Susceptibility of Tuta absoluta (Meyrick) (Lep., Gelechiidae) reared on two species of Lycopersicon to Bacillus thuringiensis var. kurstaki

Giustolin, Teresinha Augusta; Vendramim, José Djair; Alves, Sérgio Batista; Vieira, Solange Aparecida; Pereira, Roberto M.

doi:10.1046/j.1439-0418.2001.00579.x

Cited by 62 publications

(52 citation statements)

References 28 publications

(34 reference statements)

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“…When they reach to the later instars there is more competition for food, and the larvae need to spread over the tomato plants [18]. Otherwise, Giustolin et al [19] stated that; the higher mortality of neonate larvae, in comparison with the later instars can be explained by feeding behaviour differences. Also, neonate larvae scratch the leaf for 20 ± 45 min before penetrating the mesophyll and are therefore exposed to a higher dose of bacterial spores and toxins.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Bacillus thuringiensis to Control Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under Laboratory Conditions

Alsaedi¹,

Ashouri²,

Talaei-Hassanloui³

2017

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The tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is among the most destructive pests that attack tomato in many countries. In this study, the efficiency of three suspensions (10 6 ; 10 5 ; 10 4 cell/ml) of Bacillus thuringiensis var. Kurstaki was tested on T. absoluta larvae 1 st , 2 nd , 3 rd and 4 th instar was assessed to study the effect of these suspensions on larval mortality. Results showed that the concentration 10 6 cell/ml resulted in the highest mortality of all instars larvae with an average mortality of 20%, 22.66%, 18.66% and 23.33% was recorded for the first, second, third and fourth instar, respectively. The greatest percentage of mortality occurred in the third day after the larvae fed with leaves treated with suspension B. thuringiensis.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Bacillus thuringiensis to Control Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under Laboratory Conditions

Alsaedi¹,

Ashouri²,

Talaei-Hassanloui³

2017

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“…Among the different entomopathogens that act against T. absoluta, B. thuringiensis var. kurstaki (Btk) seems to carry exceptional promise for use in Brazil (Giustolin et al 2001b).…”

Section: Entomopathogensmentioning

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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“…Toxins expressed by Bacillus spp. naturally colonize the phylloplane of tomato plants and survive for a period of 45 days on the tomato leaf surface (Theoduloz et al, 2003) that result in mortality on first to fourth larval instars, however, the death variation occurred due to feeding behavior difference (Giustolin et al, 2001;Youssef and Hassan, 2013). The first and second larval instars penetrate directly the leaves without much feeding.…”

Section: The Use Of Microbial Productmentioning

confidence: 99%

Tomato leafminer [(Tuta absoluta Meyrick) (Lepidoptera: Gelechiidae)] and its current ecofriendly management strategies: A review

Aynalem¹

2018

J. Agric. Biotech. Sustain. Dev.

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Continue climatic changes in the world enhance the emergence of invasive agricultural insect pests.Tuta absoluta is one of the most devastating tomato leafminer and it spreads extensively in almost all parts of the world. It is a serious threat for tomato production and it results in highest damage. T. absoluta has fast growth rate with developmental stages of egg, larvae, pupa, and adult and it adapts to different environmental conditions. A larva is the most destructive one that consumes preferably leaves, stems and fruits of the tomato plant by hiding within mesophyll of the plant tissues. Although different environmentally hazardous pesticides are used against T. absoluta, none of the insecticides give full control due to the resistance development. This problem calls an urgent search for eco-friendly alternatives to control this invasive insect. Recent investigations are focused on different environmental friendly approaches that inclusively termed as IPM strategies. These are cultural practices, biopesticides, and biological using parasitoids, predators, microbial cells, microbial products, RNAi, inheritance sterility development in insect and pest resistant plant cultivar production are considered as promising alternatives to control T. absoluta. Therefore, this review briefly describes the current status of these methods used to design suitable and sustainable management strategies against T. absoluta.

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Susceptibility of Tuta absoluta (Meyrick) (Lep., Gelechiidae) reared on two species of Lycopersicon to Bacillus thuringiensis var. kurstaki

Cited by 62 publications

References 28 publications

Evaluation of Bacillus thuringiensis to Control Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under Laboratory Conditions

Evaluation of Bacillus thuringiensis to Control Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under Laboratory Conditions

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

Tomato leafminer [(Tuta absoluta Meyrick) (Lepidoptera: Gelechiidae)] and its current ecofriendly management strategies: A review

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