Effect of Temperature and CO2 on Population Growth of South American Tomato Moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on Tomato

Abstract

The effects of different temperatures (26, 28, 30, and 32°C) and CO2 concentrations (380 and 550 ppm) on the life table of Tuta absoluta were evaluated. The life history raw data of T. absoluta were analyzed by using the age-stage, two-sex life table. Results showed that increase in temperature reduced the larval developmental time of T. absoluta, whereas the elevated CO2 concentration (eCO2) extended the larval developmental time. Highest fecundity rate was recorded at 30°C at ambient CO2 (aCO2) condition (88.10 eggs). Total fecundity significantly reduced under eCO2 at 28°C and 30°C. There was a 5-10% higher mortality observed under eCO2 than aCO2 condition. With rise in temperature from 26-30°C, T. absoluta reared under eCO2 condition showed lower net reproductive rate, intrinsic and finite rate of increase in comparison to aCO2. However, these parameters started decreasing at 32°C under both eCO2 and aCO2 conditions.

Population growth potential of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on tomato, potato, and eggplant

“…The population growth parametersof T. absoluta on tomato have been reported by several researchers (Erdogan & Babaroglu, 2014;Miranda, Picanço, Zannuncio, & Guedes, 1998;Nitin, Sridahr, Onkar, Chakravarthy, & Atlihan, 2018;Pereyra & Sánchez, 2006) (Sauvion, Mauriello, Renard, & Boissot, 2005), understanding host-plant suitability is considerably important in formulating IPM strategies (Hill, Li, & Hartman, 2004). Therefore, the effect of different host plants on population growth parameters of T. absoluta was determined.…”

Does elevated CO2 affect the biological aspects of Liriomyza sativae in melon plants?

“…In a study with another Agromyzidae leafminer fly, C. syngenesiae, a prolonged development period was also observed in the treatment with 400 ppm compared to 200 ppm of CO 2 (Smith & Johnes, 1998). For the lepidopteran leafminer, T. absoluta, the same prolonged period was observed for the larval period in an environment with 580 ppm CO 2 (Satishchandra et al, 2018). The prolonged development period of L. sativae may have been caused by the nutritional quality of the leaves available to the larvae.…”

“…With lepidopteran leafminers, reduced oviposition of Tuta absoluta Meyrick (Satishchandra, Vaddi, Naik, Chakravarthy, & Atlihan, 2018) and Phyllonorycter tremuloidiella Braun were detected with elevated CO 2 levels (Kopper & Lindroth, 2003). Considering the immature stages of lepidopteran leafminers, higher CO 2 concentrations increased T. absoluta development time (Satishchandra et al, 2018), and reduced larval and pupal viability of Dialectica scalariella (Zeller) (Johns & Hughes, 2002). With leafminers flies from the Liriomyza genus, no studies are available regarding the impact of CO 2 on their biology.…”

Indirect effect of elevated CO2 concentration on Bemisia tabaci MEAM1 feeding on Bt soybean plants

“…Insect-host plant interactions can be influenced by eCO 2 due to changes in the nutritional quality and physiology of the host plants (Dáder et al, 2016;Kanle Satishchandra, Vaddi, Naik, Chakravarthy, & Atlihan, 2018). Our results indicate that the Bt soybean plants grown in the presence of elevated CO 2 influence the feeding behaviour and TA B L E 1 Mean ± SE values of plant growth parameters (n = 10) and plant nutrient content (n = 5) under ambient CO 2 (aCO 2 : 450 ppm) and elevated CO 2 (eCO 2 : 700 ppm) conditions in soybean plants with different phenology stages (V3 and V6) performance of Bemisia tabaci (MEAM1).…”

“…Insect–host plant interactions can be influenced by eCO 2 due to changes in the nutritional quality and physiology of the host plants (Dáder et al., 2016; Kanle Satishchandra, Vaddi, Naik, Chakravarthy, & Atlihan, 2018). Our results indicate that the Bt soybean plants grown in the presence of elevated CO 2 influence the feeding behaviour and performance of Bemisia tabaci (MEAM1).…”