| influence of strobilurin compounds on the development of puccinia horiana. | the effectiveness of 5 strobilurin fungicides: acanto 250 sc, amistar 250 sc, discus 500 wg, signum 33 wg, zato 50 wg and score 250 ec (triazole-standard) in the control of puccinia horiana was tested on chrysanthemum cv. melba blane. number of pustules per leaf was observed before treatment, as well as 2 and 4 weeks after treatment. additionally, after 4 weeks, their influence on plant growth, size of pustules and eventually phytotoxicity were assessed. plants were sprayed preventively and cura ... | 2007 | 18396835 |
| new and remarkable microfungi in north rhine westphalia, germany. | during our investigation on microfungi in north rhine westphalia in the years 2002 and 2003 we were able to collect and identify some new and rare species of microfungi as parasites and saprophytes on wild and ornamental plants. some of these like erysiphe elevata (burill.) u. braun & s. takamatsu comb. nov. [=microsphaera elevata burill.] on catalpa bignonioides walt., erysiphe syringae-japonicae (u. braun) u. braun & s. takamatsu [= microsphaera syringae-japonicae u. braun, m. aceris bunkina. ... | 2004 | 15756829 |
| phylogenetic relationships of puccinia horiana and other rust pathogens of chrysanthemum x morifolium based on rdna its sequence analysis. | isolates of the most important puccinia species that have been reported on chrysanthemum x morifolium were collected and the sequences of their ribosomal dna internal transcribed spacers its1 and its2 were determined and used as phylogenetic markers. the focus of this study was on puccinia horiana, due to its quarantine status and its impact in commercial chrysanthemum production. three technical adjustments were needed to reliably obtain the nucleotide sequences starting from fresh or dried sam ... | 2009 | 19248831 |
| molecular detection of puccinia horiana in chrysanthemum x morifolium through conventional and real-time pcr. | puccinia horiana henn. is a quarantine organism and one of the most important fungal pathogens of chrysanthemum x morifolium cultivars grown for cut flower or potted plant production (florist's chrysanthemum) in several regions of the world. highly specific primer pairs were identified for conventional, nested, and real-time pcr detection of p. horiana based on the specific and sensitive pcr amplification of selected regions in the internal transcribed spacers (its1 and its2) of the nuclear ribo ... | 2009 | 18940207 |
| molecular detection of puccinia horiana henn. the causal agent of chrysanthemum white rust. | chrysanthemum white rust is one of the most important foliar diseases of pot chrysanthemum and is a quarantine pathogen in many countries. under conducive environmental conditions, it has the potential to completely destroy susceptible cultivars. this is mainly avoided through frequent preventive fungicide applications. as part of a research program to develop a disease warning system, a molecular detection method was developed. to determine the nucleotide sequence of the nuclear rdna-its (inter ... | 2007 | 18396803 |
| falcon 460 ec in the control of foliage diseases of some ornamentals. | falcon 460 ec (167 g tebuconazole + 250 g spiroxamine + 43 g triadimenol per 1 dm3) at concentration 0.1%, applied as spray 4-times at 7-day intervals, was used in the control of sphaerotheca pannosa var. rosae on rose. after 4 weeks of plants protection effectiveness of the tested product was more than 92%. in the control of diplocarpon rosae, falcon 460 ec was applied when the first disease symptoms appeared on rose shrubs. the product application was repeated 9 times at 7-day intervals. effec ... | 2006 | 17390861 |
| tolylfluanide + tebuconazole in the control of some ornamental foliage diseases. | in the control of sphaerotheca pannosa var. rosae on rose tolylfluanide + tebuconazole (folicur multi 50 wg at concentration 0.1%) was used for spray 2 -times at 14-day-intervals or 4-times at 7-day-intervals. after 4 weeks of plants protection effectiveness of tested product was about 75%. in the control of diplocarpon rosae, the product was applied when first disease symptoms appeared on rose shrubs. application was repeated 5-times at 14-day-intervals or 9-times at 7-day-intervals. after 9 we ... | 2005 | 16637183 |
| chitosan (biochikol 020 pc) in the control of some ornamental foliage diseases. | chitosan, (biochikol 020 pc) a potential elicitor of plant defence and also an active inhibitor of fungal growth was used in experiments. the compound was used at concentrations 0.01 to 0.2% as a plant spray for rose protection against sphaerotheca pannosa var. rosae, peronospora sparsa and diplocarpon rosae, oidium chrysanthemi and puccinia horiana on chrysanthemum, against melampsora epitea on willow. myrothecium roridum on dieffenbachia and against lophodermium spp on scots pine. effectivenes ... | 2004 | 15756862 |