Life history traits and population growth of greenhouse whitefly (Trialeurodes vaporariorum westwood) on different tomato genotypes

Abstract

SuMMARYThe effects of five tomato genotypes (cv. Narvik and hybrids NS-6, Tamaris, Alliance and Marko) on the survival, reproduction, development and population growth of the greenhouse whitefly Trialeurodes vaporariorum were examined. A laboratory population of T. vaporariorum had been reared on tobacco plants for three years before the study. Females that laid eggs on the genotype Marko lived significantly longer and their offspring needed significantly shorter periods to develop than females on the genotype Narvik. The highest gross and net fecundity rates were found in females on the genotype Marko (36.74 eggs/ female and 27.93 eggs/female, respectively) and they differed significantly from the corresponding rates of females living on the genotype NS-6 (18.55 eggs/female and 15.33 eggs/ female), who had the lowest fecundity rates. The highest gross and net fertility rates were also found in females on the genotype Marko (31.24 adults/female and 23.73 adults/female), and they were significantly higher than those of females living on NS-6 (14.85 adults/female and 12.53 adults/female). Besides, net fertility rate of the females living on the genotype Narvik (13.80 adults/female) was also significantly lower than the rate of females on Marko. The instantaneous rates of increase showed no significant difference over a 10-day interval following the start of oviposition, while the increase rate was significantly higher on the genotype Marko after 12, 14 and 16 days, compared to the genotype NS-6. Eighteen, 20 and 22 days after the beginning of oviposition, the instantaneous rate of increase on the genotype Marko was significantly higher than it was on NS-6 and Narvik. Our data provide a basis for further research aiming to improve programs of integrated management of greenhouse whitefly.

Global phylogenetic relationships, population structure and gene flow estimation of Trialeurodes vaporariorum (Greenhouse whitefly)

“…Whiteflies are important agricultural pests with a global distribution (Anderson et al, 2004; Lapidot et al, 2014). Their agricultural importance is associated with damage caused during feeding on the plant phloem and in the production of honeydew (Colvin et al, 2006; Prijović et al, 2013). Honeydew serves both to reduce transpiration and as an inoculation point for saprophytic fungi, which grow over the leaf surface reducing photosynthesis (Colvin et al, 2006).…”

Genetic Diversity, Population Structure and Species Delimitation ofTrialeurodes vaporariorum(greenhouse whitefly)

“…Kapantaidaki et al (2014) supported these findings using a combination of mtCOI and secondary endosymbionts. In addition, Prijović et al (2013) reported a similar lack of phylogeographical structuring across populations in Serbia and surrounding countries. However, some studies have reported population structuring in different regions, with several drivers implicated as influencing population structure.…”

“…Whiteflies are important agricultural pests with a global distribution (Anderson et al, 2004; Lapidot et al, 2014). Their agricultural importance is associated with damage caused during feeding on the plant phloem and the production of honeydew (Colvin et al, 2006; Prijović et al, 2013). Honeydew serves both to reduce transpiration and as an inoculation point for saprophytic fungi which grows over the leaf surface reducing photosynthesis (Colvin et al,2006).…”

Peer Review #1 of "Predatory functional response and fitness parameters of Orius strigicollis Poppius when fed Bemisia tabaci and Trialeurodes vaporariorum as determined by age-stage, two-sex life table (v0.1)"

“…They considered to be one of the most significant plant pests and colonizes over 600 host plants, causing significant damage (Polston et al 2014). This specie of whitefly is distributed globally (De Barro 1995; De Barro et al 2000; De Barro et al 2005) and causes significant damage to crop yield and quality by feeding on plant phloem and secreting honeydew that stimulates the rapid growth of molds (Colvin et al 2006;Prijović et al 2013). However, the most significant problem associated with outbreaks of B. tabaci is the transmission of plant viruses (Navas-Castillo et al 2011).…”