A Low-pressure, Trunk-injection Method for Introducing Chemical Formulations into Olive Trees

• DOI: 10.21273/jashs.117.2.357
• Publication Date: 2019-01-31T20:13:59Z
• Authors: C. Navarro; R. Fernández-Esc...; M. Benlloch
• Keywords: Olea; Transpiration stream

A low-pressure injection method for introducing chemical formulations into trees is presented. The apparatus consists of a plastic injector and tube providing pressure 60 to 80 kPa, which below the injurious level xylem. efficiency was determined by injecting PTS, marker apoplastic flux dye solutions, rubidium chloride young trees, main scaffolds, or tree trunks. depth hole drilled) number injections necessary distribute solutions also determined. injected moved mainly upward through older rings xylem, suggesting that uptake directly controlled transpiration rate. single enough in scaffolds with diameter 8 cm, but two were 17-cm-diameter According results, effective chemicals olive (Olea europaea L.) trees. easy use, safe economical does not involve special equipment. Chemical name used: trisodium, 3-hydroxi-5,8,10-pyrenetrisulfonate (PTS).