Plant Protection Science, 2002 (vol. 38), issue 3
Control of target spot of tomato with fungicides, systemic acquired resistance activators, and a biocontrol agent
Ken Pernezny, Peter Stoffella, Janice Collins, Amanda Carroll, Audrey Beaney
Plant Protect. Sci., 2002, 38(3):81-88 | DOI: 10.17221/4855-PPS 
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...
Occurrence and harmful effects of Gymnosporangium sabinae (Dicks.) Winter in Slovak Republc
Gabriela Juhásová, Ján Praslička
Plant Protect. Sci., 2002, 38(3):89-93 | DOI: 10.17221/4856-PPS
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.
Growth of mycelia of phytopathogenic fungi after application of abscisic acid in in vitro conditions
Anton Janitor
Plant Protect. Sci., 2002, 38(3):94-97 | DOI: 10.17221/4857-PPS
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.
Distribution of Plum pox virus in the Czech Republic
Jaroslav Polák
Plant Protect. Sci., 2002, 38(3):98-101 | DOI: 10.17221/4859-PPS
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...
Weight losses of wheat grain caused by psocid infestation (Liposcelis bostrychophila: Liposcelididae: Psocoptera)
Zuzana Kučerová
Plant Protect. Sci., 2002, 38(3):103-107 | DOI: 10.17221/4858-PPS
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.
Management of major insect pests of rice in Tanzania - Review
Olalekan Oyeleke Banwo
Plant Protect. Sci., 2002, 38(3):108-113 | DOI: 10.17221/4860-PPS
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.
The first record of Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) from the Czech Republic - New and Unusually Reports
Otmar Vahala, Jan Bezděk
Plant Protect. Sci., 2002, 38(3):114 | DOI: 10.17221/4861-PPS
The 6th European conference on fungal genetics
L. Věchet
Plant Protect. Sci., 2002, 38(3):115 | DOI: 10.17221/4862-PPS
Seventieth birthday of Ing. Vladimír Řehák, CSc. - Biographical Notice
J. Šedivý
Plant Protect. Sci., 2002, 38(3):116 | DOI: 10.17221/4863-PPS
Jeng-Sheng HUANG - Plant Pathogenesis and Resistance. Biochemistry and Physiology of Plant-Microbe Interactions - Book Review
Aleš Lebeda
Plant Protect. Sci., 2002, 38(3):117 | DOI: 10.17221/4864-PPS