Cranberry and Cherry Fruit Worm


A number of growers have been calling with a question about blueberry clusters strung together with webbing or frass or both. Most people cannot find a larvae (although they are there!), but are alarmed with picker complaints. The pest in question is fruit worm either cranberry or cherry. Both insects have very similar life cycles and the damage is similar, but the chemical control materials differ slightly, so it will be important to be able to differentiate.
The adult moths lay their eggs in late May and early June at the base of the newly set fruit. Larvae of both
species attack green fruit. There are sex pheromones available for both pests and monitoring should begin in late April to optimize spray timing. Usually two sprays are necessary the first at petal fall and the second 10 days later. Organically approved materials include Entrust and Dipel DF. Other materials include Azasol, or Molt-X, Sevin, Malathion, Imidan, Esteem and Delegate, among others.
Check the Guidelines for more control information and visit this site for fact sheets about fruitworms: http://www.fruit.cornell.edu/berry/ipm/ipmpdfs/bbfruitworm.pdf

Upcoming Events
Leading the Farm Team: Supervisory Skills for New Managers
April 14, 2026 : Session 1: Becoming a Supervisor
The transition from working alongside employees to supervising them can be challenging. This session explores the shift from individual contributor to supervisor and the mindset and skills needed to lead a team effectively. Participants will learn about the role of a supervisor, key leadership behaviors, and how to build trust and credibility with employees.
April 21, 2026 : Session 2: Improving Performance
This session will introduce the performance triad—clear expectations, training, and feedback—to support employee success. We will discuss practical communication strategies, how to give constructive feedback, and how supervisors can help employees improve their performance over time.
April 28, 2026 : Session 3: Managing Conflict
Supervisors are responsible for maintaining a professional and respectful workplace. This session covers some of the legal and ethical responsibilities of supervisors and the responsibilities managers have in addressing workplace concerns.
Participants will also explore common sources of workplace conflict, learn to recognize potential biases that can influence management decisions, and discuss practical approaches for addressing difficult situations and resolving conflicts at work.
