If larval casings or webbing are observed in Zone 2, what does this imply about Zone 1?
Answer
A thriving, yet hidden, food source in Zone 1 needs immediate remediation
The practical three-zone strategy used for management relates larval activity directly to the location of the food source. Zone 1 is defined as the direct food source (e.g., pantry or linen closet). Zone 2 is the immediate peripheral area where larvae crawl to find debris or pupate. If evidence like larval casings or webbing is found in Zone 2, it strongly suggests that the immediate vicinity is merely a secondary manifestation of a larger problem. This observation indicates that the primary, active feeding colony—the thriving source—is located upstream in Zone 1 and requires immediate, focused treatment to stop the infestation cycle.
Related Questions
Which continents document the widespread presence of *Endrosis sarcitrella*?Where might *Endrosis sarcitrella* larvae develop within hidden void spaces inside a structure?Besides stored grains and wool fibers, what surprising component feeds *Endrosis sarcitrella* larvae?What environmental factor, besides food presence, defines the moth's location density?Where might pupae of *Endrosis sarcitrella* be found after leaving the primary feeding site?Which outdoor sites serve as potential bridging points between the environment and the home interior?If larval casings or webbing are observed in Zone 2, what does this imply about Zone 1?How does the diet of *Endrosis sarcitrella* larvae differ from that of *Hofmannophila pseudospretella*?Which life stage of the White-shouldered House Moth is characterized as the destructive one indoors?What general concept dictates where *Endrosis sarcitrella* establishes its larval colonies?