Horticulture crops particular perennials and fruit crops are most commonly susceptible to iron deficiency. This is of commercial importance in fruit trees like mandarins plum lemon grapes and in vegetables like tomato cucumber and bean. Other crops susceptible to iron deficiency include roses ornamentals and arable crops. Dissolvine E-Fe-13% is a product developed for usage on iron deficient soils with acid (to neutral) pH for iron deficient crops through foliar application and in hydroponic systems. Foliar application is recommended when the soil is neutral to alkaline or when soil application is impossible for other reasons.