Seasonal phenology of Tuta absoluta (Lepidoptera: Gelechiidae) in protected and open-field crops under Mediterranean climatic conditions

Cocco, Arturo; Deliperi, S.; Lentini, Andrea; Mannu, Roberto; Delrio, G.

doi:10.1007/s12600-015-0486-x

Cited by 34 publications

(27 citation statements)

References 30 publications

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“…Adults and immature stages were simultaneously present during the same cultivation periods, indicating the overlapping of generations caused by the long oviposition period of females. These findings are in accordance with other studies monitoring the seasonal phenology of T. absoluta in protected environments (Cocco et al, ).…”

Section: Discussionsupporting

confidence: 93%

“…Male moth captures in monitoring traps may not correlate with larval population and crop damage, since trapping is affected by various factors including adult population density, trap and pheromone types (Biondi et al, ; Caparros, Haubruge, & Verheggen, ). Counting larval mines on leaflets located in the middle of tomato plants provide more reliable information about the size of the pest population and crop damage (Cocco et al, ). Consequently, the efficacy of the biopesticides in both the winter and summer experiments was evaluated by monitoring eight plants randomly selected per plot every week (≈48 hr after each spray application) for larval infestation.…”

Section: Methodsmentioning

confidence: 99%

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Efficacy of some biorational insecticides against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under laboratory and greenhouse conditions in Kuwait

Jallow

Dahab

Albaho

et al. 2018

J Applied Entomology

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The tomato leafminer, Tuta absoluta, is one of the most destructive pests of tomato worldwide. Management of the pest is mainly based on chemical insecticides. Reliance on insecticides is difficult to sustain because of unintended long‐term adverse effects on the environment and human health. Consequently, there is a need to develop pest management strategies that ensure the production of high‐quality products, while at the same time ensuring environmental sustainability and maximum consumer protection. We evaluated the efficacy the biopesticides: Azadirachtin, Bacillus thuringiensis, Steinernema feltiae and Beauveria bassiana individually and in combination against T. absoluta under laboratory and greenhouse conditions. When second instar larvae were exposed to tomato leaf discs treated with Azadirachtin (3 g/L), B. thuringiensis (0.5 g/L) or B. bassiana (1.5 g/L), 70%–86%, 55%–65%, and 45.5%–58.5% mortality was observed, respectively. Steinernema feltiae (1,000 IJs/ml) was the least effective biopesticide, with 26%–42% mortality. In the greenhouse trials on tomato, pest infestation (mines/10 leaves/plant) and fruits damaged were significantly lower on plants treated with Azadirachtin + B. thuringiensis or Azadirachtin + B. bassiana compared to plants treated with Azadirachtin, B. thuringiensi, B. bassiana or S. feltiae alone. Azadirachtin + B. thuringiensis and Azadirachtin + B. bassiana resulted in 90% and 81% reduction in fruits damaged in the summer experiments, respectively, and 96% and 91% in winter. The most severe pest infestation was observed on plants treated with S. feltia. The results indicate that the biopesticides, except S. feltia, can contribute to T. absoluta control in greenhouse tomato crops. In particular, the combined use of Azadirachtin with B. thuringiensis or B. bassiana provided the highest level of control of the pest. The potential for including these biopesticides in an overall sustainable integrated pest management programme for T. absoluta is discussed.

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Section: Discussionsupporting

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Efficacy of some biorational insecticides against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under laboratory and greenhouse conditions in Kuwait

Jallow

Dahab

Albaho

et al. 2018

J Applied Entomology

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“…In similar conditions using pheromone in the Mediterranean, Cocco et al (2015) showed that male catches and leaf infestation were low in winter and increased steadily in the spring, up to 797.3 males/ trap/week and 6.4 mines/leaves, respectively. In open field conditions, males were caught throughout the year with a peak in early September, concurrently with the highest average daily temperatures.…”

Section: Evaluation Of the Adult T Absoluta In The Delta Trap With Tmentioning

confidence: 88%

“…Studies in the Mediterranean reported high pest infestation on tomato leaves (3.8 mines/leaf) and fruits (27% of damaged fruits). Eggs, larvae, and adults were detected over two consecutive winters, suggesting that T. absoluta can develop continuously throughout the year under natural conditions (Cocco et al, 2015) (Table 1). Garzia et al (2012) report that T. absoluta can be found in the plants during the entire development cycle.…”

Section: Evaluation Of T Absoluta Phases In Tomatomentioning

confidence: 99%

Path analysis to evaluate the direct and indirect effects of climatic variables in the development stages of Tuta absoluta (Lepidoptera: Gelechiidae) in tomato (Solanum lycopersicum L.)

