(a) The producer must use management practices to prevent crop pests, weeds, and diseases including but not limited to:
(1) Crop rotation and soil and crop nutrient management practices, as provided for in §§205.203 and 205.205;
(2) Sanitation measures to remove disease vectors, weed seeds, and habitat for pest organisms
(3) Cultural practices that enhance crop health, including selection of plant species and varieties with regard to suitability to site-specific conditions and resistance to prevalent pests, weeds, and diseases.
(b) Pest problems may be controlled through mechanical or physical methods including but not limited to:
(1) Augmentation or introduction of predators or parasites of the pest species;
(2) Development of habitat for natural enemies of pests;
(3) Nonsynthetic controls such as lures, traps, and repellents.
(c) Weed problems may be controlled through:
(1) Mulching with fully biodegradable materials;
(2) Mowing;
(3) Livestock grazing;
(4) Hand weeding and mechanical cultivation;
(5) Flame, heat, or electrical means; or
(6) Plastic or other synthetic mulches: Provided, That, they are removed from the field at the end of the growing or harvest season.
(d) Disease problems may be controlled through:
(1) Management practices which suppress the spread of disease organisms; or
(2) Application of nonsynthetic biological, botanical, or mineral inputs.
(e) When the practices provided for in paragraphs (a) through (d) of this section are insufficient to prevent or control crop pests, weeds, and diseases, a biological or botanical substance or a substance included on the National List of synthetic substances allowed for use in organic crop production may be applied to prevent, suppress, or control pests, weeds, or diseases: Provided, That, the conditions for using the substance are documented in the organic system plan.
(f) The producer must not use lumber treated with arsenate or other prohibited materials for new installations or replacement purposes in contact with soil or livestock.
*(e): Allows the use of several different synthetic substances for use in organic crop production.
*(c5): The use of extreme heat and electric in weed prevention.
*(c6): Use of plastic and other synthetic mulches, even when removed at end of the growing season.
*(d): Vagueness of the provision to prevent disease organisms. Essentially allowing any means of prevention.
(a1) Crop Rotation
(a2) Sanitization of the field at the conclusion of harvest when necessary
(a3) Cultural Practices that create a habitat for beneficial organisms that are native to the region/habitat. EX: Adding certain native plants and flowers to surround harvest or in between rows.
(b1) Introduction of predators or parasites to the habitat to certain pests.
(b2) Development of habitat for natural enemies of pests
(c1) Mulching with fully biodegradable materials
Rotating crops is an effective way to reduce weeds and harmful insects due to the instability of the habitat, inhibiting growth (Liebman 1993).
Crop diversity is another way to promote the growth of beneficial insects and also decrease the amount of pests that target monocultures such as corn.
Promoting natural predators in the habitat is a natural way to reduce pests that can be harmful to crop yields (Flint and Phillips).
(b3) Non-synthetic controls such as lures, traps, and repellents.
(c2) Mowing
(c3) Livestock grazing
(c4) Hand weeding and mechanical cultivation
(d) Management practices which suppress the spread of disease organisms
USDA Certified Organic: Product must be 95% or more organic, meaning free of synthetic additives such as pesticides, fertilizers and dyes. In addition, must follow standards set forth and ratified by USDA (US Department of Agriculture).
Synthetic: "A substance that is formulated or manufactured by a chemical process or by a process that chemically changes a substance extracted from naturally occurring plant, animal, or mineral sources, except that such term shall not apply to substances created by naturally occurring biological processes." (1)
Flint, Mary and Roberts, Philip. "Using Crop Diversity To Manage Pest Problems: Some California Examples" American Journal of Alternative Agriculture. 30 October 2009. https://doi.org/10.1017/S088918930000244
Liebman, Matt and Dyck, Elizabeth. "Crop Rotation and Intercropping Strategies for Weed Management." Ecological Applications. 1 Feb. 1993. http://onlinelibrary.wiley.com/doi/10.2307/1941795/full
“Synthetic versus Nonsynthetic Determination.” Synthetic versus Nonsynthetic Determination | Organic Materials Review Institute, www.omri.org/suppliers/synthetic.
"Tips of Crop Rotation for Organic Gardening" Recycle This and That. 2018. http://www.recyclethisandthat.com/organic- living/tips-on-crop-rotation-for-organic-gardening.html
"USDA Organic" United States Department of Agriculture. 2018. https://www.usda.gov/topics/organic