Entomology

The analysis may consider species identity, eggs or immature stages, adult insects, environmental conditions, host availability, sanitation, building or site conditions, prior observations, and treatment history. Life-cycle evidence can help evaluate whether an infestation could have developed within the alleged period. For example, CDC notes that flea development proceeds through egg, larval, pupal, and adult stages and that temperature, humidity, hosts, and environmental conditions affect the timing of that cycle.

A suitably qualified entomology expert may evaluate insect identification, pest populations, pollinators, colony observations, insect damage, life cycles, seasonal activity, field conditions, and relevant sampling or monitoring records. Honey-bee matters may additionally involve apiary records, colony condition, pests and pathogens, forage conditions, and hive samples. USDA maintains dedicated honey-bee research and surveillance programs addressing colony health, pests, pathogens, nutrition, and apiary conditions.

Useful materials may include preserved specimens, original photographs and video, trap contents and logs, collection dates and locations, infestation reports, pest-control records, pesticide records, environmental data, building or site photographs, field notes, agricultural records, apiary or hive records, and communications documenting when insects were first observed. Where specimens are available, maintaining identification and collection information can be important because morphology and life stage may materially affect the expert's conclusions.