GUIDELINE ON TEST METHODS FOR EVALUATING THE SIDE-EFFECTS OF PLANT PROTECTION PRODUCTS ON HONEYBEES

EPPO Bulletin ◽  
1992 ◽  
Vol 22 (2) ◽  
pp. 203-215 ◽  
2004 ◽  
Vol 128 (9-10) ◽  
pp. 593-599 ◽  
Author(s):  
A. I. Youssef ◽  
F. N. Nasr ◽  
S. S. Stefanos ◽  
S. S. A. Elkhair ◽  
W. A. Shehata ◽  
...  

2020 ◽  
Vol 4 (141) ◽  
pp. 47-53
Author(s):  
ROMAN POTEMKIN ◽  
◽  
ALEKSEY SVIRIDOV

Modern application of chemical plant protection products and liquid mineral fertilizers requires a comprehensive approach in compliance with all agricultural standards. Under-watering or overdosing of the introduced fertilizers can adversely affect the yield. Sprayers used on agricultural machines must be carefully selected and tested. (Research purpose) The research purpose is in analyzing the features of testing sprayers used on agricultural machines. (Materials and methods) The article presents reviewed data on the use of various methods of sprayer testing. Authors studied open sources as research materials and conducted a comparative analysis of the information. (Results and discussion) The article describes successive stages and test methods. The initial stage of testing sprayers is to determine the size (diameter) of drops at a certain pressure (1.5-3 bar) of the pump system. The liquid demolition directly depends on the size of the drop. Authors used the method of distribution of the solution into measuring cups on specialized test benches to determine the discharge rate. The article presents an example of the resulting table for testing sprayers.


2019 ◽  
pp. 6-11
Author(s):  
I. Storchous ◽  
Yu. Stefkivska

Goal. Analysis and synthesis of research results regarding the beneficial and negative side effects of ammonium glufosinate and thiazine herbicides on microorganisms. Methods. System-analytical, abstract-logical, empirical. Results. Information on the side effects of herbicides with the content of the active substance glufosinate ammonium and derivatives of thiazine herbicides is given. One of the side effects of herbicides that attracts attention is their biological activity. The biological activity of herbicides goes beyond the effects on target organisms and, thus, herbicides can influence the plant-pathogen interaction through their effect on the causative agent or on the surrounding soil microorganisms, including symbiotic relationships. As a side effect, both a decrease and an increase in diseases caused by phytopathogens that affect leaves, stems or roots are established. However, in some cases, the results obtained in in vitro experiments differed from the results obtained in field conditions in vivo or on a host plant. The phenomenon of the manifestation of side effects of herbicides was first discovered in the early 1940s and began to be studied in more detail since 1960. Conclusions. Generalized information about the history, studies of the side effects of herbicides on different cultures and in different conditions in the world. It is important that such effects are not fully studied, and these mechanisms attract the attention of scientists for their further research. Future studies are planned to be carried out using high-precision methods, such as chip-based technologies, to study all the mechanisms involved in the pathogen-plant interaction, which are modulated by herbicides. This trilateral relationship today is studied as a molecular and biochemical cross-linkage between a plant and a pathogen, a plant and a herbicide, as well as a pathogen and a herbicide. Active studies by foreign scientists of the side effects of herbicides show that in Ukraine, as an agrarian state, it is necessary to purposefully investigate the effect of herbicides on soil microorganisms and pathogens to optimize the use of plant protection products in agricultural production.


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