As we approach the end of bloom, growers should consider the need for any post-bloom applications. The main pest targets for these applications are mainly Sparganothis fruitworm and spotted fireworm. [Read more…]
Fruit Crops Edition - Cranberry Section
Seasonal updates on diseases, insects, weeds impacting small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
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June 22, 2015 Cesar Rodriguez-Saona
Cranberry Insect Control Update
Cranberry beds are in full bloom. If insects have been effectively managed prior to bloom, we recommend no sprays at this time. A reminder: when bees are present, your only choices of insecticides are insect growth regulators (IGRs) such as Intrepid 2F or Bt products such as DiPel.
During bloom we recommend monitoring insect populations using pheromone traps. Pheromone traps should be used particularly to monitor activity of Sparganothis fruitworm and blackheaded fireworm, two key pests in New Jersey.
Sparganothis Larvae
Sparganothis Adult
May 26, 2015 Raymond Samulis
Cranberry Growers Twilight Meeting
Date: Thursday, June 18, 2015
Location: Integrity Propagation, Route 563, SpeedwellJust south of Chatsworth. Look for the Lee Brothers Ocean Spray sign and turn down the road right next to the sign. You will see the greenhouses about ¼ mile down the road on the right hand side.
All cranberry growers are invited to this growers twilight meeting hosted by Integrity Propagation-Abbott Lee and sponsored by Rutgers Cooperative Extension and the New Jersey Agricultural Experiment Station.Meeting Agenda
5:30 Dinner
6:00 Program begins. Topics of importance to cranberry growers in New Jersey: diseases, monitoring, management of fruit quality, weather forecasting equipment, insect control, new bed establishment, pesticide storage design, pesticide storage hazard assessment, and more.Pesticide Credits Awarded: total of 6 in 3 categories.
May 13, 2015 Cesar Rodriguez-Saona
Insect Pests to Look for in Cranberry Bogs
The following insect pests bear special mention for early-season scouting in cranberry bogs.
Click images to enlarge.
Blackheaded Fireworm
Blackheaded fireworm eggs overwinter on the bed and usually hatch by around mid-May. It is important to catch the first generation, if possible, because the second generation occurs during bloom and is typically much more destructive. Blackheaded fireworm larvae can be detected by sweep net sampling and it is good idea to look along the edges of bed where vines first begin to grow.
Blackheaded fireworm Larva Photo:D.Schiffhauer
Blackheaded fireworm Adult Photo:D.Schiffhauer
Blackheaded fireworm is much easier to control if detected during the early part of the season.
May 5, 2015 Cesar Rodriguez-Saona
Cranberry IPM: Sparganothis Fruitworm Degree-Day Benchmarks Provide Key Treatment Timings
Degree-day benchmarks indicate discrete biological events in the development of insect pests. For the Sparganothis fruitworm, recent studies conducted by Dr. Shawn Steffan (USDA-ARS/University of Wisconsin-Madison), Annie Deutsch (University of Wisconsin-Madison), and Cesar Rodriguez-Saona (Rutgers University) have isolated the key development events and linked them to degree-day (DD) accumulations. These degree-day accumulations can improve treatment timings for cranberry IPM programs in spring and summer.
Sparganothis adult
Sparganothis larva
April 10, 2015 Administrator
2015 NJ Commercial Pest Control Recommendations
Updated for 2015, the commercial blueberry and cranberry pest control recommendations for NJ are available for download from Rutgers NJAES.
Commercial Blueberry Pest Control Recommendations for New Jersey, 2015
Oudemans, P.
Majek, B.
Pavlis, G.
Polk, D.
Rodriguez-Saona, C.
Ward, D.
Commercial Cranberry Pest Control Recommendations for New Jersey, 2015
Oudemans, P.
Majek, B.
Rodriguez-Saona, C.