Barros¹,

Reis²,

Magalhães³

et al. 2018

Sci. Res. Essays

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The objective of this study was to evaluate the influence of climatic variables on the population dynamics of the tomato moth Tuta absoluta (Meyrick, 1917), (Lepidoptera: Gelechiidae) through correlations and path analysis, on the main variable in organic and conventional tomato crops (Solanum lycopersicum L., Solanaceae). We studied the effects of the pheromone (used Delta traps) on insect phase sampling in two areas of agricultural with tomato cultivation in Alagoas, Northeast Brazil: latitude 09º81´76´´, longitude 36º59´42´´, during the agricultural years 2015-2017. The experimental design was completely randomized with two treatments with 60 replicates. In the path analysis, the main variables were adults, eggs, caterpillars and mines. Rainfall, relative humidity, temperature, wind speed, and solar radiation were explanatory and correlated variables. In the path analysis we observed that rainfall, relative humidity, and solar radiation were the variables of greatest influence on the population dynamics with direct effects in the organic system with correlation coefficients r = 0.83, r = 0.52 and r = 0.45 respectively. The following variables showed negative correlations: wind r = -0.43, and temperature r = -0.19. In the conventional system r = 0.80, r = 0.43 and r = 0.41, for the same variables. The wind speed variable had a negative effect of r = -0.38, and the temperature had a negative effect of r = -0.13. We observed that climatic conditions are variables conditioning the development of insect infestation in the tomato crops studied.

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“…Chermiti et al (2009) estimated tomato fruit losses between 11.08 and 43.33%; Karut et al (2011) at 38.4% andHarbi et al (2012) at 31.4%. Cocco et al (2015) evaluated tomato fruits damaged by larvae at 27%. These same authors emphasised that this is a consequence of increased density of T. absoluta on leaves.…”

Section: Tomato Cultivarmentioning

confidence: 99%

Population changes of Tuta absoluta (Gelechiidae) and fruit loss estimates on three tomato cultivars in greenhouses in Biskra, Algeria

2017

EEB

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The aim of this study was to monitor Tuta absoluta population development in greenhouse conditions on different tomato cultivars. All pest stages were present on all the cultivars. The development of T. absoluta was variable and depended both on temperature and tomato cultivar. Losses due to development of T. absoluta larvae on the fruit were estimated at 43.3% on cv. 'Sahara' , 3% on cv. 'Dawson' , and 17% on cv. 'Toufan' . Percentage of fruit losses was positively correlated with increase in number of larvae. The attacks were more severe during the spring period with rising temperatures. Strong applications of pesticides used to control various tomato pests resulted in absence of antagonists in the greenhouse. Cultivars 'Toufan' and 'Dawson' were less suitable for cultivation in conditions of heavy leaf miner infestation; this characteristic may be associated with other control methods to reduce plant damage.

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Seasonal phenology of Tuta absoluta (Lepidoptera: Gelechiidae) in protected and open-field crops under Mediterranean climatic conditions

Cited by 34 publications

References 30 publications

Efficacy of some biorational insecticides against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under laboratory and greenhouse conditions in Kuwait

Efficacy of some biorational insecticides against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under laboratory and greenhouse conditions in Kuwait

Path analysis to evaluate the direct and indirect effects of climatic variables in the development stages of Tuta absoluta (Lepidoptera: Gelechiidae) in tomato (Solanum lycopersicum L.)

Population changes of Tuta absoluta (Gelechiidae) and fruit loss estimates on three tomato cultivars in greenhouses in Biskra, Algeria

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