Thermal Requirements and Life Table Parameters of Tomato Leaf Miner Tuta absoluta (Lepidoptera: Gelechiidae) in Egypt

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.

Download Full-text

Attraction of female tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera:Gelechiidae) to shared compounds from hosts

Phytoparasitica ◽

10.1007/s12600-020-00848-x ◽

2020 ◽

Author(s):

Davis Msisi ◽

Nicodemus D. Matojo ◽

Fikira Kimbokota

Keyword(s):

Tomato Leaf ◽

Tuta Absoluta ◽

Leaf Miner ◽

Tomato Leaf Miner

Download Full-text

Spatial distribution pattern of South American tomato leaf miner, Tuta absoluta (meyrick) on open field tomato in Andhra Pradesh

Journal of Entomological Research ◽

10.5958/0974-4576.2021.00082.7 ◽

2021 ◽

Vol 45 (3) ◽

pp. 537-540

Author(s):

P. Venkataramanaiah ◽

S.R. Koteswara Rao ◽

K.V. Hari Prasad ◽

M. Reddi Sekhar

Keyword(s):

Spatial Distribution ◽

Distribution Pattern ◽

Open Field ◽

Andhra Pradesh ◽

Tomato Leaf ◽

Spatial Distribution Pattern ◽

Tuta Absoluta ◽

Leaf Miner ◽

South American ◽

Tomato Leaf Miner

Download Full-text

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

International Journal of Engineering Technologies and Management Research ◽

10.29121/ijetmr.v6.i8.2019.444 ◽

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.

Download Full-text