Scientific research was conducted from 2020 to 2022 under laboratory conditions and on cabbage plantations (plot and industrial). It has been confirmed that cabbage plantations in the Lukashin community of the Armavir region had a high population of cabbage moth caterpillars. Local bacterial cultural liquids of Bacillus thuringiensis species tested separately and in combination with sublethal doses of insecticides showed high biological effectiveness against phytophagous caterpillars of ages I-III, which does not differ significantly from the reference indicator: commercial bacterial preparation Lepidocide. According to the results of laboratory examination of the bodies of the deceased larvae, it was found out that the decomposing body tissues of the pest larvae were filled with insecticidal sporocrystalline components, which confirmed that the death of the phytophagous larvae is the result of the effect of the tested insecticides. When struggling against cabbage moth caterpillars, it is proposed to use bacterial culture fluids alone with a lethal dose of 300 million spores/ml and in combinations with their sub-lethal quantity (titer of 150 million spores/ml) with the chemical insecticide calypso (0.033 % suspension).

Brucellosis is endemic in Armenia. Test slaughtering is used to fight Brucellosis in large and small ruminants. Cross-contamination among the various types of animals with various types of causative agents may contribute to the permanent existence of the epizootic chain. A study is being conducted to determine whether brucellosis is present among stray dogs in Yerevan (Capital of RA). The Rose Bengal test (RBT), serum agglutination test (SAT), and indirect and competitive ELISA tests were performed on 384 blood samples from stray dogs in Yerevan. The competitive ELISA detects only specific antibodies against B. abortus, B. melitensis, and B. suis and differentiates the Brucella 19 strain. According to the diagnostic algorithm for final diagnosis, positive samples by RBT must be confirmed by two other tests. Out of 384 samples tested by RBT, 17 (4.4 %) were positive. Out of 384 samples, 11 (2.9 %) were positive by SAT, 9 samples (2.3 %) tested positive by indirect ELISA, and 16 samples (4.2 %) tested positive by competitive ELISA. We have shown the presence of Brucella spp. among stray dogs in Yerevan. It is necessary to implement additional studies among dog (particularly shepherd dogs) populations in marzes with a higher prevalence of Brucellosis. These additional results will provide an opportunity to evaluate the role of dogs in ensuring a stable epizootic chain of Brucellosis among agricultural animals. They will contribute to a strategy design for preventing the spread of disease.

The study aimed to assess 58 veterinary laboratory specialists' knowledge, attitudes, and practices concerning brucellosis across all regional (Marz) and central laboratories (Reference Laboratory for Especially Dangerous Pathogens). The survey was developed to assess the knowledge of lab specialists and identify gaps in laboratory activities that may have an impact on test results. Questions covered the following topics: a) disease epidemiology, b) sample conditions, c) biosafety and biosecurity, and d) laboratory tests, requirements, and indicators. According to the results, 45 % of respondents are 51 years old or older, most (26 respondents/45 %) have six to ten years of laboratory experience, and 20 respondents (35 %) have 21 years and more experience. Eleven people (19 %) had not received professional training. At the same time, 90 % and more correct answers were given by respondents who had passed training during the last year. In the last year, a person took training but did not answer 90% of the questions correctly. Most part (86 %) of respondents were not familiar with lab test indicators (sensitivity, specificity, accuracy, etc.) and 46 (79 %) were unaware of screening and confirmation tests requirements. Only 55 % (32 people) knew that one serological test was insufficient to make a final diagnosis, but 24 (75 %) of those respondents could not justify that. This study shows that it is necessary to review the current mechanisms for the preparation of laboratory specialists. This will indirectly impact an accurate assessment of the epidemiological situation of brucellosis in Armenia.

Pig breeding is considered one of the most significant directions of livestock breeding both worldwide and in the Republic of Armenia. Various types of antibiotic drugs are used in animal husbandry, particularly in pig breeding, to promote animal growth and development. The current challenge in agriculture is antibiotic resistance, which can be caused by improper use of antibiotics in animal husbandry. In the study, 50 biological samples (feces samples) of 50 pigs were collected from three regions in the Republic of Armenia. We found Salmonella spp. in 6 (12.0 %) of 50 pig samples studied by us and in 41 (82.0 %) bacteria belonging to E-coli groups was detected. The detected bacteria belonging to the Salmonella group showed absolute 100 % resistance to 7 out of 16 antibiotics. The detected E. coli bacteria showed 100 % resistance to 7 out of 16 antibiotic types. When carrying out antibiotic treatment against salmonellosis and colibacteriosis diseases in pigs, The results of the research should be taken into account and the use of antibiotics of this type should be excluded.

