Pesticide Boundary
Formerly registeredIs Puccinia thlaspeos used as a pesticide, and where is the line for fertilizer claims?
Source: EPA pesticide registrations and the FIFRA 25(b) minimum-risk list
Formerly registered
Is Puccinia thlaspeos used as a pesticide? It has been, in products no longer registered.
EPA APPRIL pesticide product records and the FIFRA 25(b) minimum-risk list · EPA records Oct 14, 2026 · 25(b) list checked Oct 29, 2026
What this means
Puccinia thlaspeos appears only in EPA pesticide registrations that have been cancelled or have lapsed. There's past pesticide precedent for this species, but no active registered product.
- EPA registrations
- 0 active, 1 cancelled or inactive. See the products
What it means for US registration
A fertilizer or biostimulant product with Puccinia thlaspeos doesn't need EPA pesticide registration as long as its label makes no pesticidal claims. Claims to control, repel or kill pests would bring it under EPA's rules.
Registering a product with this input?
Source: EPA APPRIL pesticide product records and the FIFRA 25(b) minimum-risk list
See the full picture on Puccinia thlaspeos
This is one lens. Every connected source on Puccinia thlaspeos in one place: EPA Pesticide, Pesticide Boundary, Organic (NOP), Scientific Literature, Potential Claims, Taxonomy & Synonyms.