1. A. A producer may use the following practices and substances consistent with applicable label instructions:

   1. (1) Adjuvants and wetting agents (organic);
   2. (2) Allelochemics (attractants, deterrents, repellants, locomotor stimulants, and convalescents);
   3. (3) Bacillus thuringiensis (B.t.);
   4. (4) Beneficial insects, predators, parasites;
   5. (5) Biological pesticides and emulsifiers or synergists;
   6. (5-1) Cryolite;
   7. (6) Cultural practices (timing, environments);
   8. (7) Diatomaceous earth;
   9. (8) Dormant oils;
   10. (9) Elemental sulfur or liquid sulfur;
   11. (10) Fiber row covers;
   12. (11) Fungicidal soaps;
   13. (12) Garlic, hot peppers, or pureed plants;
   14. (13) Growth regulators, only if organically derived;
   15. (14) Herbal or plant-derived controls (deer repellent);
   16. (15) Hydrogen peroxide;
   17. (16) Insect extracts or purees;
   18. (17) Lime sulfur, including calcium polysulfide;
   19. (18) Mechanical or electrical controls;
   20. (19) Microbial or viral agents;
   21. (20) Micronutrients, with toxicity to be avoided;
   22. (21) Natural barriers, which include fencing and protective coatings from approved natural products;
   23. (21-1) Neem;
   24. (21-2) Pesticides from naturally occurring organisms;
   25. (22) Pheromones;
   26. (23) Physical barriers;
   27. (24) Pyrethrums, if from a botanical source;
   28. (25) Quassias;
   29. (26) Resistant varieties;
   30. (27) 1 percent Rotenone;
   31. (28) Ryania;
   32. (29) Ryania, pyrethrum, and rotenone blends, if from a botanical source;
   33. (30) Sabadilla;
   34. (31) Seed inoculants;
   35. (32) Soaps;
   36. (33) Sound;
   37. (34) Summer oils;
   38. (35) Supplemental feeding or management techniques;
   39. (36) Timing of plantings;
   40. (37) Trapping substances;
   41. (38) Tree seals;
   42. (39) Vacuuming;
   43. (40) Viral sprays; or
   44. (41) Vitamins.

2. B. A producer may use the following substances and practices subject to applicable label instructions, but only for the purpose listed for each:

   1. (1) Arsenic, which may only be used in pressure-treated wood but not for growing boxes;
   2. (2) Baking soda and vinegar, which may be used for sanitation only;
   3. (3) Boric acid, which may not be used on edible plant parts;
   4. (4) Chlorine bleach, which may only be used as a disinfectant;
   5. (5) Dormant oils (woody dormant);
   6. (6) Hydrated lime, which may be used only as a foliar fungicide;
   7. (7) Lime sulfur, which may be used only as a foliar fungicide; or
   8. (8) Summer oil, which may not be used as a herbicide.

3. C. If approved by the Department as part of the farm plan, a producer may use the following substances subject to applicable label instructions:

   1. (1) Streptomycin, with overuse to be avoided;
   2. (2) Treated seeds;
   3. (3) Bordeaux mixture;
   4. (4) Copper hydroxide;
   5. (5) Copper sulfate;
   6. (6) Cupric oxide; or
   7. (7) Tribasic copper formulations.
4. D. A producer using any of the copper-containing products listed in §C(3)—(7) of this regulation shall monitor the soil to avoid copper buildup.
5. E. A producer may use traps containing pesticides prohibited by this subtitle that do not contact, and are not added to, soil or water.

6. F. An organic producer may not use:

   1. (1) Synthetically compounded pesticides;

   2. (2) Nonsynthetic compounds, such as:

      1. (a) Arsenic;
      2. (b) Ash from manure burning;
      3. (c) Lead salts;
      4. (d) Sodium floualuminate (mined);
      5. (e) Strychnine; or
      6. (f) Tobacco dust, or nicotine-based products; or
   3. (3) Genetically engineered or modified organisms.
7. G. A producer shall forward to the Department before use the label and any other instructions for a product not listed in this regulation.

Authority: Agriculture Article, §§10-602 and 10-1402, Annotated Code of Maryland

Effective date:

Regulations .01—.12 adopted as an emergency provision effective May 21, 1991 (18:12 Md. R. 1318); emergency status expired December 1, 1991; adopted permanently effective April 13, 1992 (19:7 Md. R. 746)

Regulation .04 amended as an emergency provision effective January 30, 2001 (28:4 Md. R. 415); amended permanently effective May 14, 2001 (28:9 Md. R. 888)

Regulation .04C, D adopted as an emergency provision effective May 19, 1995 (22:12 Md. R. 897); emergency status extended at 22:19 Md. R. 1470; adopted permanently effective October 9, 1995 (22:20 Md. R. 1545)

Regulation .05 amended as an emergency provision effective January 30, 2001 (28:4 Md. R. 415); amended permanently effective May 14, 2001 (28:9 Md. R. 888)

Regulation .07B amended as an emergency provision effective May 19, 1995 (22:12 Md. R. 897); emergency status extended at 22:19 Md. R. 1470; adopted permanently effective October 9, 1995 (22:20 Md. R. 1545)

Regulation .08 amended as an emergency provision effective January 30, 2001 (28:4 Md. R. 415); amended permanently effective May 14, 2001 (28:9 Md. R. 888)

Regulation .08A amended and G adopted as an emergency provision effective May 19, 1995 (22:12 Md. R. 897); emergency status extended at 22:19 Md. R. 1470; adopted permanently effective October 9, 1995 (22:20 Md. R. 1545)

Regulation .09 amended as an emergency provision effective January 30, 2001 (28:4 Md. R. 415); amended permanently effective May 14, 2001 (28:9 Md. R. 888)

Regulation .11 amended as an emergency provision effective January 30, 2001 (28:4 Md. R. 415); amended permanently effective May 14, 2001 (28:9 Md. R. 888)

Regulation .11C amended as an emergency provision effective May 19, 1995 (22:12 Md. R. 897); emergency status extended at 22:19 Md. R. 1470; adopted permanently effective October 9, 1995 (22:20 Md. R. 1545)