Yes, the Foli-Cal may be used a foliar spray on Tomatoes. Apply 3 fl. oz. in 2 gallons of water at the 10-12 true leaf state, then at 14 day intervals as needed. Thorough coverage and wetting are needed for optimum foliar spray results. Applications to actively growing …
Read Full Answer »Foli-Cal is labeled to treat for calcium deficiencies that cause rot. We would highly recommend to speak with the master gardener at Your Local Cooperative Extension Office to make sure this would be the right product for your plants needs.
Since Monterey Foli-Cal is a fertilizer, there should not be any issues applying it together with another product, unless the product label for the other product prohibits such applications.
According to the Monterey Foli-Cal Product Label: "Foliar sprays of FOLI-CAL are intended to complement good soil fertility by supplying nutrients directly to the foliage, roots and fruit of crops during critical growth stages. " It is mostly intended to be used as a full coverage spray on the folia…
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Application rates for Monterey Foli-Cal vary depending on the target area you are applying to.  See label for complete application instructions
Vegetables and ornamentals: 3 fl. oz. in 2 gallons of water
Trees and vines: 6 fl. oz. in 4 gallons of water
Turf and lawns: 3 fl. oz. in 2 gallons …
Monterey Foli-Cal should be applied to vegetables using a handpump or backpack sprayer for thorough coverage. Per the product label, for treating vegetables & ornamentals, you will use 3 fl. oz. in 2 gallons of water at the 10 - 12 true leaf state, then at 14 day intervals as needed.
High levels of calcium tend to be toxic to honey bees. So it is quite possible that Monterey Foli-Cal would impact them negatively. We recommend contacting the manufacturer of Monterey Foli-Cal directly for product support regarding your question.  Monterey can be reached by emailing info@montere…
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