PHINISHER BETTER HARVESTS
Late-season biological input designed to shift plants from growth to reproduction, boosting tuber size, weight, and overall yield.
What is Phinisher?
PGPR-Based Yield Enhancer with Potassium and Organic Acids
Phinisher is a proven biological inoculant that supports crops transitioning from vegetative to reproductive growth. Designed for root and tuber crops like potatoes, it encourages energy shift toward fruit and tuber development, boosting yields, uniformity, and harvest quality. By enhancing nutrient delivery in late growth stages, it helps maximize crop potential. It’s easy to use, compatible with most fungicides (jar test recommended), and ideal for growers aiming to finish strong.

Why Choose PHINISHER?
When it's time to stop growing and start producing, Phinisher delivers. Trusted by growers for years, it helps turn a season’s work into measurable yield and quality at harvest.
FOCUSED
Designed for one clear purpose: to help plants transition from growth to reproduction. Its nutrient profile and biological components work together to promote fruiting and tuber development at exactly the right time.
PROVEN
As one of our longest-running products, Phinisher has a strong track record of performance. It’s a go-to solution for potato growers and root crop producers looking to finish their season with maximum return.
RELIABLE
Easily fits into your crop program and mixes well with most fungicides, making late-season application simple and effective. It delivers dependable results when you need them most, at the final stage of crop development.

Want more Information?
Phinisher is a Plant Growth Promoting Rhizobacteria (PGPR) product enriched with potassium, micronutrients, and organic acids that support reproductive growth. It signals plants to slow foliage production and focus energy on fruiting, tuber filling, and seed formation. Applied about 21 days before potato kill, it promotes larger tubers, higher cwt per acre, and better harvest efficiency.
For detailed information on agitation guidelines, mixing rates, and more, contact us to learn how we can help.