草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2014年
3期
31-35,41
,共6页
白菜型冬油菜%根腐病%药剂筛选%毒力测定%药效试验
白菜型鼕油菜%根腐病%藥劑篩選%毒力測定%藥效試驗
백채형동유채%근부병%약제사선%독력측정%약효시험
winter rapeseed%root rot%fungicides screening%toxicity measurement%efficacy test
采用7种药剂对引起白菜型冬油菜根腐病的半裸镰刀菌和尖孢镰刀菌进行了室内药剂筛选和毒力测定,结果表明,苯甲·丙环唑、十三吗啉、苯醚甲环唑、恶霉灵4种药剂对半裸镰刀菌和尖孢镰刀菌的 EC50均较小,毒力较强,对半裸镰刀菌的 EC50分别为0.15、15.67、22.61、67.45μg/mL,对尖孢镰刀菌的 EC50分别为2.11、11.78、8.56、62.41μg/mL。采用7种药剂对冬油菜种子拌种,进行了室内药效试验,结果表明,苯甲·丙环唑、苯醚甲环唑、十三吗啉、恶霉灵4种供试药剂对半裸镰刀菌和尖孢镰刀菌的防效显著高于其他3种药剂,平均防效达60%。
採用7種藥劑對引起白菜型鼕油菜根腐病的半裸鐮刀菌和尖孢鐮刀菌進行瞭室內藥劑篩選和毒力測定,結果錶明,苯甲·丙環唑、十三嗎啉、苯醚甲環唑、噁黴靈4種藥劑對半裸鐮刀菌和尖孢鐮刀菌的 EC50均較小,毒力較彊,對半裸鐮刀菌的 EC50分彆為0.15、15.67、22.61、67.45μg/mL,對尖孢鐮刀菌的 EC50分彆為2.11、11.78、8.56、62.41μg/mL。採用7種藥劑對鼕油菜種子拌種,進行瞭室內藥效試驗,結果錶明,苯甲·丙環唑、苯醚甲環唑、十三嗎啉、噁黴靈4種供試藥劑對半裸鐮刀菌和尖孢鐮刀菌的防效顯著高于其他3種藥劑,平均防效達60%。
채용7충약제대인기백채형동유채근부병적반라렴도균화첨포렴도균진행료실내약제사선화독력측정,결과표명,분갑·병배서、십삼마람、분미갑배서、악매령4충약제대반라렴도균화첨포렴도균적 EC50균교소,독력교강,대반라렴도균적 EC50분별위0.15、15.67、22.61、67.45μg/mL,대첨포렴도균적 EC50분별위2.11、11.78、8.56、62.41μg/mL。채용7충약제대동유채충자반충,진행료실내약효시험,결과표명,분갑·병배서、분미갑배서、십삼마람、악매령4충공시약제대반라렴도균화첨포렴도균적방효현저고우기타3충약제,평균방효체60%。
Fungicides screening and toxicity measurement of 7 fungicides against Fusarium semitectum and F .Oxysprorum which caused root rot of winter rapeseed (Brassica campestris)were studied in laboratory.The results showed that Difenoconazole + Propiconazoleether,Tridemorph,Difenoconazole and Hymexazol had strong inhibition effects on Fusarium semitectum and F .oxysprorum,and the EC50 to F .semitectum were 0.15, 15.67,22.61 and 67.45 μg/mL,and 2.1 1、1 1.78,8.56 and 62.41 μg/mL to F .oxysprorum respectively.The re-sults of efficacy after seed dressing with 7 fungicides indicated that Difenoconazole + Propiconazoleether,Tride-morph,Difenoconazole and Hymexazol had high control effects,and their average control rate was above 60%.
