Tashkoski, Petre and Gveroska, Biljana and Stojkov, S. (2005) THE EFFECTS OF APLICATION OF METALAXYL-BASED CHEMICALS IN THE CONTROL OF Phytophthora parasitica var. nicotianae - THE CAUISING AGENT OF BLACK SHANK DISEASE ON TOBACCO. Tobacco, 55 (9-10). pp. 211-220. ISSN 0494-3244
Full text not available from this repository.Abstract
Black shank, caused by the fungus Phytophthora parasitica var. nicotianae is very destructive disease on tobacco, which appears in tobacco producing regions of Macedonia with various intensity of attack. At the moment, the disease is the most serious soil-borne disease of tobacco.
The aim of investigations was to estimate the effectiveness of various formulations of metalaxyl (available on the market in our country) for tobacco protection from black schank.
Investigations were made in field conditions, on the soil with natural infestation during 2000 and 2001. Four chemicals based on metalaxyl with various formulations (Ridomil G5, Ridomil MZ 72, Ridomil plus and Ridomil gold) were applied in a rate of 1,0; 2,0 and 3,0 kg/ha a. i. metalaxyl. The fungicide Ridomil G5 was applied before tobacco planting by incorporation of granules, and the others were applied after planting, by watering of prepared solution of the chemical (100 ml per plant).
During vegetation, evaluation was made on the occurence and intensity of attack, and, based on the results, the effectiveness of fungicides was estimated.
All of the investigated chemicals applied in a rate of 3 kg/ha a.i. showed higher effectiveness in protection of tobacco than chemicals applied in a rate of 2 kg/ha.
Based on the results of investigations, it could be stated that metalaxyl-based chemicals in a rate of 2-3 kg/ha a.i., applied into soil before or after tobacco planting, allow better control of black shank disease on tobacco.
| Item Type: | Article |
|---|---|
| Subjects: | Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries |
| Divisions: | Scientific Tobacco Institute |
| Depositing User: | Ms Biljana Jordanoska |
| Date Deposited: | 03 Nov 2016 20:20 |
| Last Modified: | 03 Nov 2016 20:20 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/384 |
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