WAC 16-230-030   What are the use restrictions for alfalfa and clover pesticide applications?  (1) The use or application of any formulation (except where the formulation is specified) of the following listed pesticides is prohibited on blossoming alfalfa and clover crops within seven days to blossoming: Provided, That methidathion (Supracide) when used in Kittitas County on timothy hay mixed with alfalfa and/or clover shall only be prohibited within three days to blossoming. See WAC 16-230-076 and 16-230-078 for additional restrictions in certain areas of Walla Walla County.

     (a) Azinphos-methyl (Guthion)

     (b) Carbaryl (Sevin)

     (c) Carbofuran (Furadan)

     (d) Dimethoate (Cygon)

     (e) Methidathion (Supracide)

     (2) The use or application of liquid formulations of chlorpyrifos (Lorsban), wettable powder formulations of naled (Dibrom), and liquid or wettable powder formulations of malathion (Fyfanon) and phorate (Thimet) applied as sprays on blossoming alfalfa or clover crops is restricted to applications only within the period beginning at two hours prior to sunset and ending at midnight of the same day.

     (3) The use or application of any formulation (except where the formulation is specified) of the following pesticides is prohibited on blossoming alfalfa and clover crops:

     (a) Carbaryl (Sevin) see number (1) above

     (b) Diazinon

     (c) Fenthion (Baytex)

     (d) Malathion (Fyfanon) ULV and dust

     (e) Methyl parathion

     (f) Naled (Dibrom) dust

     (g) Phosmet (Imidan)

     (4) The use or application of the following listed pesticides or any formulation thereof (except where the formulation is specified) on blossoming alfalfa and clover crops is restricted to applications only within the period beginning at two hours prior to sunset and ending at two and one-half hours after sunrise the following morning: Provided, That methomyl (Lannate or Nudrin) shall only be applied to blossoming clover crops pursuant to this rule, and its application to blossoming alfalfa is further restricted to applications only within the period beginning at two hours prior to sunset and ending at midnight the same day: Provided further, That the application of the following use restricted pesticides on blossoming alfalfa in Walla Walla County is further restricted to applications only within the period beginning at sunset and ending at two hours after midnight the following morning:

     (a) Formetanate hydrochloride (Carzol)

     (b) Naled (Dibrom) emulsifiable concentrate

     (c) Disulfoton (Di-Syston)

     (d) Endosulfan (Thiodan)

     (e) Oxydemeton-methyl (Metasystox-R)

     (f) Methomyl (Lannate or Nudrin)

     (g) Methoxychlor (Marlate)

     (h) Phorate (Thimet) granular

     (i) Trichlorfon (Dylox)

     (j) Oxamyl (Vydate)

     (k) Fluvalinate (Spur)



[Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-230-030, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. 88-21-098 (Order 1989), § 16-230-030, filed 10/19/88; 88-08-050 (Order 1971), § 16-230-030, filed 4/4/88; 84-09-012 (Order 1818), § 16-230-030, filed 4/10/84; Order 1041, Regulation 5, filed 2/15/67, effective 3/20/67; Order 980, Regulation 5, filed 4/6/65; Order 945, Regulation 5, filed 3/30/64; Order 916, Regulation 3, filed 4/22/63; Order 887, Regulation 3, filed 4/17/62.]