Browsing by Author "Crucean, Ștefan"

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Beneficiile fenomenelor sinergice în protecția plantelor cu aplicarea preparatelor biologice
(CEP USM, 2024) Voloșciuc, Leonid; Șcerbacova, Tatiana; Stîngaci, Aurelia; Pînzaru, Boris; Samoilova, Anna; Harciuc, Oleg; Zavtoni, Pantelimon; Lungu, Andrei; Crucean, Ștefan; Curiev, Loredana; Chistol, Marela
The biological protection of plants through various ecological approaches, the significant diversity of the means used (entomophagous organisms, biological preparations, biologically active substances) and their high biological and economic effectiveness, managed to attract substantial attention and gained a high degree of recognition both among the specialists of highly qualified, as well as agricultural producers, regardless of the form of ownership. The effectiveness of applied biological approaches and methods is also increased against the background of the increasing impact of pesticide media and the need to solve ecological problems. On the path to increasing economic efficiency, we have established the benefits of the simultaneous use of two or more biological means.
REOMOLOGAREA PREPARATELOR BIOLOGICE - CALE SIGURĂ DE SOLUȚIONARE A PROBLEMELOR DE PROTECȚIE A PLANTELOR PENTRU AGRICULTURA CONVENȚIONALĂ ȘI ECOLOGICĂ
(CEP USM, 2023) Voloșciuc, Leonid; Șcerbacova, Tatiana; Pînzaru, Boris; Stîngaci, Aurelia; Zavtoni, Panteleimon; Lungu, A.; Crucean, Ștefan
Large scale implementation of microbiological preparations ensures combat not only of the noxious insects but also of pathogen agents which cannot be efficiently combated by other means of biological control. The high efficiency of viral, bacterial and mycotic preparations for combating harmful insects was demonstrated in the main groups of agricultural crops which, being applied in optimal conditions against the corresponding phases. In the report the last performances in elaboration of the biotechnologies for production of the microbiological preparations, and improvement of their application technologies in the system for integrated plant protection of different groups of crops and determination of their place in these systems are much discussed. This report presents the results of state registration of 4 preparations (1 viral, 1 bacterial and 2 fungal) for combating of pest insects and phytopathogen agents.
TRICHODERMA SPECIES FOR PLANTS PROTECTION AGAINST ALTERNARIOIS
(CEP USM, 2022-09-29) Crucean, Ștefan; Șcerbacova, Tatiana; Lungu, Andrei
THE USE OF TRICHODERMA SPECIES AGAINST THE MAIN MYCOTIC PATHOGENS OF WALNUT
(CEP USM, 2023) Crucean, Ștefan; Șcerbacova, Tatiana; Voloșciuc, Leonid
Walnut plantations suffer from the impact caused by a number of pathogenic mycotic microorganisms. The most common pathogen fungus is Alternaria alternata and Fusarium poae. In the framework of the research, we aimed to determine the antagonistic activity of the strain Trichoderma harzianum CNMN - FD - 16 against the identified pathogens. Thus, on the 10th day the inhibition of the pathogen A. alternata by T. harzianum is 74%. On the same day, the inhibition of F. poae by T. harzianum is 73%. Trichoderma harzianum suppressed the colonies of A. alternata of 83% - this means 4 points, and the suppression of the colonies of F. poae was 69% - registering 3 points.