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3 edition of Modelling population growth of greenhouse whitefly found in the catalog.

Modelling population growth of greenhouse whitefly

Modelling population growth of greenhouse whitefly

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Published by Wageningen Agricultural University in Wageningen, Netherlands .
Written in English


Edition Notes

Includes bibliographical references.

StatementJ.C. van Lenteren et al.
SeriesAgricultural University Wageningen papers ;, 89-2
ContributionsLenteren, J. C. van.
Classifications
LC ClassificationsMLCM 93/10491 (S)
The Physical Object
Pagination99 p. :
Number of Pages99
ID Numbers
Open LibraryOL1971036M
ISBN 109067541575
LC Control Number90208616

The fitted curves will be used as input for a simulation model of the population dynamics of B. tabaci in a greenhouse when parasitoids are released. The model makes it possible to evaluate the integrated effect of different life-history parameters and behavioural parameters of parasitoids on whitefly population levels in a greenhouse. The greenhouse whitefly, Trialeurodes vaporariorum, is one of the main transmitters of plant diseases. In general, the weakness of all whitefly species is their attraction to yellow color and light (Bonsignore, ). The three basic methods to monitor whitefly population include the use of sticky paper traps, pheromone traps, and light traps.

PDF | Biological control strategies of greenhouse whitefly with the parasitoidEncarsia formosawere studied with a simulation model of the | Find, read and cite all the research you need on.   The microarray data indicated that increases in SA-regulated defense gene RNAs are detected by 21 d after SLWF feeding (Kempema et al., ).To assess the timing of defense gene activation in response to SLWF nymph feeding, the levels of two sentinel defense gene RNAs were assessed at 0, 7, 14, 21, and 28 d after SLWF infestation (Fig. 2A).

The model estimates the growth of the whitefly population with and without the parasites." DeGrandi-Hoffman developed the software at the invitation of colleagues John P. Sanderson at Cornell University in Ithaca, New York, and Roy G. Van Driesche at the University of Massachusetts at Amherst. Because of outstanding success in controlling Trialeurodes vaporariorum on tomatoes, the biology and behavior of this wasp have been intensively studied to identify attributes that contribute to successful biological control and how best to manipulate augmentative releases into greenhouses to suppress whitefly population growth.


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Modelling population growth of greenhouse whitefly Download PDF EPUB FB2

XXX. Modelling population growth of greenhouse whitefly on tomato --XXXI. Simulation studies of population growth of greenhouse whitefly on tomato --XXXII. Simulation studies of the population growth of greenhouse whitefly on egg plant, cucumber, sweet pepper and gerbera.

Series Title: Agricultural University Wageningen papers, Other Titles. In addition, and as reported in other studies on greenhouse pests in Almería (Rodríguez et al., ), the outcomes of the models showed that whitefly abundance tended to be low in winter whereas thrips gradually increased in abundance in this period with a more marked population increase in spring.

The model results showed that whiteflies Author: M.M. Téllez, T. Cabello, M. Gámez, F.J. Burguillo, E. Rodríguez. A deterministic parameterized model of development of a greenhouse whitefly (Trialeurodes vaporariorum) population on field grown strawberry plants (Fragaria × ananassa) is presented (var.

Camarosa).The model calculates the timing of the physiological development of individual whiteflies and population size as a function of temperature, mortality, oviposition, and plant Cited by: 3. The greenhouse whitefly Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) is a serious pest of many fruits, vegetables and ornamental crops.

Fig Modelling population growth of greenhouse whitefly book. Population growth (number of empty pupa) of greenhouse whitefly 18 C° (model, • observation) SERIES B Output of the model resulted the average and maximum empty pupa per day and total empty pupas at the end of simulation.

Plot of population growth of model and observation are given in figure that. To validate model there were two data sets available to compare the model result with.

The data came from experiments that were carried out in greenhouse environment. In first experiment there were followed and recorded the numbers of developmental stages of two sets of and whitefly eggs on tomato leaves daily. The greenhouse whitefly Trialeurodes vaporario-rum Westwood (Hemiptera: Aleyrodidae) is a cos-mopolitan and highly polyphagous pest species of greenhouse crops especially infesting tomato.

