Zinc Phosphide Label Update

Jason Bennett
CPS Tangent

Wanted to give everybody an update on the Zinc Phosphide Label for above ground use in grass seed.  We received word from Michael Babbitt at ODA, that ODA and USFW had made a decision to allow the application of ZP above ground use to begin May 1st through August 31st.  Last year ODA did not allow the above ground use until May 8th, because of the few geese that were hanging around late last year.

To allow the use of ZP on May 1st they made some changes to the label which is address in the text below.  This is part of the letter that was sent from ODA to EPA.
After much debating about the first date of when the application of  zinc phosphide above-ground on grass grown for seed should be allowed, it was decided that because it is an El Nino year and the grass is becoming very tall, that the start up date should be May 1. 

The label states, "APPLICATIONS ARE ONLY ALLOWED FROM MAY 1 THROUGH AUGUST 31". Please note, any above-ground application of zinc phosphide to grass grown for seed prior to May 1 would be considered a serious violation. 

Also, because of concerns expressed by United States Fish and Wildlife Service, the following statement,  "Do not make applications if geese or other migratory birds have been observed in the field within the last seven (7) days", has been changed to, "Do not make applications if geese or other migratory birds have been observed in the field within the last fourteen (14) days".

Again wanted point out the label change went from no migratory birds or geese seen in the last 7 days to 14 days now.  Below are the links to the 2 different labels.
Motomco Label
Bell Laboratories Label