1、。6 9 7。7 0.75 g/m2 150 g 0.50 mL/m2 6 9 98%35.00 g/m2。0.75 g/m2、0.50 mL/m2、98%35.00 g/m2、0.50 mL/m2、72%2 000、50%0.50 g/m2、46%0.50 g/m2。S435.32 A 2097-2172 2023 07-0669-05doi 10.3969/j.issn.2097-2172.2023.07.017Study on the Control Effects of Different Insecticides on CommonScab of Virus-free Minitub
2、ers in Dry Farming Region LI Yajie1,2,FAN Yi1,2,FENG Mei1,2,WANG Chunming1,3(1.Dingxi AcademyofAgricultural Sciences,Dingxi Gansu 743000,China;2.Gansu PotatoIndustryTechnologyInnovation Centre,Dingxi Gansu 743000,China;3.Dingxi WuliangPotatoCo.,Ltd.,Dingxi Gansu 743000,China)Abstract:In order to scr
3、een out the best control agents for virus free minituber scab disease,Xisen 6 and Qing 9 virus-freeminitubers were selected as experimental materials,and 7 new agents were used to carry out efficacy tests.The results showed that all the 7 treatments had certain control effects against potato scab di
4、sease.Among them,the treatments of Bacillus amyloliquefaciens wettable powder at 0.75 g/m2(T1)tomixed with 150 g soil and ditching application of azoxystrobin suspending agentat 0.50 mL/m2hadbetter control effects against potato scab disease,which could reduce the incidence and disease indexes of po
5、tato scab disease in Xisen 6 and Qing 9,increase the seed number of potato virus-free minitubers and improve the qualified potato rate.The micro-granule fumigant of 98%dazomet at 35.00 g/m2had better control effect against potato scab disease.However,no significant effectinyield increase was detecte
6、d.The control effects of each agent against scab disease was ranked as Bacillus amyloliquefaciens wettable powder at 0.75 g/m 2 azoxystrobin suspending agent at 0.50 mL/m 2 micro-granule fumigant of 98%dazomet at 35.00g/m 2 fludioxonil suspension seed coating agent at 0.50 mL/m2 72%agricultural stre
7、ptomyc in soluble powder of 2 000 times dilution 50%chlorobromoisocyanuric acid soluble powderat 0.50 g/m2 46%copper hydroxide water dispersible granuleat 0.50 g/m2Key words:Potato;Virus-free minituber;Common scab;New type of pharmaceutical 2023-04-15 DX2022TPY02-22CX8NJ153 DX2022BZ38。1986。Email:liy
8、a jie_。1973。Email:。1 2 1 2 1 2 1 3 1.743000 2.743000 3.743000。2023 2 7 669-673Journal of Cold-Arid Agricultural Sciences2 T1 0.75 g/m2 150 g 2 3 d T2 50%0.50 g/m2 150 g 2 3 d T3 0.50 mL/m2 1 2 d T4 72%2 000 1 d T5 98%35.00 g/m2 7 10 d T6 0.50 mL/m2 1 2 d T7 46%0.50 g/m2 1 2 d T8 CK 0.30 L/m2 1 d 1-2
