Toxicity of Leaf Extracts of<i>Ageratum conyzoides</i>to Lepidoptera Pests of Horticultural Crops

Moreira, Márcio Dionízio; Picanço, Marcelo Coutinho; Barbosa, Luiz Cláudio de Almeida; Guedes, Raul Narciso C.; Silva, Ézio Marques da

doi:10.1080/01448765.2004.9755288

Cited by 20 publications

(19 citation statements)

References 12 publications

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“…However, mass trapping would likely be most effective when used in conjunction with recommended insecticides. Other pest control approaches have been studied and documented, notably the potential use of biological control agents (predators, parasitoids and entomopathogens which are described in ''Biological control of T. absoluta in South America'' section), resistant plants (de Resende et al 2006;Pereira et al 2008;Campos et al 2009;Oliveira et al 2009;Maluf et al 2010) and botanical insecticides (Moreira et al 2004;da Cunha et al 2005da Cunha et al , 2006GoncalvesGervasio and Vendramim 2007;da Cunha et al 2008). However, despite increasing interest in such control approach options (notably because smaller populations of T. absoluta are usually observed in organic vs. conventional systems, Medeiros 2007;Medeiros et al 2009b) they are only scarcely used.…”

Section: Current Management Methods In South Americamentioning

confidence: 99%

Biological invasion of European tomato crops by Tuta absoluta: ecology, geographic expansion and prospects for biological control

et al. 2010

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The tomato leafminer Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a devastating pest of tomato originating from South America. After its initial detection in eastern Spain in 2006, it rapidly invaded various other European countries and spread throughout the Mediterranean basin. If no control measures are taken, then the pest can cause up to 80-100% yield losses in tomato crops in recently invaded areas and may pose a threat to both greenhouse and open-field tomato production. The exceptional speed and extent of T. absoluta invasion have called for studies documenting its biology and ecology, while indicating an urgent need for efficient and sustainable management methods. The development of approaches to manage T. absoluta would be facilitated through a detailed revision of information on this pest in its area of origin. This review combines information on the invasion by T. absoluta, its ecology, and potential management strategies, including data that may help the implementation of efficient biological control programs. These programs, together with a variety of other management tactics, may allow efficient integrated pest management of T. absoluta in Europe and Mediterranean Basin countries.

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Section: Current Management Methods In South Americamentioning

confidence: 99%

Biological invasion of European tomato crops by Tuta absoluta: ecology, geographic expansion and prospects for biological control

et al. 2010

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“…Natural product-based pesticides can sometimes be specific to the target species and have unique modes of action (Duke et al, 2003). Plant products have several uses in insect control (Trindade et al, 2000;Moreira et al, 2004;Farghaly et al, 2009;Moreno et al, 2011;Salari et al, 2012). These products have also been studied for acute toxicity, antifeedant, or repellent, and fumigant effects, as well as inhibiting reproduction of many pest species ( Ben et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

Hussein

Hak

et al. 2015

Journal of Plant Protection and Pathology

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Plants extracts and essential oils were used in pest management in different crops against various pests. Under field conditions, we examined the effect of two plant extracts and four essential aromatic oils on the response of tomato hybrid cultivar Gold Stone to Tuta absoluta infestation. Also, their effects on some growth characteristics of tomato plants as well as their total phenolic compounds and total flavonoids contents were explored in the two successive summer seasons of 2011 and 2012. The treatments were Lemon grass extract (Cymbopogon citratus) at 25 gm /L., Garlic extract (Allium sativum) at 5ml / L., Eucalyptus oil (Eucalyptus spp.) at 0.5%, Rue oil (Ruta graveolens) at 0.5%, Anise oil (Ocimum basilicum) at 0.5%, Basil oil (Pimpinella anisum) at 0.5%. Ethyl acetate (Solvent) and tap water (Control). The plants were sprayed three times at two week intervals starting after 40 days from transplanting. All treatments reduced population density of Tuta absoluta significantly. The highest reduction was recorded by garlic extract followed by lemon grass extract and basil oil. Lemon grass extract significantly increased Lascorbic acid (Vitamin C) contents in tomato fruits followed by basil oil. Also, garlic extract increased the yield of tomato significantly followed by eucalyptus oil in the first season while in the second season, anise oil followed by garlic extract were insignificantly increased the fruit yield than the other tested treatments. On the other hand, garlic extract recorded the highest values of total phenolic compounds (TPCs) and total flavonoids (TFs) in unifested and infestedtreated tomato leaves.

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“…Decreased efficacy of plant extracts over time was previously attributed to activity of insects' secretion system [35]. Moreira et al [36] associate differences in plant extracts toxicity with differential susceptibility of the insect.…”

Section: Discussionmentioning

confidence: 99%

Controlling Tuta absoluta (Meyrick) by Selected Crude Plant Extracts in the Laboratory and in the Screen House

Esther¹,

Emmanuel²,

George³

et al. 2019

JAST-A

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Effects of Commiphora swynnertonii, Synadenium glaucescens and Allium sativum extracts on the tomato leaf miner, Tuta absoluta (Meyrick) were evaluated on the adults and in screen house conditions. The adult stage was involved with 30 adults that were reared in an insectarium, the experimental design was a completely randomized design (plant extracts from three plants species  three doses of 2%, 4% and 8%). In the screen house, experimental dispositive was a completely randomized block design (two varieties of tomatoes  three plants extracts). Larval counts were performed after 0, 1, 2, 3 and 7 d of treatment, 40 tomato leaves (10  4 replicates) were randomly taken from each treatment. The mean percentage mortality of adults was recorded daily for 5 d.Results indicated that, each plant extract caused significant mortality to adults of T. absoluta after 5 d in comparison to the control. Leaf dipping against adult of T. absoluta proved to be the most effective for all plant extracts at 30%-100%. Commiphora resulted in the adults' mortality of 100%. In the screen house Commiphora showed the high reduction of infestation for Tanya and Cal J varieties. Treatment with this plant extract resulted in the highest fruit yield and the lowest yield loss compared to all the plant extracts. C. swynnertonii extract is recommended into integrated pest management strategies for the control of T. absoluta.

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Toxicity of Leaf Extracts ofAgeratum conyzoidesto Lepidoptera Pests of Horticultural Crops

Cited by 20 publications

References 12 publications

Biological invasion of European tomato crops by Tuta absoluta: ecology, geographic expansion and prospects for biological control

Biological invasion of European tomato crops by Tuta absoluta: ecology, geographic expansion and prospects for biological control

EFFECT OF TWO PLANT EXTRACTS AND FOUR AROMATIC OILS ON Tuta absoluta POPULATION AND PRODUCTIVITY OF TOMATO CULTIVAR GOLD STONE

Controlling Tuta absoluta (Meyrick) by Selected Crude Plant Extracts in the Laboratory and in the Screen House

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