Template-Type: ReDIF-Article 1.0 Author-Name: Ken Pernezny Author-Workplace-Name: University of Florida, Everglades Research and Education Center, Belle Glade, USA Author-Name: Peter Stoffella Author-Workplace-Name: University of Florida, Everglades Research and Education Center, Belle Glade, USA Author-Name: Janice Collins Author-Workplace-Name: University of Florida, Everglades Research and Education Center, Belle Glade, USA Author-Name: Amanda Carroll Author-Workplace-Name: University of Florida, Everglades Research and Education Center, Belle Glade, USA Author-Name: Audrey Beaney Author-Workplace-Name: University of Florida, Everglades Research and Education Center, Belle Glade, USA Title: Control of target spot of tomato with fungicides, systemic acquired resistance activators, and a biocontrol agent Abstract: Control of target spot of tomato, caused by the fungus Corynespora cassiicola (Berk. & Curt.) Wei., was studied in three seasons in southern Florida, USA. The strobilurin fungicide azoxystrobin and a combination product of mancozeb and fumoxate provided excellent control of target spot. In these treatments, accumulated disease severity values were only 10-15% of those in the untreated control and marketable yields were doubled. Excellent disease control also was achieved with acibenzolar-S-methyl, a systemic acquired resistance activator (SAR). This compound reduced defoliation of tomato plants by 42% compared to the control. An experimental compound, BAS 510 02, provided good control of target spot, reducing defoliation by 40% and increasing marketable yields by 34%. Harpin protein and Bacillis subtilis strain QST 713 were not effective for control of target spot. Keywords: target spot, Corynespora cassiicola, tomato, Lycopersicon esculentum, biocontrol agents, systemic acquired resistance, fungicides Journal: Plant Protection Science Pages: 81-88 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4855-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4855-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0001.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4855-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Gabriela Juhásová Author-Workplace-Name: 2 G ABRIELA JUHÁSOVÁ and JÁN PRASLIÈKA Author-Name: Ján Praslička Author-Workplace-Name: 2 G ABRIELA JUHÁSOVÁ and JÁN PRASLIÈKA Title: Occurrence and harmful effects of Gymnosporangium sabinae (Dicks.) Winter in Slovak Republc Abstract: The fungus Gymnosporangium sabinae (Dicks.) Winter was found only at three locations during the years 1965 to 1990 in Slovakia, they were the Arboretum at Mlyňany, Topoľčianky and Gbely (JUHÁSOVÁ 1973, 1975, 1998). We noticed a more frequent occurrence of this fungus during recent years. The life cycle, range of woody host plants and degree of damage on pear leaves at selected locations inSlovakia are described. Keywords: Gymnosporangium, Pyrus, Juniperus, woody host plants Journal: Plant Protection Science Pages: 89-93 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4856-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4856-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0002.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4856-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Anton Janitor Author-Workplace-Name: Institute of Experimental Phytopathology and Entomology, Slovak Academy of Sciences, Ivanka pri Dunaji, Slovak Republic Title: Growth of mycelia of phytopathogenic fungi after application of abscisic acid in in vitro conditions Abstract: The effect of abscisic acid (ABA) on growth of mycelia of the phytopathogenic fungi Schizophyllum commune, Monilia laxa and Monilia fructigena in in vitro conditions was studied. All concentrations ofABA (from 10-5 to 10-9M) stimulated mycelial growth of these fungi in Lilly-Barnet medium, when cultured for either 10 or 15 days. The results suggest thatABA secretion may be a factor of pathogenicity. Keywords: Schizophyllum commune, Monilia laxa, Monilia fructigena, mycelium growth, in vitro condition, abscisic acid Journal: Plant Protection Science Pages: 94-97 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4857-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4857-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0003.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4857-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Jaroslav Polák Author-Workplace-Name: Division of Plant Medicine - Research Institute of Crop Production, Prague-Ruzyně, Czech Republic Title: Distribution of Plum pox virus in the Czech Republic Abstract: Plum pox virus (PPV) is widely distributed in plums and myrobalans in western, central and easternBohemia, in north-western, central and north-easternMoravia of theCzechRepublic. In southernBohemia and partly also in southernMoravia there is only a low and sporadic incidence. Naturally growing plums and myrobalans, and plums growing along roads were found to be the main sources and reservoirs of PPV infection. This high incidence in naturally growing plum and myrobalan trees makes it impossible to grow plum cultivars