40 CFR § 158.1752 - Flies.

---
identifier: "/us/cfr/t40/s158.1752"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 158.1752 - Flies."
title_number: 40
title_name: "Protection of Environment"
section_number: "158.1752"
section_name: "Flies."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "158"
part_name: "DATA REQUIREMENTS FOR PESTICIDES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 136-136y; 21 U.S.C. 346a."
regulatory_source: "72 FR 60957, Oct. 26, 2007, unless otherwise noted."
cfr_part: "158"
---


# 158.1752 Flies.

(a) *General.* The table in this section applies to flies. The product labeling claim determines the required test species. The required test species for a labeling claim against flies appear in paragraph (b) of this section.

(b) *Test species.* For products making a claim against flies, the required test species for a labeling claim against flies appear in the following table.

Table 1 to Paragraph **(b)**—Required Test Species for Products Making a Claim Against Flies

| Labeling claim | Required test species |
| --- | --- |
|  |  |
| Flies | Testing of five species is required:
House fly () AND Flesh fly ( sp.,  sp., and other genera of flesh flies) OR Blow fly ( sp.,  sp., and other genera of blow flies) AND Stable fly () AND Biting midge (punkie, granny nipper, no-see-um) (any  sp.) OR Black fly (any  sp. or  sp.) OR Black gnat (any  sp.) AND Black horse fly () OR Deer fly ( sp.) OR Striped horse fly (). |
|  |  |
| Filth Flies | Testing on two species is required:
House fly (). |
|  | AND One of the following species is required:
Flesh fly ( sp.,  sp., and other  of flesh flies) OR Blow fly ( sp.,  sp., and other  of blow flies). |
| Biting flies (excluding Sand flies) | Testing is required on three species:
Stable fly (). |
|  | AND one of the large biting fly species:
Black horse fly () OR Deer fly ( sp.) OR Striped horse fly (). |
|  | AND one of the small biting fly species:
Biting midge (punkie, granny nipper, no-see-um) (any  sp.) OR Black fly (any  sp. or  sp.) OR Black gnat (any  sp.). |
| Large Biting Flies | Testing is required on two species:
Stable fly (). |
|  | AND one of the following species:
Black horse fly () OR Deer fly ( sp.) OR Striped horse fly (). |
| Small Biting Flies (excluding Sand flies) | Testing is required on one of the following species:
Biting midge (punkie, granny nipper, no-see-um) ( sp.) OR Black fly ( sp. OR  sp.) OR Black gnat ( sp.). |
|  |  |
| Blow fly | Blow fly ( sp.,  sp., and other  of blow flies). |
| Cluster fly | Cluster fly (). |
| Face fly | Face fly (). |
| Flesh fly | Flesh fly ( sp.,  sp., and other  of flesh flies). |
| House fly | House fly (). |
| Little house fly | Little house fly (). |
| Biting midges (punkie, granny nipper, no-see-um) | Biting midge (punkie, granny nipper, no-see-um) ( sp.). |
| Black flies | Testing on one of the following species is required:
 sp. OR  sp. |
| Black gnats | Black gnat ( sp.). |
| Deer flies | Deer fly ( sp.). |
| Greenhead | Greenhead (). |
| Horn fly | Horn fly (). |
| Horse flies | Testing on one of the following species is required:
Black horse fly (), OR Striped horse fly (). |
| Sand flies | Testing on one of the following species is required:
 sp. OR  sp. |
| Stable fly | Stable fly (). |