Journal Article

Life table parameters of the woolly whitefly Aleurothrixus floccosus (Hemiptera: Aleyrodidae) and its parasitoid Cales noacki (Hymenoptera: Aphelinidae)

Solimano Fernandez, E., Universidad Arturo Prat, Iquique (Chile). Facultad de Recursos Naturales Renovables, Tello Mercado, V., Universidad Arturo Prat, Iquique (Chile). Facultad de Recursos Naturales Renovables, Giliomee, J.H., University of Stellenbosch (South Africa). Dept. of Botany and Zoology

2014

Overview

Biological parameters of the woolly whitefly Aleurothrixus floccosus (Hemiptera: Aleyrodidae) and its parasitoid Cales noacki (Hymenoptera: Aphelinidae) were determined at 25.0 +/- 2.0 deg C, 50.0 +/- 10.0% RH and a photoperiod of 14L : 10D on three different Citrus host plants. The percentage survival of A. floccosus ranged between 40.23 and 44.44%. The highest mortality was recorded in the first nymphal instar with mortalities ranging between 36.36 and 39.39%. On C. aurantifolia the total development time was 39.83 +/- 0.68 days and the pre-oviposition, oviposition and post-oviposition periods 2.45, 10.68 and 1.68 days, respectively. Adult longevity was 15.0 days and average fecundity 73.27 +/- 9.07 eggs. For C. noacki the pre-oviposition period was 0.8 days, oviposition period 4.38 days and post-oviposition period less than 1 day. Adult longevity of C. noacki was 5.18 days and average fecundity 31.25 +/- 2.87 eggs. The intrinsic growth rate (rm ) of C. noacki (0.160) was significantly greater ( P less than 0.05) than that of A. floccosus (0.076). The value of the finite rate of growth (λ) was also significantly ( P less than 0.05) greater for C. noacki (1.173) than for A. floccosus (1.079). The larger values of rm and λ recorded for C. noacki under experimental conditions indicate that this aphelinid has the potential to decrease populations of A. floccosus.

• Publisher: Institute of Entomology,Institute of Entomology, Biology Centre, Czech Academy of Science
• Subject: ADULTE / ADULTOS / ADULTS / ALEUROTHRIXUS FLOCCOSUS / ALEYRODIDAE / Animal behavior / ANIMAL DEVELOPMENTAL STAGES / Aphelinidae / biological control / CALES NOACKI / Citrus / CITRUS AURANTIIFOLIA / CITRUS MACROPHYLLA / CITRUS SINENSIS / DURACION / DURATION / DUREE / ECLOSION / Ecosystems / Eggs / ENVIRONMENTAL TEMPERATURE / ETAPAS DEL DESARROLLO ANIMAL / EXPERIMENTACION EN LABORATORIO / EXPERIMENTATION EN LABORATOIRE / Fecundity / FEMALES / FEMELLE / FERTILIDAD / FERTILITE / FERTILITY / FEUILLE / Growth rate / HATCHING / HEMBRA / HEMIPTERA / HOJAS / Host plants / Hymenoptera / LABORATORY EXPERIMENTATION / LEAVES / life table / LONGEVIDAD / LONGEVITE / LONGEVITY / MACHO / MALE / MALES / NINFAS / NYMPHE / NYMPHS / OVIPOSICION / OVIPOSITION / PARASITISM / PARASITISME / PARASITISMO / PARASITOIDE / PARASITOIDES / PARASITOIDS / Pest control / PESTS OF PLANTS / PLAGAS DE PLANTAS / PONTE / population ecology / RAVAGEUR DES PLANTES / STADE DE DEVELOPPEMENT ANIMAL / SUPERVIVENCIA / SURVIE / SURVIVAL / TEMPERATURA AMBIENTAL / TEMPERATURE AMBIANTE / Trees / woolly whitefly