Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Karpun Natalia Nikolaevna

Scholastic degree


Academic rank

associated professor

Honorary rank

Organization, job position

Russian Research Institute of Floriculture and Subtropical Crops
   

Web site url

Email

nkolem@mail.ru


Articles count: 2

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ANALYZING THE COMPLEX OF HARMFUL ORGANISMS IN AGROCOENOSIS OF SOUTHERN FRUIT CROPS IN HUMID RUSSIAN SUBTROPICS

abstract 1301706024 issue 130 pp. 321 – 334 30.06.2017 ru 137
For the research period (2003-2016), 57 pest species and 46 pathogens were recorded on stone and pomaceous fruits in humid Russian subtropics, among which the representatives of the order Lepidoptera and the division Ascomycota predominate. The greatest number of the species was recorded on the apple tree - 35 pests and 25 pathogens, the smallest - on cherry and sweet cherry trees (13 and 10, respectively). 43,7 per cent of the species are polyphages, while the relative abundance of monophages among fungi is higher than among arthropods. The species with activity in the summer are prevalent. A group of species that are harmful in humid subtropical environments all year round (11 species of phytophages and 19 pathogens) was identified. Analyzing the changes in the species composition of the complex through the time, we can speak about the relative stability of the dominant species. The group of the typical dominant species of pests for almost a century has included Grapholita molesta Busck., G. funebrana Tr., Cydia pomonella L., Taphrina deformans (Berk.) Tul., Stigmina carpophila (Lév.) M.B. Ellis, Monilinia laxa (Aderh. et Ruhland) Honey, M. fructigena Honey, Podosphaera leucotricha (Ellis & Everh.) E.S. Salmon, Venturia carpophila E.E. Fisher and pear V. pyrina Aderh. Eriosoma lanigerum Hausm., Scolytus mali Bechst. and Tranzschelia prunispinosae (Pers.) Dietel are currently dropped out from the group of the dominants; Halyomorpha halys Stål, which is a new pest for Russia, was added. Groups of the species with sharp fluctuations in abundance or frequently encountered were distinguished
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DEPENDENCE OF PEACH LEAF CURL DEVELOPMENT ON WEATHER CONDITIONS IN RUSSIAN HUMID SUBTROPICS (APPLYING ASK-ANALYSIS)

abstract 1311707050 issue 131 pp. 572 – 594 29.09.2017 ru 21
In peach orchards of the Russian humid subtropics, leaf curl is the most dangerous and harmful disease. Due to the high degree of danger from the peach leaf curl, for the first time in this region the main task was to analyze peach leaf curl development on weather conditions. In order to solve the problem, it is proposed to apply a new innovative intellectual technology: automated system-cognitive analysis (ASK-analysis) and its software tools - the “Eidos” system. In order to build the model, based on our own observations and the experience of Russian and foreign colleagues, it was decided to use the following factors: the sum of temperatures above +4 ° C of the current year (for the period from January to April), the sum of temperatures above +4 ° C of the previous year (for the whole year), the sum of precipitation of the current year (for the period from January to April), the sum of precipitation of the previous year (for the whole year), the number of hours of infection (in the current year). It was established that such factors as the number of hours of infection, the sum of temperatures above +4 ° C in April and during the period from January to April, as well as the sum of precipitation in March and April, are the most important in the dynamics of peach leaf curl development and spread. High rates of leaf curl spread and development are caused by the number of hours of infection in the range of 1440 ... 2064 hours, as well as by low air temperatures in March and April (the sum of temperatures above +4 °C – 89,4-240,4° and 283,7-316,7°, respectively) and high air temperatures - in January and February (the sum of temperatures above +4 ° C – 155,3-259,6° and 243,5-280,1°, respectively)
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