It is widespread in Serbia and one of the most damag-ing pests of vegetables and organmentals in glass and plastic greenhouses (Perić et al., ).

Adults. Title: The parasite-host relationship between Encarsia formosa (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Homoptera: Aleyrodidae).

Flower model trap (FMT) made from artificial yellow chrysanthemum flower coated with sticky material was originally developed to attract anthophilous Frankliniella thrips species.

During evaluation of the FMT in a strawberry greenhouse, it was also found to attract higher number of greenhouse whitefly, Trialeurodes vaporariorum Westwood (Homoptera: Aleyrodidae), compared to. XXX. Modelling population growth of greenhouse whitefly on tomato.

Hulspas-Jordaan2 and J. van Lenteren1 1. Department of Entomology, Agricultural University, P.O. BoxEH Wageningen, The Netherlands 2. Present address: National Institute of Agro-Environmental Sciences, Tsukuba, IbarakiJapan. Factors affecting the population dynamics of the wasp Encarsia formosa and the whitefly Trialeuroides vaporariorum in greenhouse vegetable systems include host parasitoid ratios, the starting density and age structure of whitefly populations at the time of the first parasitoid releases, levels of host-feeding and parasitism, temperature.

In this study genetic variation for resistance to the greenhouse whitefly (Trialeurodes vaporariorum) of four genotypes of tomato (L. esculentum) and two subspecies of L. hirsutum was investigated. Resistance was quantified by the whitefly life history components adult survival, oviposition rate, pre-adult survival and developmental period, measured on plants inoculated with whiteflies in clip.

We evaluated four models: (a) model one assumed T. vaporariorum sequences were from a single population (b) model two assumed T. vaporariorum migration from clades 1a to 1 (c) Life history traits and population growth of greenhouse whitefly on different tomato genotypes.

house vary with whitefly population density from three wasps per 2 m 2 (2 per 15 ft. 2) every w eeks, starting at first sign of whitefly presence, to three or.

The parasite-host relationship between Encarsia formosa (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Homoptera: Aleyrodidae). XXX Modelling population growth of greenhouse whitefly on tomato: Author(s) Hulspas-Jordaan, P.M.; Lenteren, J.C.

van: Source. Development time, reproduction, survival and sex ratio were determined for the omnivorous mite Amblyseius swirskii at nine constant temperatures (13, 15, 18, 20, 25, 30, 32, 34 and 36°C) on pepper leaf disks with cattail, Typha latifolia, pollen for food.

These data were used to derive life table parameters at these constant temperatures. No development was observed at 13°C. A dimension changeable matrix model which incorporates age structure and effects of changing temperatures can simulate and predict the trends of whitefly population developments in greenhouses.

A stochastic simulation model, which includes (a) the detailed search behavior of the parasitoid and (b) the demographics and distribution of whitefly and parasitoid in. Summary. A simple simulation model was developed to simulate the population dynamics of the system of the greenhouse whitefly (Trialeurodes vaporariorum Westwood) and the parasitoidEncarsia formosa the assumption that temperature is constant, the whitefly population was described as the Leslie Matrix model.

Parasitization and host feeding by the parasitoid population were modelled by. The parasite-host relationship between Encarsia formosa (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Homoptera: Aleyrodidae).

XXX Modelling population growth of greenhouse whitefly. The greenhouse whitefly, Trialeurodes vaporariorum (Westwood) (Hem., Aleyrodidae) is a serious pest inflicting direct and indirect damages on several plants (Byrne & Bellows ; van Lenteren et.Page Appendix N Population Growth and Greenhouse Gas Emissions.

By utilizing World Bank categories of actual economic growth experience and projected population growth rates, the scenarios for population, per capita income, CO 2 emissions, and family planning (FP) effect are computed and reported in Table N Each group of countries is indexed to in greenhouse whitefly in fields and greenhouses in Beijing during [15], it has reached pest status, causing damage to food crop and ornamental plants in a number of provinces including Xinjiang and Gansu in the s.

Currently, the greenhouse whitefly is known to be distributed in at least 22 provinces of China [14].