Understanding the biology of a pest can reveal weaknesses and vulnerabilities that can be exploited when trying to manage the pest.Īll flies have 4 distinct life stages: egg, larva (commonly called maggot), pupa, and adult. To be successful, management strategies must take into consideration the biology and behavior of the pest. “All food facilities and all equipment, utensils, and facilities shall be kept clean, fully operative, and in good repair.” “The premises of each food facility shall be kept clean and free of litter, rubbish, and vermin.”ġ14050. “A food facility shall at all times be so constructed, equipped, maintained, and operated as to prevent the entrance and harborage of animals, birds, and vermin, including, but not limited to, rodents and insects.”ġ14040. “All food shall be prepared, stored, displayed, dispensed, placed, transported, sold, and served as to be protected from dirt, vermin, unnecessary handling, droplet contamination, overhead leakage, or other contamination.”ġ14030. Although they are of no significant medical importance, they can cause respiratory problems in people who must live and work in clouds of flies.Ĭalifornia Health and Safety Code Sections that relate to cleanliness in food establishments:ġ14010.In large numbers, their constant presence can be annoying.In large numbers, drain flies can fall onto and contaminate food, eating utensils, and food preparation surfaces.The larvae are considered beneficial because they are an important part of the group of organisms that break down and recycle organic matter.In small numbers, drain flies are mainly a nuisance pest.The wormlike larvae (maggots) of drain flies are legless, gray, and about 3/8”.Adults are poor fliers and fly only a few feet at a time.Adults hold their fuzzy wings over their bodies like a tent.Adult drain flies are tiny (less than 1/4” long), and fuzzy-looking.These flies are in the family Psychodidae and are also called “moth flies” or “filter flies”.Help customer comply with Health Department regulations.Keep flies out of food handling and food processing areas.Reduce fly complaints in the building and work with occupants to prevent future complaints.The answer to this question will vary, depending on the site and the customer. What do you want/need to accomplish at the site in regard to the pest flies? Management Objectives for the Pest at the Particular Site From this list, the IPM Practitioner can choose options to develop a unique management plan for each particular customer site. This document contains information about the biology and management of flies that commonly live in the gelatinous material that collects on the sides of drains and other areas high in moisture and organic material.
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