Abstract
The issues of improving the quality of application of fungal and bacterial biological products when applying the flow rates of working fluid up to 20 L/ha are considered. Along with the traditional methodology for assessing the quality of applying the working fluid of biological products to the treated surface, a new method for evaluating the effectiveness of applying biological products was also used, which consisted in selecting a certain area of the potato leaf surface by plant tiers 1 day after processing to determine the viability of fungal and bacterial products with low-volume (LV) and ultra-low-volume (ULV) spraying technologies. When applying the technology of spraying up to 10 L/ha, despite the high coating density, the cells of microorganisms fall on the leaf surface with an insufficient amount of liquid for their active reproduction on the treated surface. In addition, at low humidity, due to the rapid evaporation of droplets from the surface of the treated leaves, microorganisms do not multiply and are carried away by the wind when drying. The conducted research tests of the use of the mushroom biological product Trichocin at a consumption rate of 20 L/ha on test objects (potato plants of the Galla and Riviera varieties) using especially pure glycerin and the moisture-retaining food additive sorbitol as antivaporizers showed that their use ensured the viability of the cells of the biological product and the high rate of their reproduction on the treated surface due to moisture retention.
REFERENCES
Safronovskaya, G.M., Biopesticides: Perspective segment of the plant protection tools market, GlaAgronom, 2011.
Lysov, A.K., Khyutti, A.V., and Kornilov, T.V., Integrated protection when growing seed potatos, Zashch. Karantin Rast., 2020, no. 9, pp. 32–37.
Novikova, I.I., Polyfunctional biopreparats based on antagonistic bacteria is the basis of ecological safe system of plant protection against diseases, Inf. Byull. VPRS MOBB, 2007, no. 38, pp. 173–175.
GOST (State Standard) Plant protection. Terms and definitions, 2015.
Lysov, A.K., Sovremennye tekhnologii i sredstva mekhanizatsii dlya sistem integrirovannoi zashchity rastenii (Modern Technologies and Mechanization Tools for Systems of Integrated Plant Protection), Pushkin, St. Petersburg, 2019, vol. 164.
Gosudarstvennyi katalog pestitsidov i agrokhimikatov, razreshennykh dlya primeneniya na territorii RF (State Catalogue of Pesticides and Agrochemicals Allowed in the Russian Federation), Moscow, 2022.
Dokhov, M.P., Effect of curvature on evaporation of small liquid droplets, Fundament. Issled., 2006, no. 5, pp. 83–84. https://fundamental-research.ru/ru/article/view?id=5062.
Funding
This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
CONFLICT OF INTEREST
The authors of this work declare that they have no conflicts of interest.
ETHICS APPROVAL AND CONSENT TO PARTICIPATE
This work does not contain any studies involving human and animal subjects.
Additional information
Translated by M. Shulskaya
Publisher’s Note.
Allerton Press remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Lysov, A.K., Kornilov, T.V. & Krasnobaeva, I.L. Improvement of the Technology of Application of Biological Products for Plant Protection. Russ. Agricult. Sci. 49 (Suppl 1), S141–S147 (2023). https://doi.org/10.3103/S1068367423070327
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S1068367423070327