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…]
Rutgers Cooperative Extension
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…]
Sweet Corn
Increasing numbers of European corn borer (ECB) moths have been captured this
past week, but still relatively few moths overall. At present, the highest activity is on the Cumberland-Atlantic border, with minor concentrations in Salem and northern Burlington counties (see ECB map). As early sweet corn plantings progress through whorl and pre-tassel stages, feeding from this pest may be detectable. Look for the characteristic “shot-hole” type of feeding (photo at right) and consider treating when infested plants exceed 12% in a 50 plant sample.
The highest nightly trap catches of ECB for the week ending 5/30/18 are as follows:
East Vineland 2 | Centerton 1 | Eldora 1 |
Allentown 1 | Cinnaminson 1 | Medford 1 |
Belvidere 1 | Crosswicks 1 | South Branch 1 |
Califon 1 | Denville 1 | Woodstown 1 |
Sweet Corn
The black light trap network is nearly complete at this time. To date, no corn earworm (CEW) have been captured. Increasing numbers of European corn borer (ECB) moths have been captured this past week, although numbers are still quite low. At present, the highest activity is in portions of northern Burlington and northwestern Ocean counties (see ECB map). This pest poses little threat at this time, as the earliest sweet corn plants are only just reaching suitable size to support larvae.
The highest nightly trap catches of ECB for the week ending 5/23/18 are as follows:
Allentown 1 | Dayton 1 | New Egypt 1 |
Centerton 1 | Jobstown 1 | |
Croswicks 1 | Medford 1 |
Sweet Corn
IPM Program personnel are currently finishing deployment of the black light trap network in New Jersey. At present, we are approximately 70% operational and have begun to monitor traps. To date, no corn earworm (CEW) have been captured. The low numbers of European corn borer (ECB) moths that have been caught do not allow us to produce a map image. As numbers increase, look for population maps of ECB, CEW and CEW catches from pheromone traps in this weekly publication.
The highest nightly trap catches of ECB for the week ending 5/15/18 are as follows:
Allentown 1 New Egypt 1
Crosswicks 1 Pennington 1
European corn borer egg mass on a pepper leaf.