scholarly journals Determination of The Prevalence and Population Development of Tomato Leafminer [Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)] in Tomato (Lycopersicon esculentum Mill.) Planting Areas of Sanliurfa Province

2021 ◽  
Vol 5 (2) ◽  
pp. 476-491
Author(s):  
Ayçin AKSU ALTUN
Keyword(s):  
Lycopersicon Esculentum ◽  
Adult Population ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Population Development ◽  
Tomato Field ◽  
Tomato Leaf Miner ◽  
The Village

This study was carried out to determine the extensity, development of population and the state of damage of tomato leaf miner (Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)) in total eight tomato fields located in the villages of Goktepe of Central Sanliurfa, Meteler of Birecik, Kepirce of Bozova, Yalcinkaya of Ceylanpinar, Ovacik of Hilvan, Kucuk Yucelen of Siverek, Aligor of Suruc and Ciftciler of Viransehir in 2011. To determine the extensity of tomato leaf miner each of the 5 districts in the village tomato field was checked by observation whether adult or larvae found in fields T. absoluta. The result showed that tomato leaf miner was common in all the districts. The highest density of tomato leaf miner adult population quantities were 630, 800, 400, 965, 211, 600, 215 and 96 pcs/week in Goktepe of Central Sanliurfa, Meteler of Birecik, Kepirce of Bozova, Yalcinkaya of Ceylanpinar, Ovacik of Hilvan, Kucuk Yucelen of Siverek, Aligor of Suruc and Ciftciler of Viransehir, respectively. Tomato leaf miner harmed the fruits, particularly total in 1st and 2nd harvest of tomato (the end of August- the beginning of September) , if precautions were not taken. Moreover, it was recorded that if the adult population was quite dense in the fields study conducted, there aren’t any undamaged leaves and fruits from T. absoluta.

scholarly journals TOMATO LEAF MINER, TUTA ABSOLUTA (LEP., GELECHIIDAE), POPULATION FLUCTUATION AND SEASONAL ACTIVITY IN THE FIELD

2020 ◽  
Vol 6 (8) ◽  
pp. 88-98
Author(s):  
Shahriar Asgari ◽  
Yaghoub Fathipour
Keyword(s):  
Larval Density ◽  
Pheromone Trap ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Population Fluctuation ◽  
Leaf Miner ◽  
Seasonal Activity ◽  
Tomato Field ◽  
Tomato Leaf Miner ◽  
Tehran Province

Seasonal activity and population fluctuation of tomato leaf miner, Tuta absoluta (Meyrick), a dangerous pest of tomato fields in Tehran province, were determined in Varamin region, south of Tehran province in 2015-2016. Number of moths in pheromone trap and number of larvae per plant were counted weekly in a trail tomato field. The trap capture began on mid-April in warm dry spring of 2015 and on mid-May in cool wet spring of 2016. The first and highest moth peaks in trap occurred about one month earlier in 2015 than 2016. The larval density per plant at the highest peak reached 2.34 and 10.8 in 2015 and 2016, respectively. A temperature range of 25-30°C was desirable to the pest in which the interval of successive peaks decreased. In both years, the pest created three generations over a growing season, according to larval peaks, but 11 over a year, according to trap data, that the 11th generation overwintered. The temperature of 35°C and above limited larval activity and decreased the population. After the crop removed, the pest population declined due to host shortage, but it increased with the access of hosts in the second cultivation since mid-September until the cold season.

scholarly journals Pathogenicity of some commercial formulations of entomopathogenic fungi on the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Assinapol Ndereyimana ◽  
Samuel Nyalala ◽  
Patrick Murerwa ◽  
Svetlana Gaidashova
Keyword(s):  
Entomopathogenic Fungi ◽  
Larval Mortality ◽  
Mortality Rates ◽  
Negative Control ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Tomato Production ◽  
Tomato Field ◽  
Tomato Leaf Miner

