| Issue |
BIO Web Conf.
Volume 34, 2021
International Scientific Conference “Biologization of the Intensification Processes in Horticulture and Viticulture” (BIOLOGIZATION 2021)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 5 | |
| Section | Biologized Technologies of Plant Protection for Optimization of the Phytosanitary and Production Potential of Perennial Agrocenoses | |
| DOI | https://doi.org/10.1051/bioconf/20213404004 | |
| Published online | 10 September 2021 | |
Difenoconazole-based fungicides for orchard protection
1 Federal State Budgetary “All-Russian Scientific Research Institute of Plant Protection”, (VIZR) 3 h.r. Podbelskogo, St. Petersburg, 196608, Russia
2 LLC “Innovative Plant Protection Center”, 20 lit. А str. Pyshkinskay, St. Petersburg, 196607, Russia
3 Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», 39 str. 40 Let Pobedy, Krasnodar, 350901, Russia
* Corresponding author: ldg@iczr.ru
A comparative assessment of the effectiveness of 4 difenoconazole-based fungicides in the fight against apple scab in the Krasnodar region and the Rostov Region for several years has been carried out. The preparations Sercadis Plus, SC were applicated at a rate of application of 1.2 l/ha; Embrelia, SC – 1.5 l/ha; Cidely Top, DС – 0.7 l/ha and Tersel, WG – 2.5 kg/ha three times, against different infectious backgrounds, starting with the “pink bud” phenophase (the end of flowering stage). The following apple cultivars were used: Idared, Champion and Golden Delicious. Research has shown that all studied fungicides significantly reduced the scab infestation of apple leaves and fruits. This resulted in obtaining additional yield in the range of 12.6-46.0%. The fruit grade was high after the treatments: 93.0-100% in the Krasnodar region and 81.5-91.5% in the Rostov Region, while in the nil treatment the percentages of standard products were 68.5% and 44.6%, respectively. According to the toxic load indicator, difenoconazole-based fungicides, such as Embrelia, SC (11.6 LD50 per hectare), were less dangerous for the fruit cenosis.
© The Authors, published by EDP Sciences, 2021
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