CAJ | 학술논문

为有效防治鹤岗地区玉米病虫害，于2014年对该区玉米主要叶斑类病害的发生动态进行了调查和分析。结果表明：2014年，鹤岗地区玉米大斑病（Exserohilum turcicum）7月8日开始出现，至8月19日发病率达到100％；整个发病率呈“慢‐快‐慢”的“S”曲线动态，病情指数随时间的推移而升高，7月1日之前病情指数为0，到9月16日玉米成熟时达到最高，为47．2；弯孢菌叶斑病（Curvularia lunata）的整个发病率也呈“S”曲线状，病害明显症状从6月29日开始出现，至8月12日达到100％，病情指数随时间的推移而升高，6月21日之前病情指数为0，到9月16日玉米成熟时达到最高，为22．90；玉米灰斑病（Cercospora zeae‐maydis）7月8日开始出现，至8月26日发病率达到最大值94．6％，病情指数随时间推移而升高，7月1日之前为0，到9月2日玉米成熟前达到最高，为11．58。根据 Logistic 模型分析，在鹤岗地区从始见病斑至7月22日以前是玉米大斑病病情指数的指数增长期，7月22日至9月13日是 Logistic 增长期，衰退期是9月13日以后；弯孢菌叶斑病病情指数的指数增长期是出苗期为7月10日前，Logistic 增长期是7月10日至8月5日，衰退期是8月5日以后；灰斑病病情指数的指数增长期是出苗期到7月29日，Logistic 增长期是7月29日至8月12日，衰退期是8月12日以后。
위유효방치학강지구옥미병충해，우2014년대해구옥미주요협반류병해적발생동태진행료조사화분석。결과표명：2014년，학강지구옥미대반병（Exserohilum turcicum）7월8일개시출현，지8월19일발병솔체도100％；정개발병솔정“만‐쾌‐만”적“S”곡선동태，병정지수수시간적추이이승고，7월1일지전병정지수위0，도9월16일옥미성숙시체도최고，위47．2；만포균협반병（Curvularia lunata）적정개발병솔야정“S”곡선상，병해명현증상종6월29일개시출현，지8월12일체도100％，병정지수수시간적추이이승고，6월21일지전병정지수위0，도9월16일옥미성숙시체도최고，위22．90；옥미회반병（Cercospora zeae‐maydis）7월8일개시출현，지8월26일발병솔체도최대치94．6％，병정지수수시간추이이승고，7월1일지전위0，도9월2일옥미성숙전체도최고，위11．58。근거 Logistic 모형분석，재학강지구종시견병반지7월22일이전시옥미대반병병정지수적지수증장기，7월22일지9월13일시 Logistic 증장기，쇠퇴기시9월13일이후；만포균협반병병정지수적지수증장기시출묘기위7월10일전，Logistic 증장기시7월10일지8월5일，쇠퇴기시8월5일이후；회반병병정지수적지수증장기시출묘기도7월29일，Logistic 증장기시7월29일지8월12일，쇠퇴기시8월12일이후。
For effective prevention and control of maize plant diseases and insect pests of Hegang region ,in 2014 ,northern leaf blight of maize in Hegang area began in July 8th ,in August 19th the incidence rate up to 100% ;the incidence curve was “slow‐fast‐slow” and “S” shape ;disease index of northern maize leaf blight in‐creased along with time ,it was 0 before July 1st ,and reached the maximum rate of 47 .2 on September 16th when maize matured .The whole incidence curve of maize Curvularia leaf spot was “S” shape ,it began to appear from June 29th ,in August 12th the incidence rate of 100% ;and gray leaf spot of maize began in July 8th ,in August 26th the incidence rate reached a maximum rate of 94 .6% .Disease index of maize Curvularia leaf spot was 0 before July 21st ,and reached the maximum rate of 22 .90 on September 16th when maize matured .Disease index of maize gray leaf spot was 0 before July 1st ,and reached the maximum rate of 11 .58 on September 2nd .Analy‐sis according to the Logistic model ,exponential phase in the Hegang region of disease index of northern maize leaf blight was period from the emergence period to July 22nd ,Logistic period was period from July 22nd to Sep‐tember 13th ,and recession period was period after September 13th ;exponential phase of maize Curvularia leaf spot in the Hegang region was period from the emergence period to July 10th ,Logistic period was period from July 10th to August 5th ,and recession period was period after August 5th .Exponential phase in the Hegang re‐gion of maize gray leaf spot was period from the emergence period to July 29th ,Logistic period was period from July 29th to August 12nd ,and recession period was period after August 12nd .