that are susceptible to PPV; only resistant cultivars can be grown in this country. In blackthorns the occurrence of PPV is limited to the regions with high and long-term presence of the virus. Therefore, we can conclude that blackthorn is not the primary, but a secondary source of PPV. On the other hand, sweet and sour cherries at localities of central and westernBohemia, and of southernMoravia are PPV-free. Till now the presence of strain PPV-C was not proved in theCzechRepublic. Strain PPV-M was proved only in two plum and one damson trees. It was also found in one apricot and one peach orchard planted with imported nursery material. Strain PPV-M appears to have been introduced recently and is absent from or has a very low incidence in spontaneous PPV hosts, while the widespread and long-term dissemination of strain PPV-D may indicate that it originated in the Czech Republic. Keywords: plum pox virus, distribution, natural sources, PPV strains Journal: Plant Protection Science Pages: 98-101 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4859-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4859-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0004.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4859-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Zuzana Kučerová Author-Workplace-Name: Department of Stored-Product Pest Control - Research Institute of Crop Production, Prague-Ruzyně, Czech Republic Title: Weight losses of wheat grain caused by psocid infestation (Liposcelis bostrychophila: Liposcelididae: Psocoptera) Abstract: ocids are commonly found to be a persistent pest in structures of grain stores. Grain residues are potential pest reservoirs that serve as sources of grain re-infestation. Weight losses caused by psocids on broken wheat kernels were measured. Average weight loss of grain samples was 9.7% after 3 months of Liposcelis bostrychophila infestation. The weight losses were positively correlated with progeny production. Keywords: Liposcelis bostrychophila, Psocoptera, stored grain, weight losses Journal: Plant Protection Science Pages: 103-107 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4858-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4858-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0005.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4858-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Olalekan Oyeleke Banwo Author-Workplace-Name: Department of Crop Science and Production - Sokoine University of Agriculture, Morogoro, Tanzania Title: Management of major insect pests of rice in Tanzania - Review Abstract: The major insect pests on rice in Tanzania are listed and described. They are from five orders (Coleoptera, Diptera, Hemiptera, Lepidoptera and Orthoptera) and are discussed as stem borers, stem and root feeders, and leaf and panicle feeders. This review puts together the hitherto fragmented information available on the distribution, host range, biology/life-cycle and ecology, and the management measures of the insect pests of rice. Areas for future research are also mentioned. Keywords: insect pests, rice, management, Tanzania Journal: Plant Protection Science Pages: 108-113 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4860-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4860-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200203-0006.txt Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4860-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Otmar Vahala Author-Workplace-Name: 2 OTMAR VAHALA and JAN BEZDĚK Author-Name: Jan Bezděk Author-Workplace-Name: 2 OTMAR VAHALA and JAN BEZDĚK Title: The first record of Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) from the Czech Republic - New and Unusually Reports Journal: Plant Protection Science Pages: 114 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4861-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4861-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4861-PPS Template-Type: ReDIF-Article 1.0 Author-Name: L. Věchet Title: The 6th European conference on fungal genetics Journal: Plant Protection Science Pages: 115 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4862-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4862-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4862-PPS Template-Type: ReDIF-Article 1.0 Author-Name: J. Šedivý Title: Seventieth birthday of Ing. Vladimír Řehák, CSc. - Biographical Notice Journal: Plant Protection Science Pages: 116 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4863-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4863-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4863-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Aleš Lebeda Title: Jeng-Sheng HUANG - Plant Pathogenesis and Resistance. Biochemistry and Physiology of Plant-Microbe Interactions - Book Review Journal: Plant Protection Science Pages: 117 Volume: 38 Issue: 3 Year: 2002 DOI: 10.17221/4864-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/4864-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:38:y:2002:i:3:id:4864-PPS