RESET VS. REPLANT: THE CASE OF HIGH ANNUAL TREE LOSS

MURARO, RONALD P.

Abstract


Reset options for replacing trees lost in a citrus grove were discussed in a previous FSHS paper (Muraro and Castle, 1996). Using a discounted cash budget model, several scenarios were analyzed which included no tree loss and tree loss with and without tree replacement. The hypothetical grove used in the analysis was planted at 116 trees per acre (25' × 15'). The reset scenarios showed a positive result over no reset scenarios. However, the 1996 FSHS paper did not address grower questions with regards to resetting in more densely planted hedge row groves, or under high tree loss rates due to disease problems such as citrus tristeza virus (CTV) or replanting low productive groves where incompatible rootstock, scion and soil conditions exist. This paper extends the previous paper by analyzing grove situations for annual tree losses that occur at greater than 10% and resetting options are considered for more densely planted groves. Case studies are used to compare actual grower experiences with predicted results.

Keywords


citrus; citrus reset/replacement costs; tristeza

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283