Can an Exterminator Legally Take Photos of My Apartment? -- Good Questions

Pin it Q: I am wondering if it's unlawful for a pest control company to take photos of a tenant's residence while they are spraying the apartment. I was informed recently from my landlord that the exterminator takes photos while he sprays, and reports the photos back to the landlord. Is this even legal? I noticed flashes of light while he walks through my unit, but I've never actually caught him taking pics. Thanks for your reply. -Sent by Denise