Insects are a major problem in cranberry production – they are estimated to reduce yield by 1-2% and without spraying, cranberry false blossom, a phytoplasma vectored by blunt-nosed leafhopper, would eliminate commercial cranberry production completely. Spraying chemical pesticides is the most common practice to combat pathogens and herbivorous insects, but beneficial insects, such as honeybees, important pollinators of cranberry, and natural enemies, such as predators and parasitoids, could be affected as well. Therefore, at the P.E. Marucci Center for Blueberry and Cranberry Research and Extension, we study the defensive mechanisms that cranberry plants themselves use against insect feeding. The research project of Dr. Elvira de Lange, a postdoc at the P.E. Marucci Center, focuses on four of the most problematic insects on cranberry in New Jersey: Sparganothis fruitworm, spotted fireworm, gypsy moth and the above-mentioned blunt-nosed leafhopper.
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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Beating the Bugs in the Bogs:
Insect Resistance in Different Cranberry Varieties
American Cranberry Growers Association 2015 Summer Field Day
The American Cranberry Growers Association 2015 Summer Field Day will be held on Thursday August 20, 2015 at the P.E. Marucci Center for Blueberry & Cranberry Research & Extension, Chatsworth, NJ
AGENDA
CRANBERRY BOGS
8:30–8:45 Opening Remarks
Shawn Cutts, President, American Cranberry Growers Association8:45-9:05 Virus Observations in the Field-Symptoms and Detection (Bog 8)
James Polashock, Research Plant Pathologist, USDA-ARS9:05–10:25 Update on Disease Management (Bog 10)
Peter Oudemans, Department of Plant Biology and Pathology, Rutgers University9:25–9:45 Next Generation Cranberry Hybrids: the 3rd Breeding and Selection Cycle (Bog 10)
Nicholi Vorsa, P.E. Marucci Center for Blueberry & Cranberry Research & Extension, Rutgers University, Chatsworth, NJ9:45-10:05 Evaluation of Our “Top Ten” Fruit Rot Resistant Selections (Bog 11)
Jennifer Johnson-Cicalese, P.E. Marucci Center for Blueberry & Cranberry Research & Extension, Rutgers University, Chatsworth, NJ10:05–10:25 Update on Insect Management (Bog 19)
Cesar Rodriguez-Saona, Department of Entomology, Rutgers University; Vera Kyryczenko-Roth, P.E. Marucci Center; and Robert Holdcraft, P.E. Marucci Center10:25-10:45 Assessing Insect Resistance in Cranberries (Bog 20)
Elvira de Lange, Department of Entomology, Rutgers UniversityCONFERENCE ROOM
11:00–11:15 Cranberry Statistics
Bruce A Eklund, State Statistician, U.S. Department of Agriculture | National Agricultural Statistics Service11:15–11:30 Cranberry Museum
Ted Gordon, Pine Barrens Botanist, Historian11:30–12:00 Show and Tell
Cranberry growers12:00–1:00 LUNCH (Pole Barn)
1:00–1:30 Farm Safety
Ray Samulis, Cooperative Extension Agent, Burlington County Extension, Rutgers University
Cranberry Toad Bug: Life Cycle & Management
Recently the cranberry toad bug, Phylloscelis atra (Figure 1), has become a problematic pest of cranberries in New Jersey. Toad bugs are hemipteran insects, similar to blunt-nosed leafhoppers, but belong to the Family Dictyopharidae (planthoppers) as opposed to leafhoppers, which belong to the family Cicadellidae.
Fig 1. Cranberry Toad Bug
Cranberry: Post-bloom Insect Pest Control Recommendations
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…]
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
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.
