Plant Protection Science, 2009 (vol. 45), issue 3
The viral etiology of tomato yellow leaf curl disease - a review
Efrat Glick, Yael Levy, Yedidya Gafni
Plant Protect. Sci., 2009, 45(3):81-97 | DOI: 10.17221/26/2009-PPS 
Tomato yellow leaf curl disease (TYLCD) is one of the most devastating plant diseases in the world. As a result of its continuing rapid spread, it now afflicts more than 30 tomato growing countries in the Mediterranean basin, southern Asia, Africa, and South, Central and North America. The disease is caused by a group of viral species of the genus Begomovirus, family Geminiviridae (geminiviruses), referred to as Tomato yellow leaf curl virus (TYLCV). These are transmitted by an insect vector, the whitefly Bemisia tabaci, classified in the family Aleyrodidae. The genome of TYLCV generally consists of a single circular single-stranded...
Pathogenicity of three commercial products of entomopathogenic fungi, Beauveria bassiana, Metarhizum anisopilae and Lecanicillium lecanii against adults of olive fly, Bactrocera oleae (Gmelin) (Diptera: Tephritidae) in the laboratory
Mahmoud Farag Mahmoud
Plant Protect. Sci., 2009, 45(3):98-102 | DOI: 10.17221/34/2008-PPS
The pathogenicity of entomopathogenic fungi, Beauveria bassiana, Metarhizum anisopilae and Lecanicillium lecanii, was evaluated against adults of the olive fly Bactrocera oleae (Gmelin) under laboratory conditions by two ways, contact bioassays and oral bioassays. The results showed that oral bioassays caused higher mortality after four treatments than the used contact bioassays. Moreover, the virulence ofL. lecanii was higher than the virulence of B. bassiana and M. anisopilae in both ways of experiment. Lethal time (LT50) was shorter in oral bioassays than in contact bioassays in all...
The importance of monitoring the Ceutorhynchus pallidactylus female flight activity for the timing of insecticidal treatment
Marek Seidenglanz, Jana Poslušná, Eva Hrudová
Plant Protect. Sci., 2009, 45(3):103-112 | DOI: 10.17221/37/2008-PPS
The effects of two pyrethroids and one combination of organophosphate and pyrethroid (alpha-cypermethrin, etofenprox, chlorpyrifos + cypermethrin) on Ceutorhynchus pallidactylus (Marsham, 1802) (Coleoptera: Curculionidae) were tested under field conditions in the Czech Republic in 2006-2008. Significant differences in the effects of the compared insecticides on C. pallidactylus were recorded in the particular years (2006, 2007, 2008). It was less important and somewhat less complicated to establish the most suitable time for spraying in the case of the chlorpyrifos + cypermethrin combination in comparison with the pyrethroids...
The use of herbicides for weed control in direct wet-seeded rice (Oryza sativa L.) in rice production regions in the Republic of Macedonia
Zvonko PACANOSKI, Gordana GLATKOVA
Plant Protect. Sci., 2009, 45(3):113-118 | DOI: 10.17221/4/2008-PPS
Field trials were conducted in the Agricultural Research Institute for Rice, at two localities during 2005 and 2006. The objective of the study was to establish an appropriate weed management strategy for the effective control of weed flora in direct wet-seeded rice. Herbicide selectivity and influence on grain yield were also evaluated. The weed population in the trials was composed of 8 and 5 weed species in Kočani and Probištip locality, respectively. The most prevailing weeds in both localities were:Cyperus rotundus, Echinochloa crus-galli and Heteranthea limosa. The average weediness for both years was 456.8 weed stems per m2...
Monitoring of harmful insect species in urban conditions in selected model areas of Slovakia
Ján Kollár, Pavel Hrubík, Silvia Tkáčová
Plant Protect. Sci., 2009, 45(3):119-124 | DOI: 10.17221/4/2009-PPS
Research was carried out in 7 model urban areas of Slovakia (Nitra, Topoľčany, Komárno, Partizánske, Piešťany, Prievidza, Trnava) in 2005-2006. Research was aimed at phytophagous insects damaging allochthonous and autochthonous ornamental woody plants, growing in the urban environment. Because of the importance of alien (introduced) species in this country, we were also interested in this problem. Field research was realized minimally three times per vegetation period. We collected samples of damage symptoms, adult samples or larval samples. In total, we recorded 409 species and 5 varieties of phytophagous insects in the examined areas. From that number...