In the field of agro-industry, the most attention is paid to the development of eco-friendly technologies, which allow to improve the efficiency of natural resources in sustainable agriculture, preserving the environment, as well as to obtain high-quality, environmentally friendly, and safe products. Currently, organic viticulture and biodynamic winemaking are rapidly developing and demanding areas of winemaking. In light of these factors, it makes sense to cultivate grape varieties that are resistant to cold, fungal diseases, and pests (in particular, the Charentsi variety). Under different conditions, the microbiological state, physicochemical parameters, organic acids content, and color characteristics of Charentsi grapes were examined. We studied the physicochemical parameters of wines made by using different methods. The possibility of making ecologically clean rosé wines from this grape variety was assessed, using it as a raw material.

“Argitos Agro” is a plant growth stimulant with fungicidal effect and when disinfecting cucumber seeds and applying during the growing season, it does not have a significant effect on the development of powdery mildew disease. The preparation, indeed, has a stimulating effect on the germination of cucumber seeds, the growth of seedlings and plants, accelerates flowering, increases the yield and improves its quality indicators.

A task was set to reveal the effect of water-soluble fertilizers of new composition and quality on the content of available nutrients at different depths of the soil, depending on the movement of the irrigation water, irrigation time, as well as its effect on the growth, yielding capacity and the quality of fruit in commercial size walnut orchards. The research has shown that the movement of nutrients in the soil is completely dependent on the movement of water when applying water-soluble complex fertilizers with drip irrigation. Therefore, the amount of the water should be adjusted so that the nutrients are available to the plant’s root system at all depths, improving the growth, and increasing the content of the basic nutrients in the leaves.Fertilizers with less water solubility are mainly preserved at a 0 cm - 30 cm depth. When the root system grows and spreads to the inter-row spaces, it is appropriate to periodically fertilize also the inter-row spacing by the furrow method.

A novel recipe and production technology for sugar confectionery, specifically marmalade, has been developed through scientific and experimental research. The findings affirm that pumpkin and sea buckthorn purees can effectively substitute traditional plum and apple purees, eliminating the need for various coloring agents. The suggested product represents a domestically-produced marmalade, particularly in the food market, and this endeavor will play a crucial role in advancing both marmalade production and the development of the raw material base.

Over the recent 20 years, for the first time, the disease of swine perfringens has been studied in the Aragatsotn region of RA and related epidemiological analysis has been conducted. To identify A, C, and D serological types of Cl. Perfringens and special diagnostic sera produced by the Kursk biofactory were used. It has been found that the main serological infection type of swine perfringens is C and sometimes A and D subtypes. In the pig breeding farms of the mentioned region about 6887 heads of swine (aging from 3 days to 1 year old) were registered. Per the research results, about 45 out of 72 communities were recognized as insecure/vulnerable. As to the above-stated animal number, it should be mentioned, that 1722 heads of swine fell down, whereas 5510 were considered bacteria carriers. Thus, as a result of epidemiological analysis, the morbidity (bacteria carrying rate), mortality, insecurity/vulnerability, and focality coefficients (indicators) have made 0.80 (80 %), 0.25 (25 %), 0.63 (63 %), and 122 animals, respectively.

Potato peeling machines do not provide the necessary technological quality of the tuber cleaning process. The shovel separation system operating in heavy ground conditions must be equipped with a dynamic shredder of tubers. The driving mechanism of grinding and pipelining, operating on a dynamic principle, is located in front of the goiter of the potato peeling machine and covers the entire profile of the tuber. The ground chips cut from the tuber should be thrown into the aisle to reduce the amount of soil in the tuber-soil mass, the most purified tuber mass from the soil should be fed into the filter elevator. The analysis of the calculated value of the angle of installation of the knife shows that the optimal position of the knife in the range of rotation angles of the rotor depends only on the kinematic parameter. When justifying the parameters of a large-sized conveyor, determining the optimal value of the angle of installation of the knife is necessary, but still insufficient condition. A sufficient condition requires justification of the second parameter of the knife installation to ensure the simultaneous fulfillment of two conditions: cutting chips with an inclined slide and its ejection into the interline space. The installation condition of the knife is provided by sliding cutting, taking into account that it is necessary that the Earth chips be dumped into the aisle after cutting from the tuberous soil, to reduce the amount of soil in the tuberous-soil mass, a more purified tuberous mass from the soil is fed into the filter elevator.