34 УДК 632.78: 57.055 Георгий Игоревич Клобуков, инженер

632.78: 57.055
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,
, [email protected],
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,
Ȼɨɬɚɧɢɱɟɫɤɢɣ ɫɚɞ ɍɪɈ ɊȺɇ
ɊȿȺɅɂɁȺɐɂə ȼɋɉɕɒȿɄ ɆȺɋɋɈȼɈȽɈ ɊȺɁɆɇɈɀȿɇɂə
ɁȺɍɊȺɅɖɋɄɈɃ ɉɈɉɍɅəɐɂɂ ɇȿɉȺɊɇɈȽɈ ɒȿɅɄɈɉɊəȾȺ
LYMANTRIA DISPAR (L.) (LEPIDOPTERA, LYMANTRIIDAE)
ȼ ɊȺɁɅɂɑɇɕɏ ɅȿɋɈɊȺɋɌɂɌȿɅɖɇɕɏ ɍɋɅɈȼɂəɏ
ɇȺ ɋȿȼȿɊɇɈɃ ȽɊȺɇɂɐȿ ȺɊȿȺɅȺ
ȼɫɩɵɲɤɚ ɦɚɫɫɨɜɨɝɨ ɪɚɡɦɧɨɠɟɧɢɹ, ɧɟɩɚɪɧɵɣ ɲɟɥɤɨɩɪɹɞ, ɥɟɫɨɪɚɫɬɢɬɟɥɶɧɵɟ ɭɫɥɨɜɢɹ, ɞɟɮɨɥɢɚɰɢɹ.
Outbreak, gypsy moth, forest conditions, defoliation.
ȼɜɟɞɟɧɢɟ.
,
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ɪɟɡɤɨɦɭ ɦɧɨɝɨɤɪɚɬɧɨɦɭ ɭɜɟɥɢɱɟɧɢɸ ɱɢɫɥɟɧɧɨɫɬɢ ɨɫɨɛɟɣ ɩɨɩɭɥɹɰɢɢ ɢɥɢ ɝɪɭɩɩ ɩɨɩɭɥɹɰɢɣ
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39
Ȼɢɛɥɢɨɝɪɚɮɢɱɟɫɤɢɣ ɫɩɢɫɨɤ
1.
[
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, 1989. – 864 .
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, 1990. – 639 .
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. – 1976. – № 1. – . 92–93.
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.…
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, 1988. – . 28–29.
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10. Ʉɨɥɬɭɧɨɜ, ȿ.ȼ.
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11. Ƚɧɢɧɟɧɤɨ, ɘ.ɂ.
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2011 . –
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. – 2003. – № 1. – . 46–57.
12. Ʉɨɥɟɫɧɢɤɨɜ, Ȼ.ɉ.
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, 1974. – 176 .
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Ɇɚɬɟɪɢɚɥɵ ɢ ɦɟɬɨɞɵ.
40
, 2011. – . 144–146.
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, 1991. – . 128–143.
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:
: http://rp5.ru
Lymantria dispar (L.)
.
,
,
.
.
Statistica 6.0.
Microsoft Excel 2003
-
-
.
.
Ɋɟɡɭɥɶɬɚɬɵ ɢ ɨɛɫɭɠɞɟɧɢɟ.
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***
Introduction. In this paper is considered an effect of weather conditions on realization
of outbreaks of Trans-Urals gypsy moth Lymantria dispar (L.) population on the northern
border of outbreak areas. For more than half-century period of forest pathological observations in this area, the three gypsy moth outbreaks were registered, and two periods of high
density without noticeable defoliation of host plants were mentioned. However these periods
of high density coincided with outbreaks in the central part of this population.
Materials and methods. A comparative analysis of weather conditions during two last
realized outbreaks and two periods of high density was conducted. For the analysis of occurring outbreak field studies were conducted on permanent plots. On the basis of KamenskUralski weather station records hydrothermal conditions data were calculated. Literature
sources data were used in the analysis of previous outbreaks.
Results and discussion. Growths of gypsy moth population, which can be characterized
by dramatic increase in population density to outbreak level without forest-stands damage,
occurred under more contrast hydrothermal conditions. Outbreaks of pest resulted in moderate
or sever defoliation of forest stands took place under more stable hydrothermal conditions.
Analysis of population dynamics during the last gypsy moth outbreak, with prolonged duration of eruptive phase, showed more intense defoliation in forest stands under stable forestgrowing conditions, but outbreak progress in contrasting forest-growing conditions was determined by weather conditions during larvae growth.
Conclusions. Generally, analysis of hydrothermal conditions at the beginning and during outbreaks showed that outbreak level in contrasting forest-growing conditions depended
on weather conditions. In dry to periodically fresh forest-growing conditions outbreak occured under high precipitation, whereas in fresh to periodically wet conditions – under low
precipitation. In case of realized outbreaks defoliation was most severely under the fresh forest-growing conditions regardless of contrast range of hydrothermal conditions.
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