A combination, dual effect nutrient and pest deterrent formulation for certain plant categories with ancillary effect against plant damage from certain pests, and applied by direct contact with plant tissue, such as foliage or stems, exposed above ground level, comprising a balanced combination of calcium chloride, sodium lignosulphate and an inert wetting agent； one variant formulation being effective against whitefly, another variant formulation effective against molluscs, such as slugs and snails, comprises a combination of 50 per cent by volume calcium chloride, itself of a 16 percent by volume solution concentration； 25 per cent by volume sodium lignosulphate； 25 percent by volume water； additional 0.5m1 per litre inert wetting agent added to the final mix. This formulation can be used with a proprietary wetting agent, such as an alcohol based with ethylene oxide surfactant designated UN65. A ready to use direct dosage format can be contrived based upon the foregoing.
