595.771: 630.443 ȼɚɫɢɥɢɣ ɂɜɚɧɨɜɢɱ ɉɨɧɨɦɚɪɟɜ, , v_i_ponomarev@mail.ru Ɉɥɶɝɚ ȼɥɚɞɢɦɢɪɨɜɧɚ Ɍɨɥɤɚɱ, , tolkach_o_v@mail.ru Ƚɟɨɪɝɢɣ ɂɝɨɪɟɜɢɱ Ʉɥɨɛɭɤɨɜ, klobukov_g_i@mail.ru ɋȼəɁɖ ȾȿɎɈɅɂȺɐɂɂ ȻȿɊȿɁɈȼɕɏ ȾɊȿȼɈɋɌɈȿȼ ɇȿɉȺɊɇɕɆ ɒȿɅɄɈɉɊəȾɈɆ (LYMANTRIA DISPAR L.) ɋ ɁȺȻɈɅȿȼȺȿɆɈɋɌɖɘ ȻȺɄɌȿɊɂȺɅɖɇɈɃ ȼɈȾəɇɄɈɃ Ⱦɟɮɨɥɢɚɰɢɹ, ɜɫɩɵɲɤɢ ɦɚɫɫɨɜɨɝɨ ɪɚɡɦɧɨɠɟɧɢɹ, ɛɟɪɟɡɨɜɵɟ ɞɪɟɜɨɫɬɨɢ, ɛɚɤɬɟɪɢɚɥɶɧɵɟ ɛɨɥɟɡɧɢ, Erwinia, Pseudomonas. Defoliation, outbreak, birch stands, bacterial diseases, Erwinia, Pseudomonas. , . , . , - , [1]. , , . 70- . XX . , [2]. , , , 70 %. teriaceae ( 74 , Erwinia) Pseudomonadaceae ( EnterobacPseudomonas). E. multivora Scz.-Parf. [2], . , – , Erwinia, , [3]. - - . , (Lymantria dis) [2]. , . , par L.) - ( , , Ɇɚɬɟɪɢɚɥɵ ɢ ɦɟɬɨɞɵ. , , 2005 2011 . ( ) (75 % 2006, 2009 2010 (75 % ) ( ). – . ) . 2000 . , [4]. (Betula pendula Roth) (Betula alba L.), VII , , , ), . – 22–28 . - 1986-87 II. ( .( ) , ( , ). , - . - . . . . 75 2005–2007, 2009–2011 15 , 2006 . . . , 75 %, 2011 . 2009 2007 ( 100 %. 2009 2011 . 2005 . 2008 , , . 50 %) – - . (%). , . 50 %, - . Excel MS Office. Statistica 6.0. Ɋɟɡɭɥɶɬɚɬɵ ɢ ɨɛɫɭɠɞɟɧɢɟ. , 2005 . 16 % ( ), 0,5 , 200 , – 24 %. (36 - ) , . 39 %, 2,5 66 %, . , . . 76 – 15,3; - 2,75 Erwinia. 2006 . 19 ; , . – 14,3 . 15 , 2005 . (49 100 ). , - . . 40 - ( ), – ( , ). ( , ). - , 70 % (10 ), . . - 2005 . . Pseudomonas. Erwinia, - : , . 2007 . . 14,8 , – . 15 . 33 % ( - – 19, 77 , – 18,4 . . 2007 ., , ) 12 %. - 2007 . . (47 ( 39 % , ), , 2006 . - ). . 2006 . [5]. , - . 2007 – 2008 . . 2009 . 77 200 2009 . 100 % ( 2007 . 150 100 %) 31 % (92 %) ( – 50–70 %. , - 62 %. ). 2010 . . 2010 . 90 %. ɂɡɦɟɧɟɧɢɟ ɜ ɢɧɬɟɧɫɢɜɧɨɫɬɢ ɩɨɪɚɠɟɧɢɹ ɤɫɢɥɟɦɵ ɢ ɞɨɥɢ ɞɟɪɟɜɶɟɜ, ɩɨɞɜɟɪɠɟɧɧɵɯ ɡɚɛɨɥɟɜɚɧɢɸ ɛɚɤɬɟɪɢɚɥɶɧɨɣ ɜɨɞɹɧɤɨɣ ɜ 2009 ɢ 2010 ɝɝ. ɧɚ ɩɪɨɛɧɵɯ ɩɥɨɳɚɞɹɯ ɜ ɪɚɡɧɵɯ ɥɟɫɨɪɚɫɬɢɬɟɥɶɧɵɯ ɭɫɥɨɜɢɹɯ (Ʉɚɦɟɧɫɤ–ɍɪɚɥɶɫɤɢɣ ɪɚɣɨɧ, ɋɜɟɪɞɥɨɜɫɤɚɹ ɨɛɥɚɫɬɶ) - , ,% 2009 2010 2009 2010 2009 20 20 65 95 38 ± 16 65 100 62 90 47 ± 15 ,% 2009–2010 - , %* 2010 32 ± 22 b 40 ± 19 c . 