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FUNGICIDES AND BIOTECHNICAL AGENTS IN THE PROTECTION OF HEATHERS AGAINST Pestalotiopsis sydowiana AND THEIR INFLUENCE ON PLANT GROWTH.
- Source :
- Acta Scientiarum Polonorum. Hortorum Cultus; Mar/Apr2023, Vol. 22 Issue 2, p61-72, 12p
- Publication Year :
- 2023
-
Abstract
- In the protection of heathers against shoot dieback caused by Pestalotiopsis sydowiana, the highest percentage effectiveness of 92.6% to 100% was found on plants sprayed 12 times every 7 days with the active substances: iprodione, pyraclostrobin + boscalid and trifloxystrobin and with the biotechnical agents containing: microcrystalline chitosan and extract from grapefruit seed and pulp, with an efficacy of 76.9% to 100%. The active substances like chlorothalonil, fluopyram + trifloxystrobin, iprodione, pyraclostrobin + boscalid, as well as microcrystalline chitosan and extract from grapefruit seed and pulp also stimulated plant growth. Heather plants sprayed with these agents and also those sprayed with cyprodinil + fludioxonil, trifloxystrobin and potassium carbonate + monopotassium phosphate were found to produce the highest number of new shoots. An increase in the fresh weight of the aboveground parts of the heather plants of more than 55.7% compared with the control plants was found after spraying the plants with the active substances such as: fluopyram + trifloxystrobin, iprodione, pyraclostrobin + boscalid, cyprodinil + fludioxonil, trifloxystrobin and with the biotechnological agents containing microcrystalline chitosan extract from grapefruit seed and pulp, and potassium carbonate + monopotassium phosphate. Similarly, the highest average dry weight of the aboveground parts was found after the application of these agents. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16440692
- Volume :
- 22
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Acta Scientiarum Polonorum. Hortorum Cultus
- Publication Type :
- Academic Journal
- Accession number :
- 163444694
- Full Text :
- https://doi.org/10.24326/asphc.2023.4492