Plant Protection Science, 2003 (vol. 39), issue 4
Index Volume 39
editors
Plant Protect. Sci., 2003, 39(4):X1 | DOI: 10.17221/7324-PPS 
Evaluation of efficacy of Cydia pomonella granulovirus (CpGV) to control the codling moth (Cydia pomonella L., Lep.: Tortricidae) in field trials
Jitka Stará, František Kocourek
Plant Protect. Sci., 2003, 39(4):117-125 | DOI: 10.17221/3830-PPS
The efficacy of a CpGV-based preparation of Czech production against codling moth (CM) was tested in an experimental apple orchard at Prague-Ruzyně in 1998-2000. The influence of CpGV treatment on the reduction of CM population density and fruit injury was evaluated in comparison with teflubenzuron. Decline of CpGV efficacy in the orchard was tested in laboratory conditions on apples sampled at different terms after CpGV treatment. The rates of CpGV applied ranged from 0.5 to 1.00 × 1013 granulles/ha, and the number of applications from 3 to 5 per year. The biological efficacy of CpGV to reduce the CM population density ranged from...
The presence of non-target lepidopteran species in pheromone traps for fruit tortricid moths
Eva Hrudová
Plant Protect. Sci., 2003, 39(4):126-131 | DOI: 10.17221/3831-PPS
In the localities Brno-Tuřany (Brno-město) and Prakšice (Uherské Hradiště) pheromone traps were used to monitor tortricid moths Adoxophyes orana, Archips podanus, A. rosanus, Hedya nubiferana, Pandemis heparana, Spilonota ocellana, Cydia pomonella, Cydia funebrana and Cydia molesta. Other moths species were also present in these pheromone traps for target species: Pammene albuginana, Cydia coronilana, Notocelia rosaecolana, Hedya pruniana, noctua pronuba, Ypponomeuta malinellus, Pyrausta rectefascialis and...
Thrips (Thysanoptera) of vegetable crops (okro, spinach, garden egg and pumpkin) grown in Southeastern Nigeria
Evangelina T. Oparaocha, Raphael N. Okigbo
Plant Protect. Sci., 2003, 39(4):132-138 | DOI: 10.17221/3832-PPS
Eight vegetable crops were sampled at five localities in Southeastern Nigeria and were found to harbour one or more species of thrips. The crops were Amaranthus hybridus, A. spinosus, Basella rubra, Solanum incanum, S. melongena, Hibiscus esculentus, Telfairia occidentalis and a species of Solanum. The sampled localities, with the frequency of occurrence of thrips, were Umuahia (29.6%), Owerri (28.5%), Port Harcourt (25.7%), Calabar (18.7%) and Enugu (6.0%). The studies revealed that crops with very heavy infloresences, e.g. Amaranthus hybridus, had a higher number of...
Molecular variability of Citrus exocortis viroid in a single naturally infected citrus tree
Amine Elleuch, Mohamed Marrakchi, Dominique Lévesque, Nabina Bessais, Jean Pierre Perreault, Hatem Fakhfakh
Plant Protect. Sci., 2003, 39(4):139-145 | DOI: 10.17221/3833-PPS
We report the nucleotide sequence of Citrus exocortis viroid (CEVd) from a single natural infected citrus tree of the clementinier variety (Citrus clementina) in Tunisia. The sequence variability of this viroid from its natural host without using an alternative passage by an indicator host or an artificial inoculation was found to occur at 14 positions, giving a variability of 3.8%. This work confirms that naturally - occurring viroids belonging to the Pospiviroid genera contain a mixture of sequence variants. In addition, this study confirms the worldwide distribution of this viroid.
Molecular and Biochemical Methods Used for the Identification of Globodera Species in Slovenia (from 6th Conference of European Foundation for Plant Pathology, Prague, Czech Republic, 8-14 September 2002)
S. Širca, G. Urek, V. Meglič
Plant Protect. Sci., 2003, 39(4):151-153 | DOI: 10.17221/3835-PPS
Globodera species identification is based on specific morphological characteristics which are included in the majority of keys used for Globodera identification. To confirm and make more precise the morphometrical method, other methods have been developed. At Agricultural Institute of Slovenia, molecular and biochemical methods are applied. With the use of PCR-RFLP method we try to distinguish between G. rostochiensis, G. pallida and G. tabacum. Patterns of nematode DNA digested with restriction endonucleases and subjected to agarose gel electrophoresis are analysed. Differences in DNA sequence result...