Editor’s note: The following was written by Greg Tylka, professor in the Department of Plant Pathology and Microbiology at Iowa State University, for the Integrated Crop Management News website June 19.
k9C ^m
kAm%96C6 2C6 >@C6 E92? `_ 5:776C6?E EJA6D @7 ?6>2E@56D E92E 7665 @? 4@C? :? x@H2] %96J G2CJ EC6>6?5@FD=J :? D:K6[ 3:@=@8J 2?5 23:=:EJ E@ 42FD6 52>286] s6E6C>:?:?8 :7 ?6>2E@56D 2C6 52>28:?8 4@C? C6BF:C6D AC@A6C D2>A=6 4@==64E:@? 2?5 :?E6CAC6E2E:@? @7 C6DF=ED] q6=@H 2C6 D@>6 8F:56=:?6D 7@C 4964<:?8 7:6=5D]k^Am
kAm$2>A=6D D9@F=5 36 4@==64E65 @?=J 7C@> ?62C DJ>AE@>2E:4 A=2?ED :? 7:6=5D] r@C? A=2?ED 52>2865 3J ?6>2E@56 7665:?8 H:== 36 DEF?E65 2?5^@C 92G6 J6==@H 7@=:286] p=D@[ C@@ED @7E6? H:== 36 DEF?E65[ DH@==6?[ =24<:?8 7:?6 C@@ED @C 92G6 2C62D @7 3C@H? @C 3=24< 5625 E:DDF6]k^Am