80 100 . ) , 80 100 – 29 19 31 – 89 84 87 80 100 – – 24 91 – – 95 85 – – 39 ± 17 c 39 ± 20 c 30 – 21 – 50 – 31 ± 16 b – 20 – 55 – 21 ± 11 ( ) 2009–2010 , ( 2010 .( – 37 ± 16 bc 46 ± 17 44 ± 17 c ) ( ) - * . 78 . 2010 . . , . , ( ), - 30 %. 2010 ., 2009 ., , 5–10 %. 2005 . ( ) . - , . , - , . 2009 2010 . 2010 - .– . . 2010 . 2010 . , . . 100 % , 2009 . . – 47 %. , 2010 . 100 90 , 2009 61,5 % - 40 %. 2009 ., 2010 . , 100 % . , 80 % , 79 – - , . . 2009 . 13 . , . 25 %. - - 30 % 50–60 %. 2010 . 100 % . 15 % - , . 2010 . . 2010 . - . 41 % , . , , , 2010 . - . , [6]. , . 2009 . , ( . 1). 2009 . , 2010 . ( 2009 . , 80 ( . 3). , , , . 2). . 2010 . , , - ,% 30 20 В 10 0 28.07.2009 . 13.08.2009 . 20.08.2009 . Д . 1. , ,% ( , 2009 .: )– ;( )– 30 20 В 10 0 28.07.2009 . 13.08.2009 . 20.08.2009 . Д . 2. 2009 ., 2009 ., 2010 .: ( )– ;( )– 81 ,% 30 20 В 10 0 22.07.2010 . 29.07.2010 . 09.08.2010 . Д . 3. , (2010 .): ( )– ;( )– , 2010 ., , - , , , .). , ( , - ( ) ( – , ). ( 95 % 82 – ). . - ȼɵɜɨɞɵ. , , - . , . - 95 % . . , . 12- -4-1035. Ȼɢɛɥɢɨɝɪɚɮɢɱɟɫɤɢɣ ɫɩɢɫɨɤ 1. [ , . . ]/ . . // : : 2. [ .– 3. Ш .№3 .– - , 2003. – . 98–101. , Ю.И. : ]/ . . , . . - , 2006. – 18 . , . . [ , 2008. – 117 . , . . .– : 4. , . . [ ]/ . . , . . , . . , 1974. – 176 . 5. , . . [ ]/ . . . – .: . ., 2006. – 742 . 6. , .И. [ ]/ . . , . . // . – 2011. – № 2. – . 13–18. ]/ . . .– : , . . - , . . - 83 . , - . , . *** Monitoring the development of bacterial wetwood among birch trees before gypsy moth outbreak and during this outbreak allow to determine a quantitative contribution of this factor in change of the pathological situation in birch forest stands of northern pre-forest steppe. Found that the damage of trees by bacterial wetwood disease has no influence on degree of defoliation. More significant the correlation of tree damage by bacterial wetwood not with the defoliation, but with the forest site conditions of forest growth and weather conditions during the subsequent refoliation. 84