AbstractThe tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is a major threat to tomato production in Rwanda. Laboratory bioassays were conducted to evaluate some commercial entomopathogenic fungi (EPF) formulations on T. absoluta larvae. The larvae, inside the leaf galleries, were obtained from the established tomato field. Commercial EPF: Metatech® WP [Metarhizium anisopliae (Metschn.) Sorok, Strain FCM Ar 23B3], Beauvitech® WP [Beauveria bassiana (Bals.) Vuill., Strain J25], and Botanigard ES [B. bassiana (Bals.), Strain GHA] were tested in Petri dishes against T. absoluta larvae at a concentration of 108 spores/ml. A synthetic insecticide, imidacloprid was included for comparison as a positive control, while water was used as a negative control. All the tested commercial EPF formulations were pathogenic to T. absoluta larvae in all conducted bioassays. Mortality rates increased with an increase in time (days). However, the insignificant difference was observed in the mortality of T. absoluta larvae treated with the commercial EPF during the first 3 days in all bioassays. Highly significant differences (p < 0.01) in pathogenicity among treatments were observed from the 4th to 6th days after inoculation. Metatech® WP and Beauvitech® WP recorded the highest mortality rates (82.8 and 60.8%) with the LT50 values of 3.9 and 5.2 days, respectively, while imidacloprid caused the least larval mortality. Since the EPF demonstrated high virulence level against the target pest, the efficacy of Metatech® WP and Beauvitech® WP should be advanced to field evaluation to determine their potential as alternatives to the synthetic insecticides.

scholarly journals Effect of Net House on Tomato Leaf Miner (Tuta absoluta) (Meyrick) (Lepidoptera: Gelechiidae) Population in Tomato Cultivated in Chitwan, Nepal

2020 ◽  
Vol 8 (11) ◽  
pp. 2368-2371
Author(s):  
Ankit Soti ◽  
Rajendra Regmi ◽  
Arjun Kumar Shrestha ◽  
Resham Bahadur Thapa
Keyword(s):  
Pest Management ◽  
Initial Level ◽  
Tomato Fruit ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Marketable Yield ◽  
Tomato Field ◽  
Tomato Leaf Miner

This experiment was conducted in tomato field at Agriculture and Forestry University (AFU, Chitwan, Nepal) between October 2016 and May 2017 to evaluate effect of net house on invasive insect species of tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). The trial was setup with two treatments inside net house and under open conditions and was designed with four replications. The adults of T. absoluta were observed significantly lower numbers inside the net house (1.41 adult/trap) compared to the open condition (24.84 adult/trap). The T. absoluta population increased with rainfall. The marketable yield was significantly higher inside the net house (100.91 ton/hec) due to reduction of damage to tomato fruit (4 ton/hec) by T. absoluta. The initial level of investment was found to be higher inside the net house when compared to open cultivation. In terms of economic analysis in long term aspect only, the net house is a suitable means of pest management against T. absoluta.

scholarly journals Tuta absoluta (Meyrick, 1917) (Lepidoptera, Gelechiidae): A new pest of tomato in Serbia

2011 ◽  
Vol 26 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Ivo Tosevski ◽  
Jelena Jovic ◽  
Milana Mitrovic ◽  
Tatjana Cvrkovic ◽  
Oliver Krstic ◽  
...  
Keyword(s):  
South America ◽  
Molecular Study ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Tomato Leaf Miner ◽  
Production Area ◽  
The Village ◽  
New Pest ◽  
Field Production

Tomato leaf miner Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae), a devastating pest of tomato originating from South America has been recorded in Serbia on three localities: in tomato main greenhouse and open field production area located in the vicinity of town Leskovac (South Serbia), in surroundings of the village Donji Vrtogos (near town Vranje, South Serbia) and in a greenhouses complex in Kraljevci (60 km west of Belgrade). The presence of T. absoluta was confirmed by morphological and molecular study of the collected specimens.

scholarly journals Effects of some bioinsecticides on the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Alime Bayindir Erol ◽  
Oktay Erdoğan ◽  
İsmail Karaca
Keyword(s):  
Mortality Rate ◽  
Active Ingredient ◽  
Metarhizium Anisopliae ◽  
Mortality Rates ◽  
Tomato Leaf ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Verticillium Lecanii ◽  
Main Body ◽  
Tomato Leaf Miner

Abstract Background In this study, commercial bioinsecticides including entomopathogenic fungi, Beauveria bassiana, Metarhizium anisopliae, and Verticillium lecanii, and Spinetoram active ingredient insecticide were evaluated against the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) larvae. Main body The active ingredients were prepared at the recommended concentrations under laboratory conditions and applied to the 2nd instar larvae of T. absoluta by spraying with a hand sprayer. On the 1st, 3rd, 5th, and 7th days of the application, evaluations were made by counting survived individuals. The findings showed that the highest mortality rates were detected in the case of Spinetoram with 56, 60, 88, and 100% on all counting days of the experiments, respectively. The highest mortality rate among bioinsecticides was recorded for M. anisopliae, with 87% mortality on the 7th day of application. Short conclusion As a result, Spinetoram was found the most effective insecticide when applied to T. absoluta, followed by M. anisopliae.

Sign in / Sign up

Export Citation Format

Share Document