BF1002 formula 11 DAT. Mature April weeds, northern California.


Belvedere Foliar currently has a leader bioherbicide product, BF1002, formulated as Ready-to-Use (RTU) and Liquid Concentrate (LC) that is undergoing USEPA registration. It is a foliar applied, aqueous, non-selective postemergence herbicide. The bioherbicide has quick action that results in weed burndown in 5-7 days and plant death in the following weeks. The herbicidal activity appears to be due to a combination of burndown and systemic control of younger broadleaf and grass weeds (4-8 cm), and primarily burndown as weeds grow larger and develop a thicker cuticle. The RTU formulation is applied directly at full strength until leaves are wet, but short of runoff. The desired rate of RTU application is 30-40 gallons of product per acre (GPA). The LC as currently formulated is a 2.2X concentration of the RTU product and is diluted with an equal volume of water. The preferred application volume of LC application is 30-40 GPA of the diluted product. The LC requires the addition of 0.1 – 0.25% v/v of a 100% silicone surfactant and 1.0 – 2.5 % v/v of methylated seed oil (MSO). The effectiveness of BF1002 products is summarized under the Testing tab. Detailed and proprietary information including efficacy results are available for discussion under a Confidentiality Agreement.

BF1002 is a patented nutrient compound formulated to achieve systemic and contact herbicidal effect when applied on postemergence broadleaf and grass weeds. It has proven to be remarkably effective on young broadleaf weeds of common concern including Palmer amaranth, redroot pigweed, lambsquarters, velvetleaf, kochia, and many others. Several grass species are also controlled or suppressed by BF1002. Other specialized nutrient disruptive formulas are under development based on different active nutrient ingredients. Importantly, no Belvedere Foliar bioherbicides include the soil contaminant sodium chloride. Owing to the benign nature of the BF1002 active ingredients, it is anticipated that the product will have no residual herbicidal effect in the soil. The use of BF1002 should not restrict crop rotations thus allowing flexibility in crop selection after burndown treatment.

The nonselective postemergence herbicide market is the largest weed control market that is valued over $1.7 billion in the U.S. market alone. Belvedere Foliar believes BF1002 can compete in the nonselective postemergence herbicide markets in both conventional and organic market. Licensing of BF1002 to one or more larger and well-established pesticide companies capable of continuing product optimization is the current goal of Belvedere Foliar.

Development Goals

  • Continued testing under different environmental conditions and with additional weed species.
  • Continue optimization of formulations to reduce cost and application rates.
  • Estimate the value of residual nutrient active ingredients to fertilizer programs.
  • Continue development of BelFol formulas that qualify for OMRI registration.

Although in-house and contracted third-party field and greenhouse research has demonstrated effective control of a variety of weeds using BF1002 and other BelFol bioherbicide formulas, future testing under different environmental conditions such as hot and humid, hot and dry, and cooler conditions is anticipated.

The release of the active nutrient in BF1002 and other formulations is anticipated to improve growth and in landscape vegetation, crops, orchard, and vineyards. However, the current registration for BF1002 is as an herbicide only, not a fertilizer.

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