Search Results for: corn borer

Sweet Corn

European corn borer (ECB) moth catches in black light traps continue to be very low. There will be no map in this edition due to insufficient catch.  There have been isolated incidents of new feeding in the far south of the state, but generally, the threat to corn should be low until the second flight begins in earnest.  Once plants hit full tassel, any ECB larvae present will move downward on the stalk and re-enter the plant near the area where ears are forming.  This can result in direct injury to the ear.  Growers should consider an insecticide application at the full tassel stage to target ECB larvae as they migrate downward.  This application can eliminate larvae that have escaped any earlier insecticide applications. [Read more…]

Sweet Corn

European corn borer (ECB) moth catches in black light traps remain very low; situation unchanged from last week.  There will be no map in this edition due to insufficient catch.  Incidents of feeding are declining as infested plantings proceed to silk and whorl stage corn has not been exposed to egg laying.  We should be in a period relatively free of whorl infestations now.  The next whorl infesting pest will be fall armyworm (FAW).  As yet, no infestation of this pest have been detected.    [Read more…]

Sweet Corn

European corn borer (ECB) moth catches in black light traps remain very low.  There will be no map in this edition due to insufficient catch.  Incidents of feeding are declining as infested plantings proceed to silk and whorl stage corn has not been exposed to egg laying.  We should be in a period relatively free of whorl infestations now.  The next whorl infesting pest will be fall armyworm (FAW).  As yet, no infestation of this pest have been detected.    [Read more…]

Sweet Corn

European corn borer (ECB) moth catches in black light traps are very low.  The highest activity now in north central areas (see ECB map).   Feeding continues to increase, although infestations are spotty.   [Read more…]

Sweet Corn

European corn borer (ECB) moths have declined in black light traps, and numbers are now very low.  The highest activity now in central Morris County (see ECB map).   As is normal, when the adult generation winds down, feeding increases.  IPM technicians have reported dramatic increases in feeding in whorl and pre-tassel stage plantings in the all counties.  Numbers of infested plants have exceeded 30% in many areas.  [Read more…]

Sweet Corn

European corn borer (ECB) moths continue to be captured in black light traps, but numbers are low overall.  Activity has shifted northward, with the highest activity now from Mercer County northward (see ECB map).   Despite these low adult numbers, IPM technicians have reported dramatic increases in feeding in whorl stage plantings in the central and northern counties.  Numbers of infested plants have reached 40% in the Somerville area, and 30% near Sparta in Sussex County.  In many cases, nearby farms exhibit little or no feeding in similar stage sweet corn, so these elevated infestation rates can be highly localized.  [Read more…]