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The effects of five tomato genotypes (cv. Narvik and hybrids NS-6, Tamaris, Alliance and\udMarko) on the survival, reproduction, development and population growth of the greenhouse\udwhitefly Trialeurodes vaporariorum were examined. A laboratory population of T.\udvaporariorum had been reared on tobacco plants for three years before the study. Females\udthat laid eggs on the genotype Marko lived significantly longer and their offspring needed\udsignificantly shorter periods to develop than females on the genotype Narvik. The highest\udgross and net fecundity rates were found in females on the genotype Marko (36.74 eggs/\udfemale and 27.93 eggs/female, respectively) and they differed significantly from the corresponding\udrates of females living on the genotype NS-6 (18.55 eggs/female and 15.33 eggs/\udfemale), who had the lowest fecundity rates. The highest gross and net fertility rates were\udalso found in females on the genotype Marko (31.24 adults/female and 23.73 adults/female),\udand they were significantly higher than those of females living on NS-6 (14.85 adults/female\udand 12.53 adults/female). Besides, net fertility rate of the females living on the genotype\udNarvik (13.80 adults/female) was also significantly lower than the rate of females on Marko.\udThe instantaneous rates of increase showed no significant difference over a 10-day interval\udfollowing the start of oviposition, while the increase rate was significantly higher on the\udgenotype Marko after 12, 14 and 16 days, compared to the genotype NS-6. Eighteen, 20 and\ud22 days after the beginning of oviposition, the instantaneous rate of increase on the genotype\udMarko was significantly higher than it was on NS-6 and Narvik. Our data provide a\udbasis for further research aiming to improve programs of integrated management of greenhouse\udwhitefly

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