DOI 10.25732/PM.2020.116.4.001

The grain weevil (Sitophilus Granarius linnaeus, 1758) and its medical and economic significance

Gevorkyan I. S.

Scientific Research Disifectology Institute. Moscow 117246, Russian Federation

The grain weevil (Sitophilus granarius Linnaeus, 1758) is one of the oldest and most dangerous pests of agricultural and food products. In addition, grain weevil is dangerous to human health. As an effective way to control this pest, the use of insecticides and ionizing radiation recommended.

Keywords: grain weevil, pests of grain stocks, allergies, infections, human health, insecticide, ionizing radiation.

page 5-11

DOI 10.25732/PM.2020.116.4.002

History of the use of insecticide active ingredients. Part 4. Synthetic organic compounds (amidinohydrazones, sulfofluoroamides, phenylpyrazoles, avermectins, spinosyns)

S. A. Roslavceva, professor, Scientific Research Disifectology Institute.

Moscow 117246, Russian Federation

Summary. History of the use of substances and compounds as insecticides and larvicides for agricultural and medical disinsection. Part 4. Describes synthetic organic compounds: (amidinohydrazone, sulfofluoroamides, phenylpyrazole, avermectins, spinosyns) and their physico-chemical, insecticidal and toxicological characteristics.

Keywords: amidinohydrazone, sulfofluoroamides, phenylpyrazoles, avermectins, spinosyns.

page 12-17

DOI  10.25732/PM.2020.116.4.003

Pesticides use for control of vectors and host-resevoirs of tropical infections in the Republic of Guinea

O. K. Konstantinov, S. K. Kamara, M. Y. Boiro, M. C. Balde, A. V. Gavrilov

The pesticides survey for control of transmissible infections vectors and home insects was conducted in humid tropical climate of the Republic of Guinea. The following insecticides: alfacin, biocemal, tetracin, cypromal, fuiry, ultra – gel, baytroide and actellik, and rodenticides: varat, rattidion, ALT were tested. Alfacin, tetracin, baytroide and fuiry were efficient against blood suckling mosquitoes. For home bags control in the villages the phosphor organic insecticides as cypromal, actellik and biocemal were efficient, but 100% efficacy was not achieved. All insecticides were efficient against cockroaches, termites, and ants as well. For synanthrope rodents control (Rattus rattus, Mus sp., Matomys sp.) the use of varat and ALT was efficient. As to rattidion baits the rodents did not touch them. The use of insecticides for mosquitoes control was rental. The control measures against home bags in the country weren’t rental. It would be more economic there the treatments against agriculture pests. In general the pesticide market in Guinea is perspective for Russian firms but for definitive conclusions it would be necessary its detail economic study.

Keywords: pesticides, arthropods, rodents, control, Republic of Guinea.

page 18 - 25

DOI  10.25732/PM.2020.116.4.004

Aspects of production and control of microcapsulated insecticide compositions. II. Analytical determination of insecticidal substances by chromatographic methods

Nosikova L.A., Ph.D. (Chemistry), senior researcher A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences(IPCE RAS), (31, Leninsky Pr, Moscow, 119991, Russia); associate professor M. V. Lomonosov Institute of Fine Chemical Technologies, Russia Technological University (86, Vernadskogo Pr., Moscow, 119571, Russia), E-mail: nosikova_lyubov@mail.ru., ResearcherID 679715. ORCID ID 0000-0002-4144-5343.

Kochetov A.N., Ph.D. (Chemistry), Senior Lecturer, A.N. Reformatsky Chair of Inorganic Chemistry,

M. V. Lomonosov Institute of Fine Chemical Technologies; MIREA – Russian Technological University (86, Vernadskogo Pr., Moscow 119571, Russia), E-mail: kochchem@mail.ru., ResearcherID: 213376. ORCID ID 0000-0002-1911-1718.

The possibilities of using the HPLC and GC method in determining complex multicomponent mixtures of insecticidal substances in commercial compositions produced using microencapsulation technology are considered. Often, when analyzing compositions that include representatives of different classes of insecticides, it is necessary to combine both methods (GC and HPLC), or, alternatively, use expensive massselective detection types. Additionally, options for evaluating the content of substances in solutions of insecticidal microencapsulated agents were tested, various combinations of sample preparation and analytical determination stages were carried out. The content of active substances is an important factor in determining the suitability of the agent (working solutions), while representatives of the main classes of insecticidal substances (pyrethroids, organo-phosphorus derivatives, neonicotinoids, phenylpyramolones, carbamates and pyrroles) were considered. The possibilities and limits of group determination using trivial chromatographic equipment were determined using model solutions.

Keywords: microencapsulated agents, insecticidal substances, content determination, pest control, active substance, pyrethroids, organophosphorus derivatives, neonicotinoids, phenylpyrazolones, carbamates, pyrroles, RP HPLC, GC.

page 26 - 37