mundo para sombra, reflorestamento e produção de matéria prima para inseticidas naturais e medicamentos. A azadiractina, complexo tetranortriterpenóide limonóide das sementes é o principal composto responsável pelos efeitos tóxicos aos insetos. Seis conferências internacionais sobre nim e vasta literatura científica relatam esses aspectos. Este artigo revê as propriedades da azadiractina no comportamento e na fisiologia de insetos, incluindo os efeitos na reprodução, redução da alimentação tanto direto quanto a chamada "secundária", redução do crescimento, aumento da mortalidade e ocorrência de ecdises anormais e tardias. Os efeitos fisiológicos são aqui categorizados de duas maneiras: efeitos diretos sobre as células e os tecidos e efeitos indiretos exercidos via o sistema endócrino. O artigo também descreve o trabalho feito até o momento visando identificar o modo de açao da azadiractina em nível celular e seus efeitos diferentes entre filos animais e sobre organismos não nocivos, o que indica seu sucesso potencial como inseticida seguro. PALAVRAS-CHAVE: Insecta, inseticida botânico, fisiologia de insetos.ABSTRACT -The neem tree has long been recognized for its unique properties both against insects and in improving human health. It is grown in most tropical and sub-tropical areas of the world for shade, reforestation and for the production of row material for natural insecticides and medicines. Azadirachtin, a complex tetranortriterpenoid limonoid from the neem seeds, is the main component responsible for the toxic effects in insects. Six international conferences on neem and a vast scientific literature report both the antifeedant and physiological effects of neem. This article reviews the behavioral and physiological properties of azadirachtin, including effects on insect reproduction, direct and "secondary" antifeedancy, and the physiological effects measured as growth reduction, increased mortality and abnormal and delayed moults. These effects are here categorized in two ways: direct effects on cells and tissues and indirect effects exerted via the endocrine system. It also describes the work carried out to date to identify the mode of action of azadirachtin at the cellular level. The differential effects between animal phyla and over non-target organisms are discussed and point to its potential success as a safe insecticide.

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“…Akunne et al [40]; reported that A indica when mixed separately with stored cowpea seeds as pest control agents caused the mortality of adult C. maculatus compared to the control (4.00 ± 1.41; 2.67 ± 1.41; 1.89 ± 1.17). Raguraman and Singh [41]; Musa et al [42] and Moses and Dorathy, [43] also carried out study on A. indica and reported that A indica is a potential botanical pesticides.…”

Section: Discussionmentioning

confidence: 99%

“…Raguraman and Singh [41] reported that neem tree has long been recognized for its pesticidal properties against insect pests. Moses and Dorathy [43] reported that bitter leaf gave the best protection against cowpea weevil when compared with garlic and ginger.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of Azadirachta indica Leaf Powder and Ethanol Extract on Adult Periplanata americana under Laboratory Condition

Rosemary¹,

Nestor²,

Abalis³

2018

OALib

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The efficacy of Azadirachta indica leaf powder and ethanol extract on adult Periplanata americana under laboratory condition to control the nuisance of the pest. The mean mortality count of adult Periplanata americana was the highest (92) in 50 g leaf powder and the lowest (2) in the control. The result also showed that the highest mortality (125) was recorded in 96 hr exposure time while the lowest (28) was recorded in 24 h exposure time. The Analysis of Variance (ANOVA) for the mean mortality in the experiment and the control indicated that there was significant difference (P-value = 0.05) in the mortality with increase in grams and exposure time of leaf powder and the control at 5% level of significance the mean mortality count of adult P. americana was the highest (108) in 50 ml ethanoic extract and the lowest (3) in the control. The result also showed that the highest mortality (144) was recorded in 96 hr exposure time while the lowest (66) was recorded in 24 h exposure time. The Analysis of Variance (ANOVA) for the mean mortality in the experiment and the control indicates that there is significant difference (P-value = 0.05) in the mortality with increase in grams and exposure time of leaf powder and the control at 5% level of significance. The efficacy of Azadirachta indica Ethanol extract is more than the leaf powder. There was significant difference in mortality in both increase in concentration levels and exposure time at 5% level of significance in both leaf powder and ethanol extract.

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Biological Effects of Neem (Azadirachta indica) Seed Oil on an Egg Parasitoid, Trichogramma chilonis

Cited by 63 publications

References 0 publications

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Azadirachtin from the neem tree Azadirachta indica: its action against insects

Efficacy of Azadirachta indica Leaf Powder and Ethanol Extract on Adult Periplanata americana under Laboratory Condition

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