Huma Gro Program Increases Strawberry Yields 13%, With an ROI > $3,400/acre

Based on data collected by Holden Research and Consulting on a trial of Huma Gro® foliar programs on Portola Strawberries in Ventura County, Calif., the Huma Gro® treatment program resulted in both higher yields and a higher percentage of marketable yield than the grower’s standard program, resulting in an overall yield increase of 13%. This yield increase resulted in a return-to-the-farm increase of almost $3,500 more per acre, a 14% increase in dollars back to the farm. Factoring in the cost of the additional Huma Gro® products applied to achieve this yield increase, the return on investment (ROI) was calculated to be 8,226%.

It is recommended that in future strawberry trials, Huma Gro® product combinations be foliarly applied at 2-week intervals and alternate Vitol® and Breakout® in the product mixes.

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Promax® Efficacy in Controlling Strawberry Pathogens

Plant Sciences, Inc., conducted an independent study to test the efficacy of Promax® for inhibiting mycelial growth of 8 fungal strawberry pathogens through in vitro bio-assay. The following 8 fungi and fungal-like pathogens were tested:

Botrytis cinera
Colletotrichum acutatum
Cylindrocarpon destructans
Fusarium oxysporum f. sp. fragariae
Macrophomina phaseolina
Phytophthora ramorum
Rhizoctonia solani
Verticillium dahlia

After 1 week of incubation, all 8 pathogens tested were completely inhibited from mycelial growth in media amended with 2% Promax® (see photos, pages 2 and 3). After 2 weeks, 7 of the 8 pathogens were still 100% inhibited. Verticillium dahlia began to grow a little after 2 weeks; the mean percentage inhibition of V. dahliae was 94% after 2 weeks (Figure 1).

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