9、。10%30%40%3-4。5 6。、pH、7-9。、10。11。7。1 1.1、50%、72%、98%、46%。9、6。1.2。8 1。4 4m2 32。2022 4 15 800。1.3 2d。Atkinson 12 1。670 7/%/%6 T1 7.2 d 3.8 c 68.2 a T2 12.9 c 6.9 b 45.7 b T3 8.6 d 4.8 b 62.2 a T4 13.8 c 6.4 b 49.6 b T5 10.3 c 5.2 b 63.3 a T6 7.4 d 3.9 c 67.2 a T7 16.4 b 9.2 a 27.6 c T8 CK 22.7 a 12.7
10、a 9 T1 5.4 d 4.3 c 61.6 a T2 11.6 b 9.8 a 26.8 d T3 10.8 b 5.8 bc 48.2 b T4 11.1 b 6.0 b 46.4 b T5 8.8 c 4.7 bc 58.0 a T6 7.2 c 4.6 bc 60.9 a T7 12.3 b 7.2 b 35.7 c T8 CK 18.6 a 11.2 a 7。、。=/100%=/100=1-/100%=/100%2g=-/100%=/1.4 MicrosoftExcel2010。2 2.1 2 6 9。T8 CK。6 T1 7.2%T6 7.4%T3 3 8.6%。T1、T6、T3
11、。6 27.6%68.2%T1 68.2%T6 67.2%T3 3 63.3%T7 27.6%。T1、T3、T5、T6 T2 T4 T7。9、T1 T6 T5 3 5.4%、7.2%、8.8%4.3、4.6、4.7。9 26.8%61.6%T1 61.6%T6 60.9%T3 3 58.0%T2 26.8%。T1、T6、T5。2 0.75 g/m2 T1、0.5 mL/m2 T6、98%35 g/m2 T5、0.5 mL/m2 T3、72%2 000 T4、50%0.5 g/m2 T2、46%0.5 g/m2 T7。2.2 3 2.0%23.7%79.2%。6 T1 44 000 kg/km2
12、 T8 CK 18.1%T4 T6 42500、41500kg/km2 T8 CK 14.1%、11.4%T3 38 000 kg/km2 T8 CK 2.0%。T1、T4、T6 P 0.05。9 T1 47 000 kg/km2 T8 CK 23.7%T6、T4 44 250、44 000 kg/km2 T8 CK 16.4%、15.8%T7 39500kg/km2 T8 CK 3.9%。T1、T6、T4、T2 2 671 2 P 0.05。6 T1 79.2%T8 CK 20.8 T5、T6、T4 70.0%、69.3%、68.1%T8 CK 11.6、10.9、9.7 T7 63.4%T
13、8 CK 5.0。9 T1 74.8%T8 CK 12.0 T5、T4、T6 71.8%、71.0%、70.7%T8 CK 9.0、8.2、7.9 T2 64.7%T8 CK 1.9。0.75 g/m2 98%35 g/m2。3 3-、13 1 8。14 21.4%63.90%。15。7 0.75 g/m2 150 g 0.5 mL/m2、98%35 g/m2。0.75 g/m2、0.5mL/m2、98%35g/m2、0.5 mL/m2、72%2000、50%0.5g/m2、46%0.5 g/m2。7 98%45 g/m2 80%。16 72%70%。72%50%。2。7%4 8。/kg/4
14、m 2/kg/hm 2/%/%6 T1 17.6 44 000 a 18.1 79.2T2 15.8 39 500 b 6.0 67.4T3 15.2 38 000 b 2.0 66.5T4 17.0 42 500 a 14.1 68.1T5 15.8 39 500 b 6.0 70.0T6 16.6 41 500 a 11.4 69.3T7 15.7 39 250 b 5.4 63.4T8 CK 14.9 37 250 c 58.4 9 T1 18.8 47 000 a 23.7 74.8T2 17.1 42 750 a 12.5 64.7T3 16.5 41 250 b 8.6 70.1T
15、4 17.6 44 000 a 15.8 71.0T5 16.0 40 000 b 5.3 71.8T6 17.7 44 250 a 16.4 70.7T7 15.8 39 500 b 3.9 68.7T8 CK 15.2 38 000 c 62.8 3 672 7 1.J.2022 48 1 7-16 28.2.J.2022 53 6 5-13.3.J.2022 53 8 84-88.4.J.2022 35 8 12-17.5.J.2019 46 3 611-617.6.J.2020 38 6 661-669.7.98%J.2021 60 2 150-153.8.J.2010 38 11 1
16、37-139.9.J.2020 33 12 2814-2820.10.J.2022 38 2 37-38.11.J.2021 790 8 37-43.12 ATKINSON D,THORNTON M K,MILLER J S.Devel opment of Rhizoctonia solani on stems,stolons and tu bers of potatoes I.Effect of inoculum source J.Ameri can Journal of Potato Research,2010,87 4 374-381.13.J.2022 8 80-84 110.14.J.2022 45 2 165-168.15.J/OL.:1-11 2022-09-29 2023-06-21.http:/.6 J.2019 2 23-27.673
